Wildfires and PM2.5 Pollution Threaten US Air Quality Progress

The contribution of wildfire to PM2.5 trends 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…