Drought conditions in most of California will worsen air quality and increase airborne particulates like dust and pollen.

The report looks at two of the “most widespread and dangerous” air pollutants: fine particles and ozone. Ozone pollution isn’t just a California ... involves the Air Quality Index.

The Climate Prediction Center's recent dire drought outlook for California and the western United States has some more bad news: The dry, hot conditions will worsen air quality and introduce more ...