Air pollution exposure increases risk of COVID-19 hospitalization: study

Smoke rises from a chimney at a factory in Heiligengrabe, Germany, Thursday, Oct. 28, 2021. (AP Photo/Michael Sohn) Smoke rises from a chimney at a factory in Heiligengrabe, Germany, Thursday, Oct. 28, 2021. (AP Photo/Michael Sohn)

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This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, orange, emerging from the surface of cells, green, cultured in the lab. (NIAID-RML via AP) This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, orange, emerging from the surface of cells, green, cultured in the lab. (NIAID-RML via AP)

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