Skip to main content

Home/ Open Intelligence / Energy/ Group items tagged northern

Rss Feed Group items tagged

D'coda Dcoda

Measures radioactive iodine in Barents Region [30Jan12] - 0 views

  • Very low levels of the radioactive isotope iodine-131 in northern part of Norway, Sweden and Finland. Norwegian Radiation authorities is unsure about the source, but says it might come from, or via Russian territory.
  • Norwegian Radiation Protection Authorities (NRPA) says in a short press-note Tuesday evening that the levels they measured pose no health risk. The measurements of radioactive iodine in northern part of the Barents Region were made several days ago, but results of the analyses were first made public Tuesday evening by coordinated press-notes from radiation authorities in Finland, Sweden and Norway. NRPA says that two of the six online measuring stations in Finnmark in the high north of Norway have indicated increased levels of radioactive iodine.
  • Swedish radiation protection authority says in thier brief that very low levels of radioactive iodine-131 are meassured at their station in Kiruna in northern Sweden.
  • ...1 more annotation...
  • Neither Swedish, Finnish nor Norwegian authorities have been  informed about any releases of radioactivity anyplace in northern Europe.  The source is most likely a reactor or a isotope-source at a hospital, according to the press-note from NRPA.
D'coda Dcoda

The Ancient Walk to Ban Nuclear Waste in Northern Saskatchewan [10Oct11] - 0 views

  • Starting on July 27, 2011, a walk was started from Pinehouse, SK to educate people of the province about the potential of a Nuclear Waste Dump being located in Northern Saskatchewan. The people walked 820 km and gathered signatures on their petitions and delivered them on the steps of the legislature in Regina, SK. The 7000 Generation Wonska Walk! This is dedicated to the walkers, the supporters, and all the people that assisted them along the way. To follow this action, go to Say No to Nuclear Waste in Northern Saskatchewan on Facebook. And SAY NO TO NUCLEAR! Original music performed by Marius Paul, who walked the whole trek! Many thanks to all who documented the walk! Thanks to the Committee for Future Generations who continue to educate and take action!
  •  
    video
D'coda Dcoda

33 Radioactive Canals Revealed at Los Alamos [03Oct11] - 0 views

  • LOS ALAMOS, N.M. (AP) — Pickup trucks believed present at the world's first nuclear bomb test, coke and whiskey bottles, a calendar and a toothbrush are just a few of the items unearthed by a cleanup of one of Los Alamos National Laboratory's original toxic dump sites, where the detritus of the 1940s Manhattan Project was strewn through some of northern New Mexico's most scenic mesas and canyons.More important, workers also extracted 43,000 cubic yards of radioactive debris and toxic soil — all beneath highly specialized containment domes — from what is known as Area B, just across the street from a strip of local businesses, and just more than a mile from downtown Los Alamos.The three-year, $212 million excavation project on the six-acre site was completed last month, and lab officials boast that environmental conditions there will soon be suitable for residential development.That's the good news.
  • But cleaning up the greater 40-square mile lab complex, situated 25 miles northwest of Santa Fe at the top of a series of canyons whose storm waters run into the Rio Grande, is far from complete. And this summer's massive Las Conchas fire that singed lab property heightened environmental and safety fears associated with more than 70 years of nuclear production and experiments."I think every time that there is some natural event that has ... the potential for disturbing radioactive sources, everybody becomes very interested in what is going on," said Ralph Phelps, chairman of the Northern New Mexico Citizens Advisory Board.Although lab officials downplayed the fire danger at the time, Phelps said the waste and contaminated buildings at the 63-acre site known as Area G definitely pose a safety threat to northern New Mexico.
  • As a result, Gov. Susana Martinez and the Citizens Advisory Board have increased pressure on the National Nuclear Safety Administration, which runs the lab for the Department of Energy, to accelerate removal of thousands of barrels of plutonium-tainted waste stored in Area G, the lab's last active dump site. Those barrels gained national focus when the state's largest ever wildfire forced a nearly weeklong evacuation of both the lab and the entire town of Los Alamos."Fire up here is something that the folks have been through," Phelps said. "... If a fire were to reach that that area and heat that stuff up and rupture the drums, there is the potential that some of that could go airborne."Martinez sent lab officials a letter asking that they reprioritize their cleanup plans, which are laid out in a consent order with the state requiring remediation of 90 percent of toxic waste on lab property by 2015 at a cost of some $2 billion.
  • ...2 more annotations...
  • That consent order covers 33 underground canals of radioactive waste below the barrels, but not the barrels, which are awaiting transfer to the Waste Isolation Pilot Project in southern New Mexico. A record 170 shipments of the legacy waste from the nation's premier nuclear weapons facility were taken to WIPP in the fiscal year that just ended, but the equivalent of some 40,000 barrels remain."The governor wants to get the (barrels) off the hill and protect the groundwater and wastewater," said Ed Worth, who oversees waste cleanup at the lab.The same top priority was approved last week by the Citizens Board, volunteers comprised of former lab workers, retirees, public employees and others, chartered by DOE to make recommendations on establishing the order of cleanup initiatives."All we do is tell them they should," said Lawrence Longacre, a board member expressing frustration that the priority recommendations had no teeth. "Is there any way we can hold their feet to the fire and say do A, B and C?"
  • Worth told the board their recommendations are being heard and taken seriously, noting that President Obama's budget request this year for lab cleanup "was more than we ever expected."Congress, however, has cut the Los Alamos cleanup request for $358 million to $185 million, raising the question of the lab's ability to meet the consent decree
D'coda Dcoda

Expert: Radioactive materials reached Kanto via 2 routes [28Oct11] - 0 views

  • Radioactive materials from the damaged Fukushima No. 1 nuclear plant reached the Kanto region mainly via two routes, but they largely skirted the heavily populated areas of Tokyo and Kanagawa Prefecture, an expert said. Relatively high levels of radioactive cesium were detected in soil in northern Gunma and Tochigi prefectures and southern Ibaraki Prefecture after the Fukushima No. 1 nuclear power plant was damaged by the March 11 Great East Japan Earthquake and tsunami. But contamination was limited in Tokyo and Kanagawa Prefecture, where 22 million people live. Hiromi Yamazawa, a professor of environmental radiology at Nagoya University, said the first radioactive plume moved through Ibaraki Prefecture and turned northward to Gunma Prefecture between late March 14 and the afternoon of March 15.
  • Large amounts of radioactive materials were released during that period partly because the core of the No. 2 reactor at the Fukushima No. 1 plant was exposed. "The soil was likely contaminated after the plume fell to the ground with rain or snow," Yamazawa said, adding that western Saitama Prefecture and western Tokyo may have been also contaminated. Rain fell in Fukushima, Tochigi and Gunma prefectures from the night of March 15 to the early morning of March 16, according to the Meteorological Agency. The second plume moved off Ibaraki Prefecture and passed through Chiba Prefecture between the night of March 21 and the early morning of March 22, when rain fell in a wide area of the Kanto region, according to Yamazawa's estimates.
  • He said the plume may have created radiation hot spots in coastal and southern areas of Ibaraki Prefecture as well as around Kashiwa, Chiba Prefecture. Yamazawa said the plume continued to move southward, without approaching Tokyo or Kanagawa Prefecture, probably because winds flowed toward a low-pressure system south of the Boso Peninsula. "It rained slightly because the low-pressure system was not strong," said Takehiko Mikami, a professor of climatology at Teikyo University. "Contamination in central Tokyo might have been more serious if (the plume) had approached more inland areas." According to calculations by The Asahi Shimbun, about 13,000 square kilometers, or about 3 percent of Japan's land area, including about 8,000 square kilometers in Fukushima Prefecture, have annual exposure levels of 1 millisievert or more.
  • ...3 more annotations...
  • Gunma and Tochigi prefectures have a combined 3,800 square kilometers with an annual exposure of 1 millisievert or more. Among Tokyo's 23 wards, Katsushika Ward had the highest radiation level of 0.33 microsievert per hour, according to a science ministry map showing radioactive contamination for 12 prefectures. The ward government has been measuring radiation levels in seven locations once a week since late May. It plans to take measurements at about 500 public facilities, such as schools and parks, in response to residents' demands for detailed surveys.
  • The Gunma prefectural government has measured radiation levels in 149 locations since September and has identified six northern mountainous municipalities with an annual exposure of 1 millisievert or more. Earlier this month, the prefectural government asked 35 municipalities to decide whether radioactive materials will be removed. High radiation levels were detected in Minakami, Gunma Prefecture, known as a hot spring resort. Mayor Yoshimasa Kishi said the town could be mistaken as a risky place if it decides to have radioactive materials removed. The science ministry's map showed that 0.2 to 0.5 microsievert was detected in some locations in Niigata Prefecture. Niigata Governor Hirohiko Izumida said the figures were likely mistaken, noting that these locations have high natural radiation levels because of granite containing radioactive materials.
  • The prefectural government plans to conduct its own surveys of airborne radiation levels and soil contamination. Many municipalities are calling for financial support for removing radioactive materials. In Kashiwa and five other cities in northern Chiba Prefecture, radioactive materials need to be removed over an estimated 180 square kilometers of mainly residential areas. The Kashiwa city government is providing up to 200,000 yen ($2,620) to kindergartens and nursery schools for removal work. But some facilities have asked children's parents to help pay the costs because they cannot be covered by the municipal assistance.
D'coda Dcoda

The Death Of The Pacific Ocean [06Dec11] - 3 views

  • An unstoppable tide of radioactive trash and chemical waste from Fukushima is pushing ever closer to North America. An estimated 20 million tons of smashed timber, capsized boats and industrial wreckage is more than halfway across the ocean, based on sightings off Midway by a Russian ship's crew. Safe disposal of the solid waste will be monumental task, but the greater threat lies in the invisible chemical stew mixed with sea water.
  • This new triple disaster floating from northeast Japan is an unprecedented nuclear, biological and chemical (NBC) contamination event. Radioactive isotopes cesium and strontium are by now in the marine food chain, moving up the bio-ladder from plankton to invertebrates like squid and then into fish like salmon and halibut. Sea animals are also exposed to the millions of tons of biological waste from pig farms and untreated sludge from tsunami-engulfed coast of Japan, transporting pathogens including the avian influenza virus, which is known to infect fish and turtles. The chemical contamination, either liquid or leached out of plastic and painted metal, will likely have the most immediate effects of harming human health and exterminating marine animals.
  • Many chemical compounds are volatile and can evaporate with water to form clouds, which will eventually precipitate as rainfall across Canada and the northern United States. The long-term threat extends far inland to the Rockies and beyond, affecting agriculture, rivers, reservoirs and, eventually, aquifers and well water.   Falsifying Oceanography
  • ...10 more annotations...
  • Soon after the Fukushima disaster, a spokesman for the International Atomic Energy Agency (IAEA) at its annual meeting in Vienna said that most of the radioactive water released from the devastated Fukushima No.1 nuclear plant was expected to disperse harmlessly in the Pacific Ocean. Another expert in a BBC interview also suggested that nuclear sea-dumping is nothing to worry about because the "Pacific extension" of the Kuroshio Current would deposit the radiation into the middle of the ocean, where the heavy isotopes would sink into Davy Jones's Locker.
  • The current is a relatively narrow band that acts like a conveyer belt, meaning radioactive materials will not disperse and settle but should remain concentrated   Soon thereafter, the IAEA backtracked, revising its earlier implausible scenario. In a newsletter, the atomic agency projected that cesium-137 might reach the shores of other countries in "several years or months." To be accurate, the text should have been written "in several months rather than years."
  • chemicals dissolved in the water have already started to reach the Pacific seaboard of North America, a reality being ignored by the U.S. and Canadian governments.   It is all-too easy for governments to downplay the threat. Radiation levels are difficult to detect in water, with readings often measuring 1/20th of the actual content. Dilution is a major challenge, given the vast volume of sea water. Yet the fact remains that radioactive isotopes, including cesium, strontium, cobalt and plutonium, are present in sea water on a scale at least five times greater than the fallout over land in Japan.
  • Start of a Kill-Off   Radiation and chemical-affected sea creatures are showing up along the West Coast of North America, judging from reports of unusual injuries and mortality.   - Hundreds of large squid washed up dead on the Southern California coast in August (squid move much faster than the current).   - Pelicans are being punctured by attacking sea lions, apparently in competition for scarce fish.   - Orcas, killer whales, have been dying upstream in Alaskan rivers, where they normally would never seek shelter.
  • - The 9-11 carbon compounds in the water soluble fraction of gasoline and diesel cause cancers.   - Surfactants, including detergents, soap and laundry powder, are basic (versus to acidic) compounds that cause lesions on eyes, skin and intestines of fish and marine mammals.   - Pesticides from coastal farms, organophosphates that damage nerve cells and brain tissue.   - Drugs, from pharmacies and clinics swept out to sea, which in tiny amounts can trigger major side-effects.
  • Japan along with many other industrial powers is addicted not just to nuclear power but also to the products from the chemical industry and petroleum producers. Based on the work of the toxicologist in our consulting group who worked on nano-treatment system to destroy organic compounds in sewage (for the Hong Kong government), it is possible to outline the major types of hazardous chemicals released into sea water by the tsunami.   - Polychlorinated biphenols (PCBs), from destroyed electric-power transformers. PCBs are hormone disrupters that wreck reproductive organs, nerves and endocrine and immune system.   - Ethylene glycol, used as a coolant for freezer units in coastal seafood packing plans and as antifreeze in cars, causes damage to kidneys and other internal organs.
  • Ringed seals, the main food source for polar bears in northern Alaska, are suffering lesions on their flippers and in their mouths. Since the Arctic seas are outside the flow from the North Pacific Current, these small mammals could be suffering from airborne nuclear fallout carried by the jet stream.   These initial reports indicate a decline in invertebrates, which are the feed stock of higher bony species. Squid, and perhaps eels, that form much of the ocean's biomass are dying off. The decline in squid population is causing malnutrition and infighting among higher species. Sea mammals, birds and larger fish are not directly dying from radiation poisoning ­ it is too early for fatal cancers to development. They are dying from malnutrition and starvation because their more vulnerable prey are succumbing to the toxic mix of radiation and chemicals.
  • The vulnerability of invertebrates to radiation is being confirmed in waters immediately south of Fukushima. Japanese diving teams have reported a 90 percent decline in local abalone colonies and sea urchins or uni. The Mainichi newspaper speculated the losses were due to the tsunami. Based on my youthful experience at body surfing and foraging in the region, I dispute that conjecture. These invertebrates can withstand the coast's powerful rip-tide. The only thing that dislodges them besides a crowbar is a small crab-like crustacean that catches them off-guard and quickly pries them off the rocks. Suction can't pull these hardy gastropods off the rocks.
  • hundreds of leather-backed sea slugs washed ashore near Choshi. These unsightly bottom dwellers were not dragged out to sea but drifted down with the Liman current from Fukushima. Most were still barely alive and could eject water although with weak force, unlike a healthy sea squirt. In contrast to most other invertebrates, the Tunicate group possesses enclosed circulatory systems, which gives them stronger resistance to radiation poisoning. Unlike the more vulnerable abalone, the sea slugs were going through slow death.
  • Instead of containment, the Japanese government promoted sea-dumping of nuclear and chemical waste from the TEPCO Fukushima No.1 plant. The subsequent "decontamination" campaign using soapy water jets is transporting even more land-based toxins to the sea.   What can Americans and Canadians do to minimize the waste coming ashore? Since the federal governments in the U.S. (home of GE) and Canada (site of the Japanese-owned Cigar Lake uranium mine) have decided to do absolutely nothing, it is up to local communities to protect the coast.  
D'coda Dcoda

RSOE EDIS - HAZMAT in USA on Tuesday, 07 February, 2012 at 15:43 (03:43 PM) UTC. EDIS C... - 0 views

shared by D'coda Dcoda on 08 Feb 12 - No Cached
  • Fish taken from a lake in northern Vermont had similar levels of strontium-90 and cesium-137 as fish taken from the Connecticut River near Vermont Yankee nuclear power plant in Vernon. During a Feb. 3 meeting of the House Fish, Wildlife and Water Resources Committee in the Vermont Statehouse, committee members heard from Bill Irwin, chief of radiological health for the Vermont Department of Health. "We got preliminary results from our fish sample analysis from Lake Carmi in northern Franklin County," Irwin told the Reformer on Monday. Irwin said Lake Carmine, in Enosburg Falls, is about as far away from Yankee as you can get and still be in the Green Mountain State. "The results are that cesium-137 and strontium-90 in Lake Carmi fish is in the same range as Connecticut River fish," said Irwin. "We take this as some evidence that all fish in Vermont are likely to have radioactive cesium and strontium at these levels and that, as we've hypothesized, it is from nuclear weapons fallout and the releases of Chernobyl. All of us are glad to have proof and not just conjecture." The fish taken from Lake Carmi were small-mouth bass, he said, and were taken from the lake by Vermont Fish and Wildlife fisheries personnel. Cesium was found in both edible and inedible portions of the bass, he said, while strontium was found only in inedible portions, which include bones, the head, fins and scales. "There's no danger in eating the fish," said Irwin. "Should we ever find that there are reasons to restrict diet from any sampling for any kind of radioactive or toxicological events, we would keep in mind different cultures have different diets."
  • In the same analyses, the fish had almost 500 times more potassium-40 in them than they do cesium-137, he said. Potassium-40 is a naturally occurring radioactive material that is in nearly everything and was created when the planet was formed billions of years ago, said Irwin. A fish taken from the Connecticut River in 2010 had the highest levels of strontium-90 in bone that his department has seen in any samples. "In that same sample we did find very low but measurable amounts of strontium-90 in the meat of the fish," said Irwin, which could have been a sampling or contamination error. "But we don't know that." The sampling is part of an ongoing multi-state operation to help determine what is the level of the two radioactive isotopes in fish in Vermont, New Hampshire, Massachusetts and New York. "We hope to further populate this data with fish taken from waters unaffected by nuclear power plants," said Irwin. The states are also working with the a Food and Drug Administration laboratory in Winchester, Mass., to develop sampling and analysis protocols. When more data has been assembled from around the region, Irwin said they hope to publish it in scientific journals. The results of the sampling from Lake Carmi will be posted soon on DOH's website, he said. When this year's fishing season begins, Fish and Wildlife personnel will be taking more fish for the Department of Health.
  •  
    this is the description attached to the RSOE hazmat alert for Vermont Yankee, yet it doesn't say anything about the plant directly, assumes radiation is from nuclear testing or Chernobyl...yet someone at RSOE is applying this article to Vermont Yankee
D'coda Dcoda

Disease killing Pacific herring threatens salmon, scientist warns [13Aug13] - 0 views

  •  
    Independent fisheries scientist Alexandra Morton is raising concerns about a disease she says is spreading through Pacific herring causing fish to hemorrhage. Ms. Morton has called on the federal Department of Fisheries and Oceans to investigate, saying it could cause large-scale herring kills and infect wild salmon, which feed heavily on herring. "I've been seeing herring with bleeding fins," Ms. Morton said Monday. "Two days ago I did a beach seine on Malcolm Island [near Port McNeill on northern Vancouver Island] and I got approximately 100 of these little herring and they were not only bleeding from their fins, but their bellies, their chins, their eyeballs. These are very, very strong disease symptoms."
D'coda Dcoda

Up to the minute US Military Response ... - Earthquake Disaster in Japan [18Mar11] - 0 views

  • Stars and Stripes reporters across Japan and the world are sending disaster dispatches as they gather new facts, updated in real time. All times are local Tokyo time.  Japan is 13 hours ahead of the East Coast. So for example, 8 a.m. EDT is 9 p.m. in Japan.
  • No increase in Yokota radiation levels   11 p.m. Saturday, Tokyo timeLatest advisory from Yokota’s Facebook page says base officials there just checked with emergency managers and they have confirmed that the radiation levels at Yokota remain at the same background levels we experience every day (even prior to the quake)."To ensure everyone's safety, we are scanning air samples repeatedly every day, we're checking the water daily and we are inspecting aircraft ... and vehicles as they arrive," the Facebook page says.-- Dave Ornauer
  • The latest on Navy support to Japan   10:20 p.m. Saturday, Tokyo timeU.S. 7th Fleet has 12,750 personnel, 20 ships, and 140 aircraft participating in Operation Tomodachi. Seventh Fleet forces have delivered 81 tons of relief supplies to date.USS Tortuga is in the vicinity of Hachinohe where she will serve as an afloat forward service base for helicopter operations. CH-53 Sea Stallion aircraft from attached to Tortuga delivered 13 tons of humanitarian aid cargo on Friday, including 5,000 pounds of water and 5,000 MREs, to Yamada Station, 80 miles south of Misawa.USS Essex, USS Harpers Ferry and USS Germantown with the embarked 31st Marine Expeditionary Unit arrived off the coast of Akita prefecture Saturday. Marines of the 31st MEU have established a Forward Control Element in Matsushima to coordinate disaster aid planning with officials. They are scheduled to move to Sendai later Saturday.
  • ...10 more annotations...
  • The USS Ronald Reagan Carrier Strike Group, to include the cruiser USS Chancellorsville, the destroyer USS Preble and the combat support ship USNS Bridge, the guided-missile destroyers USS Fitzgerald, USS John S. McCain, USS McCampbell, USS Mustin and USS Curtis Wilbur continue relief operations off the east coast of Iwate prefecture. Three U.S. Navy liaison officers are on JS Hyuga to coordinate U.S. operations with Japan Maritime Self Defense force leadership.Helicopters from HS-4 and HSL-43 with the Reagan strike group, and HSL-51 from Carrier Airwing Five (CVW-5) in Atsugi, on the 18th delivered 28 tons of food, water, clothes, medicine, toiletries, baby supplies, and much needed kerosene to displaced persons at fifteen relief sites ashore. For two of the relief sites serviced, it was the first humanitarian aid they have received since the tsunami a week ago. Eight of the sites serviced made requests for specific aid, including a need for a medical professional.CVW-5 on Friday completed the relocation of 14 helos normally assigned to USS George Washington from Atsugi to Misawa Air Base in northern Honshu.
  • USS Cowpens continued its northerly track to rendezvous with the Reagan Carrier Strike Group. Cowpens is expected to join the Strike Group overnight. USS Shiloh is en route from Yokosuka to deliver relief supplies to the Strike Group.USS Blue Ridge, the flagship for the U.S. 7th Fleet, remains in the vicinity of Okinawa to conduct transfers of supplies and additional personnel to augment the staff.All 7th Fleet ships, including George Washington and USS Lassen which are currently conducting maintenance in Yokosuka, are preparing to go. Personnel have been recalled and leaves canceled.
  • Two P-3 Orion aircraft from Patrol Squadron Four conducted two aerial survey missions over ports and airfields in northern Honshu on Saturday. CTF-72 has embarked two liaison officers from Japan Maritime Self Defense Force on each mission. Aerial imagery captured on these missions is shared with Japan. VP-4 has established a detachment in Misawa with two aircraft and four aircrews. Radioactive iodine found in Tokyo drinking water10:07 p.m. Saturday, Tokyo timeFrom the Associated Press:TOKYO — Japan officials say radioactive iodine detected in drinking water for Tokyo and other areas.
  • A valuable resource on your entitlements during evacuations
  • The link for this Office of Personnel Management (OPM) handbook is: http://www.opm.gov/oca/compmemo/2008/HandbookForEmergencies(PayAndLeave)
  • Voluntary departure" updates at Misawa
  • Video: Yokosuka commander talks flights
  • Who is authorized to fly out?·         Command Sponsored and non-Command Sponsored Dependents of Uniformed and Civilian DoD personnelo    NOTE: Non-Command Sponsored dependents are only entitled to a round trip flight to the first destination in the United States. These dependents are not entitled to draw per diem or Safe Haven Allowance.What about girlfriends or significant others?They are not authorized departure. Only <span>Dependents</span> of Uniformed and Civilian DoD personnel are covered by the current authorization.
  • What about dependents of our NAFA/CFAY/ZAMA contractors?·         They will be allowed to board the plane and fly to the States, HOWEVER, as things currently stand, they are NOT entitled to any allowances or even to government-funded air travel out of NAFA.·         Funding issues should be worked through the contractor’s parent company, and the contractor sponsor should beware that he/she may ultimately be required to reimburse the U.S. Government for the value of the flight.
  • What about non-DoD American Citizens who aren’t contractors or attached to our bases?
  •  
    a log of updates during the initial phase of the disaster, mainly about evacuating military and report of navy vessels arriving to aid, Didn't highlight all of it, see site for more
D'coda Dcoda

How Fukushima Impacted The Massive Arctic Ozone Loss [03Oct11] - 0 views

  • Here, based simplified, are the chemical reactions in the atmosphere, which explain how the Fukushima disaster impacted the Arctic ozone hole.   The cold winter in 2010-2011 produced dense stratospheric clouds over the Arctic, which due to the presence of water promoted chemical reactions with various gases to produce compounds that deplete ozone over the Arctic Circle.   The Arctic ozone hole, that began expanding due to the clouds, radically widened in March and April, coinciding with the Fukushima disaster.
  • The damaged Fukushima reactors and burning fuel rods released many, many tons of of iodine (a highly-reactive ozone-attacking agent)  and xenon, which soon transformed into xenon fluoride (produced when xenon comes under UV catalysis to combine with fluorine gas in the atmosphere).     Fluorine is abundant over the US Pacific Northwest and Canada. The jet stream carried the iodine and newly-formed XeFl compounds in a northeasterly direction, crossing into the Arctic circle and looping back down over Greenland, Scandinavia and European Russia. This exactly accounts for the oblong shape and direction of the expanded ozone hole.
  • From the Mainichi newspaper...   Researchers Report Unprecedented Ozone Loss In Arctic   10-3-11   TSUKUBA, Japan (Kyodo) -- The depletion of the Arctic ozone layer reached an unprecedented level in early 2011 and was "comparable to that in the Antarctic," an international research team said Sunday in the online version of the British science magazine Nature.   "For the first time, sufficient loss occurred to reasonably be described as an Arctic ozone hole," said the nine-country team, including Hideaki Nakajima of the National Institute for Environmental Studies in Tsukuba in Ibaraki Prefecture.
  • ...3 more annotations...
  • "Our results show that Arctic ozone holes are possible even with temperatures much milder than those in the Antarctic," it also said.   It is harder for ozone-destroying chlorine monoxide to form in the stratosphere of the Arctic as winter temperatures are higher than in the Antarctic, according to the group.   But the depletion of the ozone layer over the Arctic appears to have progressed greatly this winter to spring because unusually cold temperatures from December through the end of March enhanced ozone-destroying forms of chlorine.   "The 2010-11 Arctic winter-spring was characterized by an anomalously strong stratospheric polar vortex and an atypically long continuously cold period," the team said in the article contributed to Nature.
  • "This was a phenomenon we had not anticipated," Nakajima said.   "If the layer of ozone that blocks ultraviolet rays is eradicated, it will negatively affect human health," he said, adding, "We need to monitor the situation down the track."   The team, which has been observing the distribution of atmospheric ozone in the Northern Hemisphere, found in March that the area of low ozone density had spread from the Arctic Sea to over Scandinavia, northern Russia and Greenland.
  • The loss of the ozone layer was especially prominent in high-altitude zones, with the team estimating that around 40 percent of the ozone layer has been lost, up from a previous reading of 30 percent.   The level is comparable to that of the ozone hole that annually appears over the Antarctic in the September-October period, it added.   (Mainichi Japan) October 3, 2011
D'coda Dcoda

Fukushima cesium contamination widespread but less than Chernobyl [14Sep11] - 0 views

  • An extensive area of more than 8,000 square kilometers has accumulated cesium 137 levels of 30,000 becquerels per square meter or more after the accident at the Fukushima No. 1 nuclear power plant, according to Asahi Shimbun estimates.
  • The affected area is one-18th of about 145,000 square kilometers contaminated with cesium 137 levels of 37,000 becquerels per square meter or more following the 1986 Chernobyl accident in the former Soviet Union.
  • The contaminated area includes about 6,000 square kilometers in Fukushima Prefecture, or nearly half of the prefecture. Fukushima Prefecture, the third largest in Japan, covers 13,782 square kilometers.
  • ...3 more annotations...
  • The government has not disclosed the size of the area contaminated with cesium 137 released from the crippled Fukushima No. 1 plant. Cesium 137 has a long half-life of about 30 years. The Asahi Shimbun calculated the size of the contaminated area based on a distribution map of accumulated cesium 137 levels measured from aircraft, which was released by the science ministry on Sept. 8.
  • The estimated size may increase in the future because the distribution map will be subject to corrections and because it currently covers only five prefectures. The contaminated area includes about 1,370 square kilometers in northern Tochigi Prefecture, about 380 square kilometers in southern Miyagi Prefecture and about 260 square kilometers in Ibaraki Prefecture.
  • In the Chernobyl accident, a vapor explosion occurred at the No. 4 reactor during an experiment, spewing radioactive materials contained in fuel up thousands of meters into the atmosphere, which spread over Europe and other areas in the Northern Hemisphere. The amount of radioactive materials released from the Fukushima No. 1 plant was relatively limited because the reactors were damaged but still sealed to some extent.
D'coda Dcoda

Japan cities face growing radioactive ash, troubles ahead [17Oct11] - 0 views

  • Ohtawara and Kashiwa are just two of a growing number of municipalities across northern Japan that face similar problems after the Fukushima Daiichi atomic power plant, devastated by a huge March quake and tsunami, began spewing radiation into the atmosphere in the world's worst nuclear accident in 25 years.Although the government aims to bring the Fukushima crisis under control by December, researchers say that problems arising from the radiation, scattered over mountains, rivers and residential areas, are set to persist for years.
  • Ohtawara has already cut the frequency of garbage collection by half to hold down the generation of radioactive ash, by-product of burning contaminated leaves and branches.Nonetheless, fresh bags of radioactive ash will have to be left in empty outdoor space at the incineration facility with no proper shelter around them, the official said.
  • A draft plan by the Environment Ministry calls for the government to take responsibility for disposing of ash and sludge with radiation levels above 8,000 becquerels/kg, but a ministry official said nothing concrete has been decided.Following hydrogen explosions at the Fukushima plant in March, rainfall has brought radiation down to the earth's surface.Part of the radioactive caesium, which can cause internal radiation exposure for an extended period, found its way into sewage systems and, through the purification process, was concentrated in sludge as well as the ash that is produced by burning sludge.
  • ...1 more annotation...
  • In northern Japan, stored-up radioactive ash and dehydrated sludge from the sewage treatment process alone totaled 52,000 tones in mid-September, up 63 percent from levels at the end of July, data from the Transport Ministry showed.The volume is still growing by about 360 tones a day.The growing piles of radioactive ash are also causing financial headaches for local governments.Nagareyama city, next to Kashiwa, has set aside about 250 million yen ($3.2 million) in three of its four extra budgets so far this year for temporary storage and related projects.
D'coda Dcoda

German Nuclear Decommissioning and Renewables Build-Out [23Oct11] - 0 views

  • Germany will be redirecting its economy towards renewable energy, because of the political decision to decommission its nuclear plants, triggered by the Fukushima event in Japan and subsequent public opposition to nuclear energy. Germany's decision would make achieving its 2020 CO2 emission reduction targets more difficult.   To achieve the CO2 emissions reduction targets and replace nuclear energy, renewable energy would need to scale up from 17% in 2010 to 57% of total electricity generation of 603 TWh in 2020, according to a study by The Breakthrough Institute. As electricity generation was 603 TWh in 2010, increased energy efficiency measures will be required to flat-line electricity production during the next 9 years.   Germany has 23 nuclear reactors (21.4 GW), 8 are permanently shut down (8.2 GW) and 15 (13.2 GW) will be shut down by 2022. Germany will be adding a net of 5 GW of coal plants, 5 GW of new CCGT plants and 1.4 GW of new biomass plants in future years. The CCGT plants will reduce the shortage of quick-ramping generation capacity for accommodating variable wind and solar energy to the grid.
  • Germany is planning a $14 billion build-out of transmission systems for onshore and future offshore wind energy in northern Germany and for augmented transmission with France for CO2-free hydro and nuclear energy imports to avoid any shortages.    Germany had fallen behind on transmission system construction in the north because of public opposition and is using the nuclear plant shutdown as leverage to reduce public opposition. Not only do people have to look at a multitude of 450-ft tall wind turbines, but also at thousands of 80 to 135 ft high steel structures and wires of the transmission facilities.   The $14 billion is just a minor down payment on the major grid reorganization required due to the decommissioning of the nuclear plants and the widely-dispersed build-outs of renewables. The exisitng grid is mostly large-central-plant based. 
  • This article includes the estimated capital costs of shutting down Germany's nuclear plants, reorganizing the grids of Germany and its neighbors, and building out renewables to replace the nuclear energy.    Germany’s Renewable Energy Act (EEG) in 2000, guarantees investors above-market fees for solar power for 20 years from the point of installation. In 2010, German investments in  renewables was about $41.2 billion, of which about $36.1 billion in 7,400 MW of solar systems ($4,878/kW). In 2010, German incentives for all renewables was about $17.9 billion, of which about half was for solar systems.   The average subsidy in 2010 was about ($9 billion x 1 euro/1.4 $)/12 TWh = 53.6 eurocents/kWh; no wonder solar energy is so popular in Germany. These subsidies are rolled into electric rates as fees or taxes, and will ultimately make Germany less competitive in world markets.   http://thebreakthrough.org/blog//2011/06/analysis_germanys_plan_to_phas-print.html http://mobile.bloomberg.com/news/2011-05-31/merkel-faces-achilles-heel-in-grids-to-unplug-german-nuclear.html http://www.theecologist.org/News/news_analysis/829664/revealed_how_your_country_compares_on_renewable_investment.html http://en.wikipedia.org/wiki/Solar_power_in_Germany  
  • ...12 more annotations...
  • SUMMARY OF ESTIMATED CAPITAL AND OTHER COSTS   The estimated capital costs and other costs for decommissioning the nuclear plants, restoring the sites, building out renewables, wind and solar energy balancing plants, and reorganizing electric grids over 9 years are summarized below.    The capital cost and subsidy cost for the increased energy efficiency measures was not estimated, but will likely need to be well over $180 billion over 9 years, or $20 billion/yr, or $20 b/($3286 b in 2010) x 100% = 0.6% of GDP, or $250 per person per yr.     Decommission nuclear plants, restore sites: 23 @ $1 billion/plant = $23 billion Wind turbines, offshore: 53,300 MW @ $4,000,000/MW = $213.2 billion   Wind turbines, onshore: 27,900 MW @ $2,000,000/MW = $55.8 billion Wind feed-in tariff extra costs rolled into electric rates over 9 years: $200 billion  Solar systems: 82,000 MW @ $4,500,000/MW = $369 billion Solar feed-in tariff extra costs rolled into electric rates over 9 years = $250 billion. Wind and solar energy balancing plants: 25,000 MW of CCGTs @ $1,250,000/MW = $31.3 billion Reorganizing European elecric grids tied to German grids: $150 billion
  • RENEWABLE ENERGY AND ENERGY EFFICIENCY TARGETS   In September 2010 the German government announced the following targets:   Renewable electricity - 35% by 2020 and 80% by 2050 Renewable energy - 18% by 2020, 30% by 2030, and 60% by 2050 Energy efficiency - Reducing the national electricity consumption 50% below 2008 levels by 2050.  http://en.wikipedia.org/wiki/Renewable_energy_in_Germany   Germany has a target to reduce its nation-wide CO2 emissions from all sources by 40% below 1990 levels by 2020 and 80-85% below 1990 levels by 2050. That goal could be achieved, if 100% of electricity is generated by renewables, according to Mr. Flasbarth. Germany is aiming to convince the rest of Europe to follow its lead.
  • A 2009 study by EUtech, engineering consultants, concluded Germany will not achieve its nation-wide CO2 emissions target; the actual reduction will be less than 30%. The head of Germany's Federal Environment Agency (UBA), Jochen Flasbarth, is calling for the government to improve CO2 reduction programs to achieve targets. http://www.spiegel.de/international/germany/0,1518,644677,00.html   GERMAN RENEWABLE ENERGY TO-DATE   Germany announced it had 17% of its electrical energy from renewables in 2010; it was 6.3% in 2000. The sources were 6.2% wind, 5.5% biomass, 3.2% hydro and 2.0% solar. Electricity consumption in 2010 was 603 TWh (production) - 60 TWh (assumed losses) = 543 TWh http://www.volker-quaschning.de/datserv/ren-Strom-D/index_e.php  
  • Wind: At the end of 2010, about 27,200 MW of onshore and offshore wind turbines was installed in Germany at a capital cost of about $50 billion. Wind energy produced was 37.5 TWh, or 6.2% of total production. The excess cost of the feed-in-tariff energy bought by utilities and rolled into electricity costs of rate payers was about $50 billion during the past 11 years.   Most wind turbines are in northern Germany. When wind speeds are higher wind curtailment of 15 to 20 percent takes place because of insufficient transmission capacity and quick-ramping gas turbine plants. The onshore wind costs the Germany economy about 12 eurocent/kWh and the offshore wind about 24 eurocent/kWh. The owners of the wind turbines are compensated for lost production.   The alternative to curtailment is to “sell” the energy at European spot prices of about 5 eurocent/kWh to Norway and Sweden which have significant hydro capacity for balancing the variable wind energy; Denmark has been doing it for about 20 years.   As Germany is very marginal for onshore wind energy (nation-wide onshore wind CF 0.167) and nearly all of the best onshore wind sites have been used up, or are off-limits due to noise/visual/environmental impacts, most of the additional wind energy will have to come from OFFSHORE facilities which produce wind energy at about 2 to 3 times the cost of onshore wind energy. http://theenergycollective.com/willem-post/61774/wind-energy-expensive
  • Biomass: At the end of 2010, about 5,200 MW of biomass was installed at a capital cost of about $18 billion. Biomass energy produced was 33.5 TWh, or 5.5% of production. Plans are to add 1,400 MW of biomass plants in future years which, when fully implemented, would produce about 8.6 TWh/yr.   Solar: At the end of 2010, about 17,320 MW of PV solar was installed in Germany at a capital cost of about $100 billion. PV solar energy produced was 12 TWh, or 2% of total production. The excess cost of the feed-in-tariff energy bought by utilities and rolled into the electricity costs of rate payers was about $80 billion during the past 11 years.   Most solar panels are in southern Germany (nation-wide solar CF 0.095). When skies are clear, the solar production peaks at about 7 to 10 GW. Because of insufficient capacity of transmission and quick-ramping gas turbine plants, and because curtailment is not possible, part of the solar energy, produced at a cost to the German economy of about 30 to 50 eurocent/kWh is “sold” at European spot prices of about 5 eurocent/kWh to France which has significant hydro capacity for balancing the variable solar energy. http://theenergycollective.com/willem-post/46142/impact-pv-solar-feed-tariffs-germany  
  • Hydro: At the end of 2010, about 4,700 MW of hydro was installed. Hydro energy produced was 19.5 TWh, or 3.2% of production. Hydro growth has been stagnant during the past 20 years. See below website.   As it took about $150 billion of direct investment, plus about $130 billion excess energy cost during the past 11 years to achieve 8.2% of total production from solar and wind energy, and assuming hydro will continue to have little growth, as was the case during the past 20 years (almost all hydro sites have been used up), then nearly all of the renewables growth by 2020 will be mostly from wind, with the remainder from solar and biomass. http://www.renewableenergyworld.com/rea/news/article/2011/03/new-record-for-german-renewable-energy-in-2010??cmpid=WNL-Wednesday-March30-2011   Wind and Solar Energy Depend on Gas: Wind and solar energy is variable and intermittent. This requires quick-ramping gas turbine plants to operate at part-load and quickly ramp up with wind energy ebbs and quickly ramp down with wind energy surges; this happens about 100 to 200 times a day resulting in increased wear and tear. Such operation is very inefficient for gas turbines causing them to use extra fuel/kWh and emit extra CO2/kWh that mostly offset the claimed fuel and CO2 reductions due to wind energy. http://theenergycollective.com/willem-post/64492/wind-energy-reduces-co2-emissions-few-percent  
  • Wind energy is often sold to the public as making a nation energy independent, but Germany will be buying gas mostly from Russia supplied via the newly constructed pipeline under the Baltic Sea from St. Petersburg to Germany, bypassing Poland.   GERMANY WITHOUT NUCLEAR ENERGY   A study performed by The Breakthrough Institute concluded to achieve the 40% CO2 emissions reduction target and the decommissioning of 21,400 MW of nuclear power plants by 2022, Germany’s electrical energy mix would have to change from 60% fossil, 23% nuclear and 17% renewables in 2010 to 43% fossil and 57% renewables by 2020. This will require a build-out of renewables, reorganization of Europe’s electric grids (Europe’s concurrence will be needed) and acceleration of energy efficiency measures.   According to The Breakthrough Institite, Germany would have to reduce its total electricity consumption by about 22% of current 2020 projections AND achieve its target for 35% electricity generated from renewables by 2020. This would require increased energy efficiency measures to effect an average annual decrease of the electricity consumption/GDP ratio of 3.92% per year, significantly greater than the 1.47% per year decrease assumed by the IEA's BAU forecasts which is based on projected German GDP growth and current German efficiency policies.
  • The Breakthrough Institute projections are based on electricity consumption of 544  and 532 TWh  in 2008 and 2020, respectively; the corresponding production is 604 TWh in 2008 and 592 TWh in 2020.   http://thebreakthrough.org/blog//2011/06/analysis_germanys_plan_to_phas-print.html http://www.iea.org/textbase/nppdf/free/2007/germany2007.pdf   Build-out of Wind Energy: If it is assumed the current wind to solar energy ratio is maintained at 3 to 1, the wind energy build-out will be 80% offshore and 20% onshore, and the electricity production will be 592 TWh, then the estimated capital cost of the offshore wind turbines will be [{0.57 (all renewables) - 0.11 (assumed biomass + hydro)} x 592 TWh x 3/4] x 0.8 offshore/(8,760 hr/yr x average CF 0.35) = 0.0533 TW offshore wind turbines @ $4 trillion/TW = $213 billion and of the onshore wind turbines will be [{0.57 (all renewables) - 0.11 (assumed biomass + hydro)} x 592 TWh x 3/4] x 0.2 onshore/(8,760 hr/yr x average CF 0.167) = 0.279 TW of wind turbines @ $2 trillion/TW = $56 billion, for a total of $272 billion. The feed in tariff subsidy for 9 years, if maintained similar to existing subsidies to attract adequate capital, will be about $150 billion offshore + $50 billion onshore, for a total of $200 billion.    
  • Note: The onshore build-out will at least double Germany’s existing onshore wind turbine capacity, plus required transmission systems; i.e., significant niose, environmental and visual impacts over large areas.   Recent studies, based on measured, real-time, 1/4-hour grid operations data sets of the Irish, Colorado and Texas grids, show wind energy does little to reduce CO2 emissions. Such data sets became available during the past 2 to 3 years. Prior studies, based on assumptions, estimates, modeling scenarios, and statistics, etc., significantly overstate CO2 reductions.  http://theenergycollective.com/willem-post/64492/wind-energy-reduces-co2-emissions-few-percent   Build-out of PV Solar Energy: The estimated capital cost of the PV solar capacity will be [{0.57 (all renewables) - 0.11 (assumed biomass + hydro)} x 592 TWh x 1/4]/(8,760 hr/yr x average CF 0.095) = 0.082 TW @ $4.5 trillion/TW = $369 billion. The feed in tariff subsidy, if maintained similar to existing subsidies to attract adequate capital, will be about $250 billion.   Reorganizating Electric Grids: For GW reasons, a self-balancing grid system is needed to minimize CO2 emissions from gas-fired CCGT balancing plants. One way to implement it is to enhance the interconnections of the national grids with European-wide HVDC overlay systems (owning+O&M costs, including transmission losses), and with European-wide selective curtailment of wind energy, and with European-wide demand management and with pumped hydro storage capacity. These measures will reduce, but not eliminate, the need for balancing energy, at greater wind energy penetrations during high-windspeed weather conditions, as frequently occur in Iberia (Spain/Portugal).  
  • European-wide agreement is needed, the capital cost will be in excess of $150 billion and the adverse impacts on quality of life (noise, visuals, psychological), property values and the environment will be significant over large areas.    Other Capital Costs: The capacity of the quick-ramping CCGT balancing plants was estimated at 25,000 MW; their capital cost is about 25,000 MW x $1,250,000/MW = $31.3 billion. The capital costs of decommissioning and restoring the sites of the 23 nuclear plants will be about $23 billion.   Increased Energy Efficiency: Increased energy efficiency would be more attractive than major build-outs of renewables, because it provides the quickest and biggest "bang for the buck", AND it is invisible, AND it does not make noise, AND it has minimal environmental impact, AND it usually reduces at least 3 times the CO2 per invested dollar, AND it usually creates at least 3 times the jobs per invested dollar, AND it usually creates at least 3 times the energy reduction per invested dollar, AND it does all this without public resistance and controversy.   Rebound, i.e., people going back to old habits of wasting energy, is a concept fostered by the PR of proponents of conspicuous consumption who make money on such consumption. People with little money love their cars getting 35-40 mpg, love getting small electric and heating bills. The rebound is mostly among people who do not care about such bills.
  • A MORE RATIONAL APPROACH   Global warming is a given for many decades, because the fast-growing large economies of the non-OECD nations will have energy consumption growth far outpacing the energy consumption growth of the slow-growing economies of the OECD nations, no matter what these OECD nations do regarding reducing CO2 emissions of their economies.   It is best to PREPARE for the inevitable additional GW by requiring people to move away from flood-prone areas (unless these areas are effectively protected, as in the Netherlands), requiring new  houses and other buildings to be constructed to a standard such as the Passivhaus standard* (such buildings stay cool in summer and warm in winter and use 80 to 90 percent less energy than standard buildings), and requiring the use of new cars that get at least 50 mpg, and rearranging the world's societies for minimal energy consumption; making them walking/bicycling-friendly would be a good start.   If a nation, such as the US, does not do this, the (owning + O&M) costs of its economy will become so excessive (rising resource prices, increased damage and disruptions from weather events) that its goods and services will become less competitive and an increasing percentage of its population will not be able to afford a decent living standard in such a society.   For example: In the US, the median annual household income (inflation-adjusted) was $49,445, a decline of 7% since 2000. As the world’s population increases to about 10 billion by 2050, a triage-style rationing of resources will become more prevalent. http://www.usatoday.com/news/nation/story/2011-09-13/census-household-income/50383882/1
  • * A 2-year-old addition to my house is built to near-Passivhaus standards; its heating system consists of a thermostatically-controlled 1 kW electric heater, set at 500 W, that cycles on/off on the coldest days for less than 100 hours/yr. The addition looks inside and out entirely like standard construction. http://theenergycollective.com/willem-post/46652/reducing-energy-use-houses
  •  
    Excellent, lengthy article , lots of data
D'coda Dcoda

New International Report Shreds Japan's Carefully Constructed Fukushima Scenario [04Nov11] - 0 views

  • Japan’s six reactor Fukushima Daichi nuclear complex has inadvertently become the world’s bell-weather poster child for the inherent risks of nuclear power ever since the 11 March Tohoku offshore earthquake, measuring 9.0 on the Richter scale, triggered a devastating tsunami that effectively destroyed the complex. Ever since, specialists have wrangled about how damaging the consequences of the earthquake and subsequent tsunami actually were, not only for the facility but the rest of the world. The Fukushima Daichi complex was one of the 25 largest nuclear power stations in the world and the Fukushima I reactor was the first GE designed nuclear plant to be constructed and run entirely by the Tokyo Electric Power Company, or TEPCO.
  • in the aftermath of the disaster, both TEPCO and the Japanese government were at pains to minimize the disaster’s consequences, hardly surprising given the country’s densely populated regions. But now, an independent study has effectively demolished TEPCO and the Japanese government’s carefully constructed minimalist scenario. Mainichi news agency reported that France’s l’Institut de Radioprotection et de Surete Nucleaire (Institute for Radiological Protection and Nuclear Safety, or IRSN) has issued a recent report stating that the amount of radioactive cesium-137 that entered the Pacific after 11 March was probably nearly 30 times the amount stated by Tokyo Electric Power Co. in May.
  • According to IRSN, the amount of the radioactive isotope cesium-137 that flowed into the ocean from the Fukushima Daiichi nuclear plant between March 21 and mid-July reached an estimated 27.1 quadrillion becquerels. Why should this matter? Aren’t the Japanese authorities on top of the issue? Cesium-137 can cause burns, acute radiation sickness and even death at sufficient doses. It can contaminate food and water and, if ingested, gets distributed around the body, where it builds up in soft tissues, such as muscles. Over time, it is expelled from the body in urine. And where might tingested cesium-137 come from?
  • ...2 more annotations...
  • Seafood, anyone? One of the problems of the release of radioactivity into a maritime environment is that is represents a cumulative food chain, from plankton consumed by larger organisms, as evidenced by mercury contamination of swordfish, none of whom swam around ingesting globules of the silvery metal. IRSN estimated that of the total amount, 82 percent had flowed into the sea by 8 April, adding that the Pacific was polluted at exceptional speed because the devastated Fukushima Daichi nuclear power plant (NPP) is situated in a coastal area with strong currents. If the IRSN report contained any good news, it was that the impact of the cesium-137 contamination on marine life in remote waters is likely to lessen later this year.  
  • The radioactive silver lining? Radioactive cesium-137 has a half life of roughly 30 years, so if the IRSN estimates are accurate, then my 2041 the Pacific’s aquatic life will only be subjected to a mere 13.55 quadrillion becquerels of radiation. This is not to suggest that Japanese will shortly be keeling over from consuming their sushi but rather, that for better or for worse, a significant amount of cesium 137 has entered the Pacific’s aquatic environment, and the long-term effects of low-level exposure on the population consuming Pacific seafood are unknown. Numerous tests since 1945, when before it  was believed that only massive bursts of radiation were hazardous to human health, have documented the insidious effects of long-term, low level radiological exposure to humans. Fukushima sits at the nexus where the Kuroshio Current, running northward off the eastern coast of Japan, collides with the cold subarctic Oyashio Current that flows southwards, circulating counterclockwise along the western North Pacific Ocean. Their interaction produces the North Pacific Current, a slow warm water eastwards flowing current between 40 and 50 degrees north in the Pacific Ocean. In the eastern northern Pacific, the North Pacific Current divides into the southern flowing California Current and the northern Alaska Current.
D'coda Dcoda

ACPD - Abstract - Xenon-133 and caesium-137 releases into the atmosphere from the Fukus... - 0 views

  • A. Stohl1, P. Seibert2, G. Wotawa3, D. Arnold2,4, J. F. Burkhart1, S. Eckhardt1, C. Tapia5, A. Vargas4, and T. J. Yasunari61NILU – Norwegian Institute for Air Research, Kjeller, Norway2Institute of Meteorology, University of Natural Resources and Life Sciences, Vienna, Austria3Central Institute for Meteorology and Geodynamics, Vienna, Austria4Institute of Energy Technologies (INTE), Technical University of Catalonia (UPC), Barcelona, Spain5Department of Physics and Nucelar Engineering (FEN),Technical University of Catalonia (UPC), Barcelona, Spain6Universities Space Research Association, Goddard Earth Sciences and Technology and Research, Columbia, MD 21044, USAAbstract. On 11 March 2011, an earthquake occurred about 130 km off the Pacific coast of Japan's main island Honshu, followed by a large tsunami. The resulting loss of electric power at the Fukushima Dai-ichi nuclear power plant (FD-NPP) developed into a disaster causing massive release of radioactivity into the atmosphere. In this study, we determine the emissions of two isotopes, the noble gas xenon-133 (133Xe) and the aerosol-bound caesium-137 (137Cs), which have very different release characteristics as well as behavior in the atmosphere. To determine radionuclide emissions as a function of height and time until 20 April, we made a first guess of release rates based on fuel inventories and documented accident events at the site.
  • This first guess was subsequently improved by inverse modeling, which combined the first guess with the results of an atmospheric transport model, FLEXPART, and measurement data from several dozen stations in Japan, North America and other regions. We used both atmospheric activity concentration measurements as well as, for 137Cs, measurements of bulk deposition. Regarding 133Xe, we find a total release of 16.7 (uncertainty range 13.4–20.0) EBq, which is the largest radioactive noble gas release in history not associated with nuclear bomb testing. There is strong evidence that the first strong 133Xe release started very early, possibly immediately after the earthquake and the emergency shutdown on 11 March at 06:00 UTC. The entire noble gas inventory of reactor units 1–3 was set free into the atmosphere between 11 and 15 March 2011. For 137Cs, the inversion results give a total emission of 35.8 (23.3–50.1) PBq, or about 42% of the estimated Chernobyl emission. Our results indicate that 137Cs emissions peaked on 14–15 March but were generally high from 12 until 19 March, when they suddenly dropped by orders of magnitude exactly when spraying of water on the spent-fuel pool of unit 4 started. This indicates that emissions were not only coming from the damaged reactor cores, but also from the spent-fuel pool of unit 4 and confirms that the spraying was an effective countermeasure. We also explore the main dispersion and deposition patterns of the radioactive cloud, both regionally for Japan as well as for the entire Northern Hemisphere. While at first sight it seemed fortunate that westerly winds prevailed most of the time during the accident, a different picture emerges from our detailed analysis
  • Exactly during and following the period of the strongest 137Cs emissions on 14 and 15 March as well as after another period with strong emissions on 19 March, the radioactive plume was advected over Eastern Honshu Island, where precipitation deposited a large fraction of 137Cs on land surfaces. The plume was also dispersed quickly over the entire Northern Hemisphere, first reaching North America on 15 March and Europe on 22 March. In general, simulated and observed concentrations of 133Xe and 137Cs both at Japanese as well as at remote sites were in good quantitative agreement with each other. Altogether, we estimate that 6.4 TBq of 137Cs, or 19% of the total fallout until 20 April, were deposited over Japanese land areas, while most of the rest fell over the North Pacific Ocean. Only 0.7 TBq, or 2% of the total fallout were deposited on land areas other than Japan.Discussion Paper (PDF, 6457 KB)   Supplement (13 KB)   Interactive Discussion (Open, 0 Comments)   Manuscript under review for ACP   
D'coda Dcoda

With clean-up around Chernobyl abandoned, what can Japan learn from 1986 disaster[25Apr12] - 0 views

  • April 26 will mark the 26th anniversary of the worst case of nuclear contamination in history: the 1986 Chernobyl disaster. Since the meltdowns at the Fukushima No. 1 nuclear plant in March last year, the Japanese government has shown interest in decontamination and other projects around Chernobyl as a reference point for efforts to deal with its own nuclear disaster. However in northern Ukraine, where the radioactive husk of the former Soviet power station lies, large-scale decontamination work has been abandoned as largely ineffective, and disaster refugees are no closer to going home.
D'coda Dcoda

Returnees fear Fukushima's invisible touch [08Dec11] - 0 views

  • MINAMISOMA, Japan - The lugubrious notes of Silent Night wafted from an outdoor sound system on the near-empty main street to the station of this coastal city on the northern edge of the 20-kilometer "exclusion zone" around the Fukushima Daiichi nuclear power plant.
  • At a factory that salvages old and wrecked cars just outside the barriers on the road down the coast to the plant, a digital display in the office flashed the numbers -0.10 and 0.22 - highs and lows of micro-sieverts. "That’s well within the safety limit," a young woman in the factory's overseas marketing department assured me. "We are safe here." For all such assurances, though, nobody really believes bad stuff <a href='http://asianmedia.com/GAAN/www/delivery/ck.php?n=a53e495a&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'> <img src='http://asianmedia.com/GAAN/www/delivery/avw.php?zoneid=36&cb=INSERT_RANDOM_NUMBER_HERE&n=a53e495a' border='0' alt=''></a>  is no longer floating through the clear cold air or lapping up on the innocent looking shores beyond the concrete breakwater over which 40-foot waves surged that day, wiping out an entire district down the slope from the factory.
  • Radioactive substances come from the ground, from the river bottom."
  • ...7 more annotations...
  • Uncertain reports daily fuel the fears. One day people hear of a leak through which radioactive water is pouring into the sea, poisoning the fish that are a staple of everyone's diet. Next, there are stories of emissions of radioactive xenon gas and then a reading of radioactive cesium in powdered milk - enough for the Meiji Company to recall 400,000 cans of it this week "so people can feel their infants are safe".
  • At City Hall, Koshin Ogai, a young tax official, shared his fears. Ogai, originally from Osaka in western Japan, moved here a few years ago after marrying a local woman but sent his wife and their two children to his parents after explosions at the Fukushima first spread the fear of radiation. "I don't permit them to come back," he said. "I don't think the record here is safe." But what about all those assurances about the levels of radioactivity having fallen well within safe limits, I asked him. His answer was prompt. "The government is a liar." And how, I pressed, could he as a government employee, talk so frankly? "I work for the local government," he said, not the national government." One reason Ogai does not hesitate to express such views is that his top boss, Mayor Katsunobu Sakurai, gained fame after the tsunami for pleading with the government to assist with food and medicine.
  • By now the city is on its way to partial recovery. Shops have slowly come to life, schools reopened in October and rail services resumed this month going north. Encouraging though such signs may appear, they suggest only partial recovery. Business is slow. Only a few people drift in and out of food stores. A number of restaurants remain closed or on limited hours. As for the railroad, the trains are not expected for many years to go south to Tokyo, once a three-hour run through a densely populated region. "The railroad fears radioactive substances passing by the Fukushima plant," said one person to whom I spoke. "They can't enter the area."
  • Going north, the trains can only go as far as Soma, about 30 miles up the coast. Beyond that, on the way to the important port city of Sendai, the tsunami tore up the tracks
  • Mayor Sakurai is still asking volunteers to help while accusing central government officials and contractors of moving too slowly. People say TEPCO, the Tokyo Electric Power Company, is slow to provide compensation.
  • The lobby of the City Hall now is crowded with people looking for relief payments while Ogai fends off complaints about taxes the city is still levying on residents.
  • Ogai may be more concerned about the expense of monthly flights from Sendai to Osaka to see his family. "I request compensation from TEPCO. I often call the call center of TEPCO." The operator says, 'I am not sure'," said Ogai. "That is always the answer" - about as vague as responses to when TEPCO will finish cleaning up the nuke plant or what will be the impact of radiation on people 10, 20 or 30 years from now.
1 - 20 of 54 Next › Last »
Showing 20 items per page