Air quality in the Kathmandu Valley has declined sharply of late, reaching very unhealthy levels. Those already suffering ...

Individuals with pre-existing heart problems may be more at risk from the negative consequences of air pollution on heart health, a study by Intermountain Health, Salt Lake City, has found. Scientists ...

Maryland has a pollution problem. A recent report from the Sierra Club reveals that over the past several years, residents across Maryland have lived with rising levels of ozone pollution that violate ...

The Phoenix metro area is experiencing worsening air quality due to high ozone levels, despite efforts to reduce emissions. Health experts warn that ozone pollution poses significant health risks, ...

Los Angeles has struggled with air pollution problems since before smog became a term. In 1943, smog covered the city so thickly that residents thought they were under a chemical attack. The creation ...

The U.S. Environmental Protection Agency will soon decide whether to escalate the Phoenix area's air pollution status, a choice that could have big ramifications for public health and the local ...

Pollution from the expanding shoreline of the Salton Sea may not be significant contributor to the region’s air problems. Some researchers suggest more emphasis on what people are breathing at home, ...