An Air Quality Alert has been issued for parts of northern New York and Vermont today because of Canadian wildfire smoke.

The Air Quality Index (AQI) is a national system developed by the U.S. Environmental Protection Agency (EPA) to translate various air pollutant concentrations into a single, easy-to-understand number.

With wildfire smoke in the forecast, track the drop in air quality across dozens of PurpleAir sensors with our live, updating ...

The newer AQHI takes into account the health effects and environmental concerns associated with varying concentrations of pollution, two factors the AQI does not. AQHI measures the impact of air ...

The Illinois Environmental Protection Agency has issued an Air Pollution Action Day for Tuesday, July 15. Here's what to know ...

Several fires are burning across the Inland Northwest, leaving impacts on Spokane's air quality.

An Air Quality Health Advisory due to the wildfires in Canada has been issued for Niagara County through 11:59 p.m. today. The advisories are issued when DEC meteorologists predict levels of pollution ...

Expect another smoggy day in metro Detroit. The Southeast Michigan Council of Governments (SEMCOG) has declared its eighth Air Quality Advisory of the season for Tuesday, July 15, citing elevated ...