After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free ...
Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...
The Air Quality Index (AQI) is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. For more ...
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 ...