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UMD-led study finds China’s SO2 emissions down 75% since 2007, India’s up 50%; India may now be the top SO2 emitter

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Although China and India remain the world’s largest consumers of coal, a new University of Maryland-led study found that China’s sulfur dioxide emissions fell by 75% since 2007, while India’s emissions increased by 50%. The rapid decrease of sulfur dioxide emissions in China far exceeds expectations and projections.

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Mainline testing of UK’s first hydrogen train HydroFLEX gets green light

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Porterbrook and the University of Birmingham’s Center for Railway Research and Education (BCRRE) announced that the UK’s first hydrogen train—HydroFLEX ( earlier post )— will be tested on the mainline railway following a successful proof-of-concept.

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

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Anthropogenic emissions were responsible for ?37% Remaining impacts were attributable to naturally occurring ozone precursor emissions (e.g., The research team said that one way to reduce pollutants quickly would be to target emissions from cars, especially in big cities. 37% and 73% of ozone and PM 2.5 impacts, respectively.

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Researchers suggests high level of air pollution in Northern Italy a co-factor in COVID-19 mortality rate

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Researchers from the University of Siena in Italy and Aarhus University in Denmark are suggesting that the high level of pollution in Northern Italy should be considered an additional co-factor of the high level of COVID-19 fatalities recorded in that area.

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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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These observations may also assist air quality managers in assessing the most effective approaches to emission reduction programs that will improve air quality. If emissions of that molecule are reduced, then ozone formation will be reduced—critical information for air quality managers.

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Study finds power law scaling relationship between urban population and NO2 pollution

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A study by NASA scientists and their colleagues at Dalhousie University (Canada) and NOAA based on satellite data has found a significant correlation of surface nitrogen dioxide (NO 2 ) with population in the three countries and one continent examined: United States (r = 0.71), Europe (r = 0.67), China (r = 0.69), and India (r = 0.59).

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DISCOVER-AQ project to begin flights to enhance measurement of ground-level air-quality from space

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These sites will supplemented by additional instrumentation provided by NASA, EPA, Howard University, Pennsylvania State University, the University of Maryland-Baltimore County, and Millersville University in Pennsylvania.

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