Bay Area's air quality struggles despite green reputation, with high ozone and particle pollution impacting health, ...

The study released Wednesday also documented the region’s inordinate short-term and year-round particle pollution. The annual ...

Children and other sensitive groups are being urged to remain indoors today across parts of southern California, Oregon and ...

The most recent State of the Air report by the American Lung Association found that more than 150 million Americans breathe ...

Pollution levels in certain parts of the US are soaring to dangerous levels with vulnerable people being advised to avoid ...