Pima County Department of Environmental Quality (PDEQ) is issuing an advisory for ground-level ozone air pollution for the Tucson metropolitan area today. Particulate matter levels will also likely be elevated due to the Contreras Fire southwest of Tucson. Individuals who are especially sensitive to air pollution may experience shortness of breath, coughing, throat irritation, wheezing, and breathing discomfort.
If you are especially sensitive to ozone, you may want to limit your level of exertion outside between noon and 6 p.m. when elevated levels of ozone pollution are...