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Harvard/Nanjing study: China’s war on PM2.5 pollution is causing more severe ozone pollution

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In early 2013, the Chinese government declared a war on air pollution and began instituting stringent policies to regulate the emissions of PM 2.5. Paulson School of Engineering and Applied Sciences (SEAS) and the Nanjing University of Information Science & Technology (NUIST), found that while PM 2.5 Ke Li, Daniel J.

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Study: ozone levels higher across China than in other countries tracking the air pollutant

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2017 for one ozone metric. 2017 are included. We find that in the most populous urban regions of Eastern and Central China, there are more than 60 days in a calendar year with surface ozone levels exceeding the Chinese national ozone air quality standard. —Lin Zhang of Peking University, lead author.

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China study connects ozone pollution to cardiovascular health

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Exposure to ozone, long associated with impaired lung function, is also connected to health changes that can cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults. They monitored indoor and outdoor ozone levels, along with other pollutants. 2017.2842.

Ozone 170
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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 pollution reduced by 9.1% Our study marks the first estimates of the impact of this stringent action plan on pollution levels and mortality rates from 2013 to 2015. —Zheng et al.

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New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

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in collaboration with scientists at the University of York’s Stockholm Environment Institute (SEI); University of Colorado; and the International Institute for Applied Systems Analysis, assessed 30 studies of vehicle emissions under real-world driving conditions in 11 major vehicle markets representing 80% of new diesel vehicle sales in 2015.

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Xiamen University team assesses reasons for purchasing EVs in first-tier cities in China; smog a major factor

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A team of researchers at Xiamen University in China has examined the factors influencing electric vehicle uptake in major Chinese cities. —Lin and Wu (2017). In their study, the team found that price acceptability and concerns about smog were the most prominent factors affecting the purchase decision. 2017.10.026.

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Study finds vehicles more important source of urban atmospheric ammonia than farms

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Vehicle tailpipes are a more important source of ammonia’s contribution to urban air pollution than is agriculture, according to a study by researchers from the US and China. ppbv/ppmv) to the US cities, less developed Chinese cities show higher emission ratios (0.44 Tg/yr), while Chinese NH 3 vehicle emissions (0.09 ± 0.02

Vehicles 150