File name: air-quality-fire-smoke-2023-06-28.jpg
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A screenshot of the AirNow.gov Fire and Smoke Map showing the location of smoke (gray shading) and air quality conditions at monitoring stations (dots) on June 28, 2023. Smoke from fires in Canada pushed particle pollution in the Great Lakes and Ohio Valley region into the range considered "unhealthy" (red dots) and "very unhealthy" (purple dots). Image from the Environmental Protection Agency AirNow.gov website.