air quality

LA and Long Beach ranked the worst cities for air quality due to smog
A new report shows smog pollution has improved across the country over the last 25 years, with ozone levels at about half of what they were historically.
Facing the Facts: Environmental Justice | Watch full special
Castaic landfill operators reach agreement with SCAQMD over foul odors
Wood-burning ban extended through Tuesday in SoCal
More than 100 dogs impacted by OC hangar fire relocated to Ohio
Efforts underway to deconstruct historic hangar in Tustin after fire
Animal shelter near OC hangar fire asks for volunteers to take in dogs
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Schools reopen as officials continue to assess Tustin hangar fire
Some schools cleared to reopen as Tustin hangar continues to burn
Tustin schools to remain closed Tuesday due to hangar fire
Flare-up erupts at historic Tustin hangar after massive fire
Asbestos detected in historic hangar fire debris in Tustin
AQMD orders Chiquita Canyon landfill in Castaic to address odor
Doctors explain health risks due to poor air quality from fireworks
4th of July fireworks cause air quality advisory for SoCal counties
15 California firefighters deploy to help battle Canadian wildfires
Here's how the trucking industry is working to go green in California
PM10 vs PM2.5: What to know about the particulate matter in the air
New York City skyline turns orange due to Canada wildfires
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More Stories
Facing the Facts: Environmental Justice | Watch full special
Castaic landfill operators reach agreement with SCAQMD over foul odors
Wood-burning ban extended through Tuesday in SoCal
More than 100 dogs impacted by OC hangar fire relocated to Ohio
Efforts underway to deconstruct historic hangar in Tustin after fire
Animal shelter near OC hangar fire asks for volunteers to take in dogs
Schools reopen as officials continue to assess Tustin hangar fire
Some schools cleared to reopen as Tustin hangar continues to burn
Tustin schools to remain closed Tuesday due to hangar fire
Flare-up erupts at historic Tustin hangar after massive fire
Asbestos detected in historic hangar fire debris in Tustin
AQMD orders Chiquita Canyon landfill in Castaic to address odor
Doctors explain health risks due to poor air quality from fireworks
4th of July fireworks cause air quality advisory for SoCal counties
15 California firefighters deploy to help battle Canadian wildfires
Here's how the trucking industry is working to go green in California
PM10 vs PM2.5: What to know about the particulate matter in the air
New York City skyline turns orange due to Canada wildfires
Show More
Show Fewer