ozone air pollution

Pima County 2020 Ozone Season Update

Audio Article

Tucson – We are now more than halfway through the 2020 ozone air pollution season and Pima County Department of Environmental Quality (PDEQ) has recorded two days where levels of this air pollutant exceeded the U.S. Environmental Protection Agency (EPA) health standard. For comparison purposes, the Phoenix area has had 22 ozone exceedance days so far in 2020. During the […]