After a civil rights complaint, Chicago built the nation’s largest air monitoring network
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Serap Erdal stopped at a light pole in Chicago’s Grant Park, pulled out her phone, and began pinching at the screen. Behind her, towering skyscrapers cut into a sunny blue sky as she scanned her palm-sized map of the city. The researcher barely noticed the hum of city buses, cars, and cyclists buzzing around her in the city’s busy downtown. She was working out what was in the cool summer air.
Fixed to the pole above her was one of the city’s new solar-powered air
Fixed to the pole above her was one of the city’s new solar-powered air
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