When the air won’t circulate, then “regardless of what they’re looking at, when certain levels reach a critical value, they issue air quality alerts." ...

Kuwait City has ranked among the world’s top 10 most polluted cities, as residents experience very poor air quality driven by ...

Residents in Alaska, Pennsylvania and Alabama are urged to stay indoors Tuesday as PM2.5 pollution reaches unhealthy levels.

Unhealthy PM2.5 levels in parts of California and Mississippi are prompting EPA warnings for residents to limit outdoor ...

Most polluted city in India January 2026: In January, Ghaziabad experienced the worst air quality in the region, consistently exceeding the national daily PM2.5 standard with an average concentration ...

Low-cost air pollution sensors reveal stark disparities in exposure to extreme heat and air pollution in Contra Costa County, ...

Since the beginning of June, Racine County has seen 31 days where the highest air quality index was moderate, 7 days where ...