Environment ❯ Air Quality

Pollution

Health Effects Air Quality Index Particulate Matter Urban Pollution AQI Smog Air Pollution Health Impact Health Impacts Sources of Pollution

Study Finds Home Wood Heating a Major Winter Polluter Linked to 8,600 U.S. Deaths

Smoke from suburban heaters drifts into cities, leaving people of color with higher exposure despite lower wood use.

Study Links Third-Trimester Wildfire Smoke to Higher Autism Risk in Southern California Births

California Air Quality Alerts Persist as 'Unhealthy' PM2.5 Prompts Stay-Home Guidance

Bay Area Extends Spare the Air Wood-Burning Ban Through Saturday

EPA Halts Monetizing Health Benefits of PM2.5 and Ozone in Final NOx Rule

Salt Lake City Leads U.S. Air Pollution for Second Day as Inversion Persists

Kīlauea Confirms 40th Summit Eruptive Episode With Hours of Lava Fountaining

EPA Finalizes Rejection of Colorado Haze Plan, Citing Illegality of Forced Coal Closures

Oregon Valleys Under Air Stagnation Advisory Through Sunday Morning

EPA Rejects Colorado Haze Plan Over Coal Plant Closures

Bay Area Issues New Year’s Day Spare the Air Alert, Bans Wood Burning and Urges No Fireworks

Haverhill Residents Decry Doughnut Odor From Dunkin’s Largest U.S. Bakery as City Delays Permit Vote

Delhi Makes 'No PUCC, No Fuel' Rule Permanent, Bars Entry of Non‑BS6 Vehicles

Delhi Police File FIR Against AAP Leaders Over Santa Skit on Pollution

Delhi’s Air Quality Slides Back to 'Very Poor' as Smog Returns

Arizona Opens New Year Fireworks Window With Strict Limits on Devices, Hours and Locations

Delhi High Court Seeks Centre’s Reply on Plea to Cut GST on Air Purifiers

BMC Halts Excavation at BKC Bullet Train Terminus Over Pollution Violations

AAP Trolls Delhi LG With 'Ghajini' Poster After Letter Blaming Kejriwal for Pollution

Christmas Eve Travel Update: Partial Closure on México–Puebla, México–Querétaro Reopens