Ozone

A plume of smoke from the Jerusalem Fire in Lake County. (CBS)

Wildfire Smoke Blankets Bay Area But Vehicle Exhaust Is Main Culprit In Sunday’s Spare The Air Alert

Smoke from Northern California wildfires hung over the Bay Area on Saturday and a Spare the Air alert was issued for Sunday, though officials said it was ozone — not smoke — that prompted the warning.

08/15/2015

Firefighters battle a wildfire. (CBS)

Late Spare-The-Air Notice Issued As Wildfires Impact Air Quality

Wildfires, high temperatures and light winds have caused air quality in Northern California to deteriorate and prompted Bay Area officials to declare Friday the first Spare the Air Day of the 2013 season.

05/03/2013

(credit: Thinkstock)

Outdoor Air Quality: Is America Suffocating Itself?

This spring, runny eyes and a stuffed up nose may not be the result of seasonal allergens.

04/24/2013

Children's toys inside a shuttered daycare center. (John Moore/Getty Images)

Researchers Find High Formaldehyde Levels At Bay Area Day Care Centers

UC Berkeley researchers have recorded high levels of the carcinogen formaldehyde at dozens of Northern California day care facilities.

10/25/2012