Erin Davis/Axios Visuals Air quality is worsening in the Upper Midwest and Northern California, according to year-over-year data. Why it matters: Poor air quality can lead to long-term health problems ...

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 ...

Below you can see where smoke conditions are most dangerous and visual guide to improving air quality inside your home during a wildfire. Air quality in Los Angeles area impacted by wildfire smoke The ...

Think back to the red AQI forecast on your phone. What information was it trying to convey? The Air Quality Index (AQI) is a ...

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 ...

The quality of the air we breathe and the water we drink are critical aspects of leading a healthy, productive life. The air and water quality subcategory informs the best states for natural ...

Fueled by high-speed Santa Ana winds, the fast-moving Palisades Fire near Los Angeles is producing dangerous smoke. Below you can see where smoke conditions are most dangerous and visual guide to ...