Frequent wildfires and heat intensify air quality issues in American megacities

PHYSorg
Sep 30, 2025, 12:45 pm484 ptsHotTop
Air quality in America's largest cities has steadily improved thanks to tighter regulations on key sources of particulate pollution. However, increased heat, wildfire smoke and other emerging global drivers of urban aerosol pollution are now combining to create a new set of challenges for public health…

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