As of Tuesday morning, the Air Quality Index in Milwaukee was between 115 to 120, which falls in the "unhealthy for sensitive ...

The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan ...

As fires burn through the Northwest, doctors are warning that flames aren’t the only dangers – smoke can also cause ...

The Air Quality Index (AQI) — which measures the concentration of pollutants in the air — seemed to confirm all was well in the L.A. atmosphere, with low numbers that suggested clean, ...

Ideally, you want the AQI to be no higher than 50, assuming that you aren’t Hedorah, that Smog Monster from that 1971 Godzilla movie. An AQI of 100 corresponds to the level set as the short-term ...

The air quality index, or AQI, measures the air quality and level of health concern it presents as measured by the Environmental Protection Agency. How does AQI work?

Central Ohio counties face an Air Quality Alert as ozone levels rise due to high pressure and sunny conditions.

The Air Quality Index (AQI) is a national system developed by the U.S. Environmental Protection Agency (EPA) to translate ...