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Cars and wildfires contribute to Utah’s air pollution, but the Great Salt Lake is a less obvious but important contributor. Sitting just northwest of Salt Lake City, the largest saltwater lake in the Western Hemisphere is drying up because of water use and drought amid a changing climate, sending dust with toxic metals — including arsenic — in the air of a metro area with approximately 1.2 million people.
Particle pollution in the air has been linked to asthma, heart attacks, worsened lung function and premature death.