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Air Quality

Respiratory Health Health Risks Respiratory Issues Respiratory Diseases Smoke Exposure Health Recommendations Wildfire Smoke Health Advisories Pollution Effects Air Pollution

Autopsy Study Links Fine Particle Pollution to More Severe Alzheimer’s

Researchers report a 19% higher odds of severe Alzheimer’s pathology for each 1 µg/m³ rise in PM2.5.

New Studies Tie Fine Air Pollution to Worsening Alzheimer’s Pathology and Increased Hospitalization for Lewy Body–Related Dementia

Delta Agrees to $78.75 Million Deal Over 2020 L.A. Fuel Dump

Wildfires Drove 2023’s Sharpest Pollution Surge in U.S. and Canada, AQLI Finds

Peer-Reviewed Study Ties Tijuana River to Toxic Air in San Diego’s South Bay

Study Ties U.S. Oil and Gas Air Pollution to 91,000 Premature Deaths a Year

EPA Moves to Rescind Greenhouse-Gas Endangerment Finding as New Poll Backs Regulation

California Unveils Plan to Backstop EV Push After Federal Rollbacks

UCLA Finds Localized PM2.5 Spikes at Los Angeles EV Fast Chargers

Ariane 6 Completes Second Commercial Flight, Deploys MetOp-SG-A1 Weather Satellite

France Extends Ozone Alert Through August 15 as Heatwave Drives Levels Above Threshold

Heat and Wildfire Smoke Keep Multi-State Air Quality Alerts in Effect

Gifford Fire Reaches Megafire Status, Becomes California’s Largest Wildfire of 2025

Hoy No Circula Bars Blue-Sticker Cars in Mexico City and Edomex

JAMA Research Reveals Hidden Death Toll and Lasting Health Damage From Maui and Los Angeles Wildfires

Midwest Republicans File EPA Complaint Over Canadian Wildfire Smoke

California Wildfire Season Advances by Six Weeks, Study Finds

HEPA Air Purifiers Cut Systolic Blood Pressure in Adults Near Busy Highways

UK Car Fleet Hits Record Age of Nearly Ten Years

Blue-Sticker Vehicle Ban Returns in Mexico City and Edomex on August 1