In 1947, decades before the federal Clean Air Act, California’s leaders began regulating the causes of harmful air pollution.

Central Ohio is under an air quality alert Saturday due to smoke from Canadian wildfires. The Mid-Ohio Regional Planning ...

MORPC issues Air Quality Alert for Columbus due to wildfire smoke. AQI “Unhealthy for Sensitive Groups.” Limit outdoor ...

The Maine Department of Environmental Protection warns that unhealthy conditions may persist through the weekend.

San Diego faces a pollution crisis due to untreated wastewater from the Tijuana River affecting water and air quality.

To reduce pollution and protect public health, it is recommended to avoid gas stations during air-quality alerts or refueling ...

Learn more about the latest Phoenix area weather forecast and conditions with Most Accurate Forecast from ABC15.

Trump administration targets environmental rules that experts say prevent thousands of deaths and save billions in health ...

Opponents say the rules would have limited consumers’ choices and driven up costs, while supporters say they are critical for ...

An air quality alert was reported by the National Weather Service on Saturday at 9:56 a.m. in effect until 10 p.m. for Oneida ...

The crisis affects 25 million more people than last year, putting families at serious health risk. California cities dominate the worst air quality rankings, with pollution levels reaching decade-high ...

A weekly roundup of public health news Measles vaccination rates on the decline Vaccination rates for measles have been ...