The Air Quality Index, set by the Environmental Protection Agency, is your guide to how bad the air quality is outdoors. The data that goes into the Air Quality Index comes from 5,000 air monitors ...
Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.
By Aaron Schrank/LAist Originally published Jan. 14, 2025 Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” ...
The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) ...
Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels, provide a rough sense of the ...
Researchers at Brown University discovered that fine-particle pollution can significantly impact your marathon finish time ...
This measure, based on data from the Environmental Protection Agency, evaluates states on the number of days the Air Quality Index in counties was not rated “good.” U.S. News calculated a ...
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Air quality is improving in some metro areas, but worsening in the Midwest and California, per EPA dataRecent data from the Environmental Protection Agency shows air quality in certain regions of the U.S. is deteriorating, ...
A large area of greater Los Angeles had unhealthy air Friday, due to particulate matter from large wildfires. Here are tips for breathing cleaner air indoors if it's smoky outside.
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