Wildfires and PM2.5 Pollution Threaten US Air Quality Progress

The contribution of wildfire to PM2.5┬átrends in the USA The air quality in the USA has improved over the years, thanks to public policies. However, there’s been a recent increase in a type of air pollution called PM2.5, partly due to wildfires. Since 2016, wildfires have made the air dirtier in about 75% of US…