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Video Simulations of PM2.5 Levels in Europe and the United States, Choirat

Evolution of PM2.5 levels in Europe and the United States The following videos depict the evolution of PM2.5 levels from 1998-2015 in Europe and the United States. The same color scales are used for both videos. As shown, there are drastic improvements in air quality for the whole US, while air quality in Europe does not show much improvement and some areas, including Milan, worsen. Video Author: Christine Choirat Data Sources:…

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“Direct” Approach Evaluates Air Quality Interventions, Zigler et al.

Causal Inference Methods for Estimating Long-Term Health Effects of Air Quality Regulations, was funded as part of HEI’s Accountability research program, aimed at understanding whether actions to improve air quality have resulted in improved health outcomes. Corwin Zigler and his colleagues used existing and newly developed statistical methods to assess whether an intervention was causally related to changes in pollutant levels or health outcomes, and applied their methods in two…

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Particulate air pollution from wildfires in the Western US under climate change, Liu et al.

  In the western US, wildfires contribute to over 70% of ambient fine particles (PM2.5) on days when PM2.5 levels exceeded the National Ambient Air Quality Standards. With future climate change, extended episodes of high-PM2.5 levels from wildfire smoke are estimated to be 57% more frequent and 31% more intense by mid-century. More than 82 million individuals are estimated to be affected by smoke waves 30 years from now, especially…

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