Adriana Lacy (@adrianalacy.com)

59% of U.S. counties—home to more than 50 million people—lack air quality monitoring sites, creating "monitoring deserts" mostly in rural South and Midwest areas. Counties with higher poverty rates and more Black and Hispanic residents are more likely to lack monitors.

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Wildfires Are Challenging Air Quality Monitoring Infrastructure The U.S. has one of the world’s most advanced systems to monitor air pollutants. Can it keep up with a changing climate? https://undark.org/2025/07/04/wildfires-aqi-infrastructure/

4 months ago