Urban heat islands, created when pavement, driveways, and other surfaces absorb and trap heat in cities, can intensify hot weather and increase the amount of ozone pollution in the air.
Viewer Tip: Gas-powered vehicles contribute to ozone pollution. On hot days, consider reducing your driving time by carpooling, using public transportation, or walking to your destination.
Seasons: Summer
(Source: United States Environmental Protection Agency. 2004. “Cooling Summertime Temperatures: Strategies to Reduce Urban Heat Islands.” Publication Number 430-F-02-014.)

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