Poor air quality isn't always obvious, but it's a serious health issue affecting both our indoor and outdoor environment ...

Wildfires in Canada are sending heavy smoke across the northern U.S., and New Jersey is experiencing some unhealthy air ...

India’s current Air Quality Index (AQI) fails to reflect the true health dangers of pollution, especially the short-term risk ...

The New York State Department of Environmental Conservation issued the alert due to elevated levels of fine particulate ...

The Air Quality Index system used by the Environmental Protection Agency often rises to unhealthy levels due to wildfires, so ...

Canadian wildfire smoke is affecting air quality in parts of Michigan. The EPA's air quality index (AQI) uses a color-coded scale to inform the public about air quality and associated health risks.

How to read Environment Canada’s air quality index and find out if you’re at risk Wildfire season is upon us once again, and smoke is reducing air quality through swaths of the country.

Unhealthy Air Quality Index level Red: Indexes in the 151 to 200 range are considered "unhealthy." At this level, any member of the general public becomes susceptible to health effects.