Air quality in San Diego County is the best it's been since pollution-tracking standards were implemented in the 1950s, but the region still fails to meet federal standards for ozone and particulate-matter release, according to …
July 17, 2014
Posted July 16, 2014
Air quality in San Diego County is the best it's been since pollution-tracking standards were implemented in the 1950s, but the region still fails to meet federal standards for ozone and particulate-matter release, according to …