Several areas of California are at ... The researchers warn that cities such as San Rafael as well as Corte Madera, Foster ...

Cities in California make up a significant proportion of the country's most polluted metropolitan areas when it comes to air ...

Cathedral City, Palm Desert, Palm Desert Country, La Quinta and Coachella in California's Coachella Valley. AirNow urges children, the elderly, and sensitive populations to limit time outdoors ...