Health Expert Warns Of Breathing Problems From FireAs KCAL9/CBS2's Jo Kwon reports, health experts recommend people avoid being outside.
La Tuna Fire Raises Air Quality Concerns As Smoke and Ash Pour Across Sun ValleyHundreds of firefighters continued to battle the blaze as it spread to more than 5,800 acres Sunday night.  
California Climate Law Backers Look For SupportCalifornia lawmakers leading an effort to extend the state's signature climate change initiative made a last-minute appeal Saturday to critics on the left who say their plan doesn't do enough to reign in polluters.
Southern California Fires Impact Air QualityThe second week of summer brings two fires to Orange County -- and lots of smoke.
Paramount Metal Processing Company Ordered To Shut Down Fourth Time This YearAerocraft Heat Treating Co. was ordered by the South Coast Air Quality Management District to curtail such operations by midnight Thursday because of elevated levels of hexavalent chromium in the air.
Southern California Having Smoggiest Summer Since 2009Southern California is having its smoggiest summer in nearly a decade and hospitals report an increase of people with breathing problems.
LA Air Quality Suffers This SummerAir quality in Los Angeles was unhealthful throughout July. Experts blame weather instead of emissions.
Air Quality Will Likely Reach Unhealthful Levels Due To Fireworks, Experts WarnThe South Coast Air Quality Management District is warning that air quality in the LA basin and the Coachella Valley will likely reach unhealthful levels through Tuesday morning.
ExxonMobil Delays Restarting Torrance Refinery Until MondayThe company cited unexpected operational delays as the reason.
Porter Ranch Residents Demand Closure Of Aliso Canyon Gas Storage Facility Hundreds of Porter Ranch residents gathered this morning to demand the immediate closure of the Aliso Canyon gas storage facility -- the source of a months-old natural gas leak that has led to complaints of illness.
More Families Flee Porter Ranch Homes Over Potentially Noxious Gas Leak"I would never have imagined that we would have to move out because the quality of the air was so toxic and poisoned," said Susan Gorman-Chang.
UCLA Report: LA County Air, Groundwater Excessively PollutedA UCLA study released Tuesday found that while Los Angeles County’s air quality has gotten nominally better, the area’s groundwater and stormwater have excessive levels of pollution.

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