The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Posts from this topic will be added to your daily email digest and your homepage feed. The EPA proposed tightening restrictions on soot in the air. Advocates are pushing for the agency to get tougher.

Delhi recorded the lowest yearly average of particulate matter PM2.5 and PM10 levels in 2025, excluding the Covid year of ...

The impact of particulate matter air pollution on death and disability is on the rise worldwide, according to new research published today in the Journal of the American Heart Association, an open ...

People breathing contaminated air over the course of years are at greater risk of developing numerous diseases. This is thought to be due to highly reactive components in particulate matter, which ...

Greenhouse gases (GHGs) may be the newest pollutant regulated by EPA, but since there are no National Ambient Air Quality Standards (NAAQS) for GHGs, a facility is much more likely to be affected by ...

The health effects linked to particulate pollution exposure have been studied and documented for decades. These effects include respiratory and cardiovascular health problems and premature death. The ...

What is particulate matter? How do I interpret the AQI? There's a lot to learn since Canadian wildfires suddenly sent clouds of hazy smoke over the border and into parts of the Midwest, Northeast and ...

Researchers have investigated whether particulate matter from certain sources can be especially harmful to human health. They found evidence that the amount of particulate matter alone is not the ...