When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

Have you ever noticed the strange, colorful splotches clinging to rocks, tree bark, or even old fences after a rainy day?

Millions of people in California have been urged to avoid grilling on Wednesday amid concerns over high air pollution levels.

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel ...

Smoke travels hundreds of miles to harm air quality far from the fire, according to the EPA’s Wildfire Smoke and Your Patient ...

Transco, a major interstate natural gas pipeline system in the United States, is planning to expand its operations in five ...

Indiana ranks worst in the U.S. for lung health due to high smoking rates and poor air quality, while Colorado and Hawaii ...

MIchigan's air quality will be unhealthy for some groups Saturday. Check the air quality index map to see if it's good or bad ...

MIchigan's air quality will be unhealthy for some groups Friday and Saturday. Check the air quality index map to see if it's good or bad near you.

In the air pollution heat map below, researchers and developers at AirVisual, a project of the Switzerland-based air pollution mitigation firm IQAir, use billions of bits of data — culled from ...

Every year, more than 300,000 people die of lung cancer due to PM 2.5, and research suggests these pollution particles not only initiate cancer-causing genetic defects but drive tumor formation.

Poor air quality caused by ozone and other sources prompted the warnings across six states on Thursday and Friday.