Northeast Ohio is under an air quality alert due to elevated levels of ozone or particulate matter. The Air Quality Index (AQI) is currently at a level unhealthy for sensitive groups like those with ...

The U.S. Air Quality Index (AQI) is the Environmental Protection Agency’s tool for reporting outdoor air quality and health. The AQI includes six color-coded categories, each corresponding to a range ...

An air quality alert continues for the entire Chicago area Friday, with poor air quality due to smoke from Canada wildfires expected to stick around all day and even into Saturday, the NBC 5 Storm ...

Canadian wildfire smoke triggers air quality advisory across Michigan's Upper Peninsula. Lansing air quality remains acceptable based on the Air Quality Index, despite the smoke. Sensitive groups are ...

India's air quality framework hasn't been comprehensively revised since 2009 and needs an update, say experts.

When the Air Quality Index crosses 400, the air becomes dangerously toxic, posing an immediate threat to lung health. Doctors ...

Smoke from Canadian wildfires is once again impacting air quality in the Chicago area, with air quality index readings Thursday morning in the "unhealthy" category for some suburbs, according to ...

India's national AQI at severe level 251; Naultha worst at 1071. Delhi records 387-470; PM2.5 dominates. N95 masks and air ...

Canadian wildfire smoke continues to affect Michigan, causing hazy skies and reduced air quality, especially in the Upper Peninsula and northern parts of the state. Resources like the MiAir Quality ...

The Commission for Air Quality Management announced on Tuesday that it would invoke the third stage of GRAP after the city's ...