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Sierra Club’s Grand Canyon Chapter

ozone, pollution, Maricopa County, EPA, poor ozone quality, NOx, NO, lipids, allergens, Sierra Club’s Grand Canyon Chapter, Covid, pollution, heart attacks, strokes
Jan 11, 2023

Maricopa County’s ozone pollution is high and getting worse

Maricopa County’s ozone levels are getting worse, harming the health of its 4.5 million residents and threatening to cost the region billions of dollars in the coming years.

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