Chronic exposure to pollution from wildfires has been linked to tens of thousands of deaths annually in the United States, ...

Air Quality Index, or AQI, and PM2.5, particulate matter which measures 2.5 micrometers or less, are not the same thing. But both do refer to how polluted the air is, just in different ways. AQI, an ...

Aerosol components of PM2.5 particles more strongly linked with mental health disorders: Study ...

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Large increases in PM2.5 exposure from wildfires have exaggerated progress in reducing inequities in traditional sources of PM2.5 in California, especially across racial groups and in years with ...

The weather situation in California and Oregon requires extra precautions. The U.S. Environmental Protection Agency (EPA) ...

While Chicagoans may have heard the city's air quality is particularly bad right now, just how bad is it and what exactly is causing the "unusual" levels? The conditions have already led to an air ...