Rapid urbanization and heavy industrialization generally result in serious aerosol pollution. Contrary to this conventional wisdom, Zhanjiang, one industrial city in the southernmost point of the Chinese mainland, is not accompanied by aerosol pollution and its air quality index always ranks high compared to other cities in China. To investigate this contradiction, 72-hour total suspended particles (TSPs) and water-soluble inorganic ions (WSIIs; including Mg2+, Ca2+, K+, Na+, NH4+, Cl-, NO3-, and SO42-) were collected in Zhanjiang, China, from November 2018 to November 2019. The relative humidity (RH) was higher than 80% throughout the whole year in Zhanjiang. However, the TSPs and WSIIs were not correlated with RH, indicating that RH can increase the particle size, but this had a minor impact on the dry deposition rate. The larger particles induced by RH were easily captured by wet precipitation, leading to a seasonal pattern with higher TSP and WSII mass concentrations during the dry and cool season and lower values during the hot and rainy season. This seasonal pattern and high aerosol acidity indicate that TSPs, WSIIs, and acidic gaseous precursors from the local sources were preferentially scavenged by the abundant rainfall and high precipitation frequency. Principal component analysis (PCA) results suggest that relatively clean marine emissions and secondary aerosols were the most important sources of TSPs and WSIIs. Our results indicate that the inconsistency between the heavy industrial activities and excellent air quality in Zhanjiang may be related to the high precipitation frequency (63%) and the marine dilution effect (27%).
Presents an emissions inventory based on scenarios for growth in marine vessel traffic in the U.S. Arctic in 2025. At current fuel sulfur levels, pollutant emissions from ships in the region could increase 150%-600%.
New data presented by researchers at Lund University and others in the journal Oceanologia show that the air along the coasts is full of hazardous nanoparticles from sea traffic. Almost half of the measured particles stem from sea traffic emissions, while the rest is deemed to be mainly from cars but also biomass combustion, industries and natural particles from the sea.
New data presented by researchers at Lund University and others in the journal Oceanologia show that the air along the coasts is full of hazardous nanoparticles from sea traffic. Almost half of the measured particles stem from sea traffic emissions, while the rest is deemed to be mainly from cars but also biomass combustion, industries and natural particles from the sea.
After over 40 years of providing Search and Rescue' operations from RNAS Culdrose, the four duty crew of 771 Naval Air Squadron have completed their last 24 hour shift.
With the Aurora Australis still aground near Mawson research station, the Australian Antarctic Division is receiving assistance from the US Antarctic program to transport expeditioners who were waiting at Davis research station to return home aboard the icebreaker after the summer season.
Two rubber boats, sailing in poor conditions in the Mediterranean Sea, were spotted in the morning by the Spanish EUNAVFOR MED operation Sophia's air asset, the P3 Orion.
Resident groups mounting a high court challenge to plans for a new wharf in Greenwich say diesel emissions from docked liners would breach legal limits.
Resident groups mounting a high court challenge to plans for a new wharf in Greenwich say diesel emissions from docked liners would breach legal limits.
President Donald Trump will meet Saturday with Chinese President Xi Jinping in Buenos Aires. | Amilcar Orfali/Getty Images South China Morning Post Language used in statements issued after the two leaders meet will offer clues as to the temperature in the room - so what does it all mean? By TEDDY NG I SOUTH CHINA…
BUENOS AIRES - President Trump and his Mexican and Canadian counterparts sought to put the acrimony of the past two years behind them on Friday as they signed a new trade agreement governing hundreds of billions of dollars in commerce that underpins their mutually dependent economies. Meeting for the first time since the revised North…
If ship hulls were coated with special high-tech air trapping materials, up to one percent of global CO2 emissions could be avoided. This is the conclusion reached by scientists from the University of Bonn together with colleagues from St. Augustin and Rostock in a recent study. According to the study, ships could save up to 20 percent of fuel as a result of reduced drag. If so-called antifouling effects are also considered, such as the reduced growth of organisms on the hull, the reduction can even be doubled. The study has now been published in the journal "Philosophical Transactions A".
A container ship leaves a trail of white clouds in its wake that can linger in the air for hours. This puffy line is not just exhaust from the engine, but a change in the clouds that's caused by small airborne particles of pollution.
Cruise lines are transforming the modern fleet with new technologies and designs to protect the oceans, air and destinations that millions of cruise passengers enjoy each year. Cruise Lines International Association (CLIA) showcases cruise lines' technologies that sustainably reduce the industry's environmental footprint.