Title: UCB Milk Sampling Results
Source: University of California Berkeley Department of Nuclear Engineering
Date: 1/14/2012 (9:40am)
Over EPA limit: Cesium levels in San Francisco area milk now higher than 6 months ago [... - 0 views
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By integrating all of the milk data we have collected since March 11, we can estimate the total effective dose equivalent (TEDE) one could have received from exposure to fission product isotopes in milk to date. For someone drinking milk at the relatively high rate of one gallon per week, the TEDE could be nearly 1 microsievert, or the total effective dose equivalent for only 12 minutes on an airplane flight or 3.7 hours of the average person’s background exposure from natural sources of radiation.
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Pasteurized, Homogenized Milk from the San Francisco Bay Area with Best By Date of 12/29/2011 Cs-134: 0.068 Becquerels/liter (Bq/l) ±0.011 [MDA=0.044] Cs-137: 0.075 Bq/l ±0.015 [MDA=0.052] Total cesium is .143 Bq/l, or 3.87 picocuries/l (pCi/l) (1 Bq = 27.1 pCi). The EPA Maximum Contaminant Level for radioactive cesium in milk is 3 pCi/l:
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The High Cost of Freedom from Fossil Fuels [10Nov11] - 0 views
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During the 1970s and 1980s, at the peak of the nuclear reactor construction, organized groups of protestors mounted dozens of anti-nuke campaigns. They were called Chicken Littles, the establishment media generally ignored their concerns, and the nuclear industry trotted out numerous scientists and engineers from their payrolls to declare nuclear energy to be safe, clean, and inexpensive energy that could reduce America’s dependence upon foreign oil. Workers at nuclear plants are highly trained, probably far more than workers in any other industry; operating systems are closely regulated and monitored. However, problems caused by human negligence, manufacturing defects, and natural disasters have plagued the nuclear power industry for its six decades. It isn’t alerts like what happened at San Onofre that are the problem; it’s the level 3 (site area emergencies) and level 4 (general site emergencies) disasters. There have been 99 major disasters, 56 of them in the U.S., since 1952, according to a study conducted by Benjamin K. Sovacool Director of the Energy Justice Program at Institute for Energy and Environment One-third of all Americans live within 50 miles of a nuclear plant.
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At Windscale in northwest England, fire destroyed the core, releasing significant amounts of Iodine-131. At Rocky Flats near Denver, radioactive plutonium and tritium leaked into the environment several times over a two decade period. At Church Rock, New Mexico, more than 90 million gallons of radioactive waste poured into the Rio Puerco, directly affecting the Navajo nation. In the grounds of central and northeastern Pennsylvania, in addition to the release of radioactive Cesium-137 and Iodine-121, an excessive level of Strontium-90 was released during the Three Mile Island (TMI) meltdown in 1979, the same year as the Church Rock disaster. To keep waste tanks from overflowing with radioactive waste, the plant’s operator dumped several thousand gallons of radioactive waste into the Susquehanna River. An independent study by Dr. Steven Wing of the University of North Carolina revealed the incidence of lung cancer and leukemia downwind of the TMI meltdown within six years of the meltdown was two to ten times that of the rest of the region.
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Although nuclear plant security is designed to protect against significant and extended forms of terrorism, the NRC believes as many as one-fourth of the 104 U.S. nuclear plants may need upgrades to withstand earthquakes and other natural disasters, according to an Associated Press investigation. About 20 percent of the world’s 442 nuclear plants are built in earthquake zones, according to data compiled by the International Atomic Energy Agency. The NRC has determined that the leading U.S. plants in the Eastern Coast in danger of being compromised by an earthquake are in the extended metropolitan areas of Boston, New York City, Philadelphia, Pittsburgh, and Chattanooga. Tenn. The highest risk, however, may be California’s San Onofre and Diablo Canyon plants, both built near major fault lines. Diablo Canyon, near San Luis Obispo, was even built by workers who misinterpreted the blueprints.
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U.S. nuke regulators weaken safety rules [20Jun11] - 0 views
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Federal regulators have been working closely with the nuclear power industry to keep the nation's aging reactors operating within safety standards by repeatedly weakening standards or simply failing to enforce them, an investigation by The Associated Press has found.Officials at the U.S. Nuclear Regulatory Commission regularly have decided original regulations were too strict, arguing that safety margins could be eased without peril, according to records and interviews.The result? Rising fears that these accommodations are undermining safety -- and inching the reactors closer to an accident that could harm the public and jeopardize nuclear power's future.
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Examples abound. When valves leaked, more leakage was allowed -- up to 20 times the original limit. When cracking caused radioactive leaks in steam generator tubing, an easier test was devised so plants could meet standards.Failed cables. Busted seals. Broken nozzles, clogged screens, cracked concrete, dented containers, corroded metals and rusty underground pipes and thousands of other problems linked to aging were uncovered in AP's yearlong investigation. And many of them could escalate dangers during an accident.
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Despite the problems, not a single official body in government or industry has studied the overall frequency and potential impact on safety of such breakdowns in recent years, even as the NRC has extended dozens of reactor licenses.Industry and government officials defend their actions and insist no chances are being taken. But the AP investigation found that with billions of dollars and 19 percent of America's electricity supply at stake, a cozy relationship prevails between industry and the NRC.Records show a recurring pattern: Reactor parts or systems fall out of compliance. Studies are conducted by industry and government, and all agree existing standards are "unnecessarily conservative."
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OpEdNews - Article: There and Back Again: Sobering Thoughts about the Nuclear Madness W... - 0 views
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Even though she got zero attention here in the U.S., Lauren Moret's important message was heard loud and clear around the world on the Internet:
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"Fukushima's radiation affects thousands of miles across the ocean! The west coast of North America is thousands of miles across the vast Pacific Ocean, a long way from Fukushima Daiichi and the radioactive solids, liquids, and gases being released daily and recklessly to poison both near and far. Already we are seeing the effects in North America. Air filters from cars in Seattle have been analyzed for hot particles and indicate that Seattle residents are inhaling 5 hot particles a day, in Tokyo it is 10 hot particles a day, in Fukushima Prefecture it is 30-40 times higher -- 300-400 hot particles a day. Hot particles and alpha emitters such as Uranium and Plutonium have not even been mentioned by the government or TEPCO, nor has their contribution to total radiation released been considered. Alpha particles are biologically 20 times more damaging than beta particles. "Iodine 131 in drinking water in San Francisco was reported by UC Berkeley to be 18,100% times higher than the EPA drinking water standard, yet the US government quit measuring it. Infant mortality in Berkeley and other west coast cities was reported by Dr. Janette Sherman to have increased 35% since March 11, after the Fukushima disaster. The babies are the first to die. Infant mortality in Philadelphia, PA. Where the highest Iodine 131 levels in drinking water measured in the US have been reported, has increased 45 percent since March 11. People on the west coast of the United States and even in Arizona are reporting a metallic taste in their mouths -- an indication of radioactive particles in the air as in Japan."
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"On the night of June 14, a nuclear incident occurred in the Reactor 3 building in the spent fuel pool when huge bursts of gamma ray fluorescence lit up the night sky and turned the reactor building as bright as the sun, indicating the spent fuel rods and melted uranium and plutonium were boiling off, vaporized along with the rest of the fission products.
Cesium nearly doubles over past month in Bay Area milk - Now well above EPA's maximum c... - 0 views
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Above EPA’s Maximum Contaminant Level “EPA lumps these gamma and beta emitters together under one collective MCL [Maximum Contaminant Level], so if you’re seeing cesium-137 in your milk or water, the MCL is 3.0 picocuries per liter; if you’re seeing iodine-131, the MCL is 3.0; if you’re seeing cesium-137 and iodine-131, the MCL is still 3.0.” -Forbes.com The 9/29 milk sample contains a total of 0.181 Bq/L of radioactive cesium (4.9 picocuries per liter), or more than 160% of the EPA’s Maximum Contaminant Level.
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UCB Milk Sampling Results, Nuclear Engineering Department At UC Berkeley, September 27, 2011: Pasteurized, homogenized milk obtained from a San Francisco Bay Area organic dairy Best By Date of 08/22/2011: Cs134 @ 0.047 Becquerels/liter (Bq/L) Cs137 @ 0.052 Bq/L Best By Date of 09/29/2011: Cs134 @ 0.080 Bq/L Cs137 @ 0.101 Bq/L
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