Some Hawaii island residents were showing early signs of respiratory illness over the weekend as the lava from Kilauea Volcano expanded its footprint in the Leilani Estates subdivision. State Sen.

Among the many threats Hawaii’s Kilauea volcano poses — dangerous sulfur dioxide concentration, lava flowing through neighborhoods, boulders-turned-ballistic missiles — is acid rain, says the U.S.

Emissions of the air pollutant sulfur dioxide have been dramatically decreased during the past 30 years but for some people even a little inhaled sulfur dioxide may still be too much. "Asthmatics are ...

WASHINGTON The Environmental Protection Agency issued a new health standard on Thursday for sulfur dioxide emissions, the first such revision in nearly 40 years. The agency said the new standard, ...

Volcanoes erupt, they spew ash, their scarred flanks sometimes run with both lava and landslides. But only occasionally. A less dramatic but important process is continuous gas emissions from ...

WASHINGTON, D.C. - Reduced sulfur dioxide emissions from Painesville’s municipal power plant and the 2015 closure of FirstEnergy’s Eastlake power plant has brought Lake County into compliance with ...

High in the sky, water in clouds can act as a temptress to lure airborne pollutants such as sulfur dioxide into reactive aqueous particulates. Although this behavior is not incorporated into today's ...

The eruption of Kilauea volcano that began Sunday could cause air quality hazards across the islands, the state Department of Health cautioned residents Tuesday. While all activity is within Hawai’i ...

China's sweeping efforts to clean up its air have delivered one of the biggest public health success stories of recent ...