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Study finds association between air pollution, coronary atherosclerosis in Chinese population

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Researchers from the University at Buffalo (UB), with colleagues in the US and China, have provided pathophysiologic evidence of the effect of air pollution on cardiovascular disease in China. Spatial Distribution of Estimated Annual Pollution Concentrations in 2015 in China. The study centered on levels of nitrogen dioxide and PM 2.5.

Pollution 320
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Study: plant roadside hedges rather than trees to combat near-road pollution

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Urban planners should plant hedges—or a combination of trees with hedges—rather than just relying on roadside trees if they are most effectively to reduce pollution exposure from cars in near-road environments, according to a new study from the University of Surrey. Atmospheric Environment doi: 10.1016/j.atmosenv.2018.12.036.

Pollution 354
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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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China’s measures to improve its air quality are working, but more stringent policies should be put in place to safeguard public health, according to a new open-access study by researchers at Tsinghua University published in the journal Environmental Research Letters. This study estimated that the premature mortality related to PM 2.5

2013 186
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U Toronto study measures GDI emissions in urban near-road environment

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A study of emissions from gasoline direct injection (GDI) vehicles in an urban near-road environment in Toronto over a wide range of weather conditions (February 2014 to January 2015) found that—other than for NO x and CO—the GDI engines had elevated emissions compared to the Toronto fleet.

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Study finds COVID-19 lockdown in China brought only slight reduction in PM2.5 and ozone

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The study, by scientists from the University of Leeds, UK and the Southern University of Science and Technology, China, analyzed air pollutant concentrations from China’s national network of around 1,300 monitoring stations to quantify the response of air pollution across China during the COVID-19 lockdown.

Ozone 243
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International study finds air pollution leads to millions of hospital visits for asthma attacks worldwide

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Air pollution—specifically PM 2.5 , ozone and NO 2 —could be to blame for up to 33 million emergency asthma attack visits to hospital a year, according to a new open-access study published in the journal Environmental Health Perspectives. The largest impacts were estimated in China and India. Anenberg, Daven K.

Pollution 207
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Satellite study suggests California clean air regulations working to reduce PM2.5 emissions in state

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Scientists from Emory University, NASA’s Jet Propulsion Laboratory and the California Air Resources Board teamed to analyze satellite data to determine the 15-year trend of PM 2.5 The open-access study, which focused on the four major components of PM 2.5 species, was recently published in the journal Atmospheric Environment.