Ambient fine particulate matter (PM2.5) is the world’s leading environmental health risk factor.
Ambient fine particulate matter (PM2.5) is the world’s leading environmental health risk factor. At only 2.5 micrometers or smaller, these particles are small enough to be inhaled and cause respiratory problems, such as asthma and bronchitis, and cardiovascular issues, including heart attacks and high blood pressure. For children, PM2.5 can cause lifelong developmental issues, and for the general population, PM2.5 is associated with premature death.
To ameliorate these wide-ranging negative impacts resulting from exposure to PM2.5, which is produced largely through traditional energy sources such as burning fossil fuels or wood, several countries have taken steps to reduce exposure to PM2.5. But how effective have these mitigation efforts been, and what region or regions are most responsible for driving global PM2.5 reduction?
Researchers working with Randall Martin, the Raymond R. Tucker Distinguished Professor in the McKelvey School of Engineering at Washington University in St. Louis, examined PM2.5 data from 1998-2019 to find out.
Read more at: Washington University in St. Louis