The classifications are based on a federal measurement system called the Air Quality Index. The Air Quality Index is used nationwide to measure the severity of air pollution and categorize the ...

Another air quality alert has been issued for the NYC area today, and it has expanded to include Long Island and New Jersey.

As Canadian wildfires burn, Greater Lansing is seeing smoke, haze. On June 5, most of the Lower Peninsula is under an air ...

The city's air quality index (AQI) score was 122 as of 8 a.m. June 4, putting it in the unhealthy for sensitive groups range ...

An air quality alert has been issued for much of the Chicago area Wednesday afternoon as Canadian wildfire smoke once again ...

A measure called the Air Quality Index gauges just how bad the air has become in a particular place. Readings of 100 or higher usually serve as a warning to people who have respiratory conditions ...

The Air Quality Index (AQI) is used by various government agencies to report how clean or polluted the air is in your area. For example, you may have spotted this metric popping up in local ...

Here’s how to decode the Air Quality Index. What is the Air Quality Index? The term “code red” comes from the U.S. Environmental Protection Agency’s color-coded Air Quality Index (AQI ...

Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels, provide a rough sense of the pollution floating in the skies. But those types of indicators don't capture ...

Donate now. Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County ...

Alena is a professional writer, editor and manager with a lifelong passion for helping others live well. She is also a registered yoga teacher (RYT-200) and a functional medicine certified health ...