air qualityair quality

Smoke from a massive wildfire with a helicopter in the distance.

As US Wildfires Pollute the Skies, a Loophole is Obscuring the Impact. Can it be Fixed?

Air quality equipment encased in a chainlink fence.

In Detroit, a 'Magic Wand' Makes Dirty Air Look Clean — and Lets Polluters Off the Hook

Man with hands in pocket stands in front of home

What Is the Exceptional Events Rule? The Loophole Letting US Regulators Wipe Air Pollution From the Record

A silhouette of three people in the ocean with an orange-colored sky.

Revealed: How a Little-Known Pollution Rule Keeps the Air Dirty for Millions of Americans

A city shrouded in haze.

Spare the Air Alert Extended Through Saturday, Amid Lingering Wildfire Smoke

3M brand N95 particulate respirators are displayed on a table on July 28, 2020 in San Anselmo, California.

When Air Quality's Bad, Which Mask Can I Wear for Wildfire Smoke?

Homes on a hillside are seen through hazy air.

Bay Area Smoke Thickens, Air Quality Warning Issued Through Thursday

A city skyline blends into a gray haze as a bird flies by.

As Smoke Returns, Bay Area Air Quality Expected to Worsen Over Next Few Days

A large industrial facility set alongside a body of water with emissions emanating from it.

Oil Industry Blocks Effort to Increase Fines Against Polluting California Refineries … Again

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