Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern California region.

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

Map: Where the EPA found pollutants. NOTE: This version of USA TODAY's PFAS map is outdated. For the most recent version, click here. This map shows water systems included in the EPA's records, as ...

Air quality maps are regularly updated. "You can find daily ozone forecasts and real-time ozone conditions for over 300 cities across the country at the AIRNow Web site: airnow.gov," the EPA says.

Check your local drinking water system’s results in the map below, or explore the full map here. Under current rules, this means the utilities must stop using contaminated wells or install ...