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

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

Residents are encouraged to limit outdoor activities, stay indoors with windows and doors closed, and use air conditioners ...

Sampling found 77 percent of Wisconsin's Great Lakes beaches had high levels of E. coli, but danger was often transient.

A damaged pipe just north of the lake leaked 2,600 barrels of crude oil in early May, according to a report by the Environmental Protection Agency.

Temperatures inside EPA headquarters have soared above 80 degrees and elevators have been breaking down, sources said.

Smoke from Canadian wildfires is expected to drift into North Dakota again in coming days, potentially degrading air quality.

Pollution of Ireland’s largest saltwater lake in Co Wexford was allowed continue over 40 years without adequate intervention ...

A crash on State Route 67 near Ramona resulted in one driver being killed and five other people being injured.

The North Dakota Department of Environmental Quality is working to complete a roadmap the state could take to cut emissions, ...

There's a new class of chemical that has been gaining notoriety lately known as forever chemicals, but what are they and why such an ominous name?