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Tsinghua study finds China’s actions have cut PM2.5 concentrations 21.5% from 2013-2015; PM2.5-related mortality down 9.1%

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Air pollution in China, especially in mega-metropolitan areas, is a matter of concern due to its impact on public health; outdoor PM 2.5 million deaths in China in 2013. pollution reduced by 9.1% concentration is due to the non-linear relationship between pollution and mortality in current exposure-response functions.

2013 186
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Study finds household and outdoor air pollution contributes to more than 5.5 million premature deaths worldwide per year

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New research shows that household (indoor) and outdoor air pollution contribute to more than 5.5 In the context of the Global Burden of Disease 2013 study ( earlier post ), researchers from Canada, the United States, China and India quantified air pollution levels and attributable health impacts for 188 countries for the period 1990-2013.

Pollution 150
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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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Researchers from MIT’s Laboratory for Aviation and the Environment have concluded that ground-level PM 2.5 Steven Barrett, an assistant professor of aeronautics and astronautics at MIT, and colleagues have published their results in the journal Atmospheric Environment. Source: MIT. Click to enlarge. —Caiazzo et al.

MIT 378
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Researchers identify new nitrated PAH compounds from combustion that are hundreds of times more mutagenic than parent PAHs

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These new compounds were not previously known to exist, and raise additional concerns about the health impacts of heavily-polluted urban air or dietary exposure. PAHs form naturally as the result of almost any type of combustion, from a wood stove to an automobile engine, cigarette or a coal-fired power plant. Dashwood, and Staci L.

Pollution 275
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Researchers urge Chinese government to encourage bikes, buses and rail over cars and commercial vehicles due to emissions and health concerns

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In China in 2013, The transport sector consumed 348.19 million tons of coal equivalent (tce), which resulted in serious air pollution. Chinese government has implemented several transport policies to deal with this challenge and to encourage residents to change their travel behaviors to mitigate severe air pollution.

Chinese 150
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ORNL study identifies more biopathways for formation of toxic methylmercury

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Mercury is a toxin that spreads around the globe mainly through the burning of coal, other industrial uses, and natural processes such as volcanic eruptions, and various forms of mercury are widely found in sediments and water. Once we understand the process, we can begin to form solutions to combat mercury pollution. —Hu et al.

Mercury 186
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Georgia Tech study finds MD electric urban delivery trucks have cost advantages over diesel in some conditions; relative benefits depend on numerous factors

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These medium-duty postal and parcel delivery trucks operate in an urban environment in which a significant portion of their trip time is spent idling, resulting in low fuel economy. Vehicles operated in states heavily dependent on coal for producing electricity showed higher emissions. MJ/t·km and 0.63 kgCO 2 e/t·km).

Georgia 268