The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) But many Angelenos aren’t sure if the AQI tells the full story, especially given how ...

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The Sacramento region's air quality reached "unhealthy for sensitive groups" level on Thursday morning, according to IQAir.

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health risks. Michigan residents can check the AQI through various online resources, ...

Air quality in Milwaukee is once again approaching unhealthy levels due to Canadian wildfire smoke. As of 9 a.m. July 17, the Air Quality Index (AQI) in the Milwaukee metro area was between 115 to 120 ...

After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free skies this week. The Air Quality Index (AQI) — which measures the ...