U.S. News & World Report1y
Air Quality
The air quality metric is one of many that factor into the overall Best States rankings. See the Best States methodology for a detailed look at the data behind the analysis. 50 States #1 in Air ...
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Does a ‘good’ Air Quality Index rating mean it’s safe to be outdoors?
The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on data collected from 5,000 air monitors across the country. The index ...
Map Shows Air Quality Plummeting in California As Hughes Fire Rages
Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...
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Is the Air Quality Index enough? What the AQI can — and can't — tell you about how healthy the atmosphere is.
The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) ...
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Los Angeles air quality improves from wildfires' hazardous levels
as judged by the EPA's Air Quality Index rating system. Moderate air quality is between 51 and 100, or in the yellow band of the AQI scale. Air quality in the moderate range can still be risky for ...