We should really have a better way of knowing when it’s safe to go outside.

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 ...

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 ...

While particulate matter air pollution from human activity in transportation, households and industry is decreasing in Europe ...

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 ...

Checking the fine particulate matter levels along with the weather every morning has become a daily routine. Research continues to show that fine particulate matter affects not only the respiratory ...

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 ...

The Environmental Protection Agency released the final version of a much-anticipated rule on Wednesday that tightens restrictions on fine particulate matter — one of the most pervasive and dangerous ...

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 ...