Estado do tempo em Pima County Public Library Valencia Branch

Air Quality Alert issued May 22 at 1:53PM MST by NWS Tucson AZThe Pima County Department of Environmental Quality (PDEQ) hasissued an Ozone Action Day for the Tucson Metro Area now untilsunset.This means that forecast weather conditions combined with existingozone levels are expected to result in local maximum 8-hour ozoneconcentrations that pose a health risk. Adverse health effectsincrease as air quality deteriorates.Ozone is an air pollutant which can cause breathing difficulties forchildren, older adults, as well as persons with respiratoryproblems. A decrease in outdoor physical activity is recommended.You are urged to car pool, telecommute, or use mass transit.The use of gasoline-powered equipment should be reduced or done latein the day.For details on this Ozone Action Day, visit the PDEQ website atwww.pima.gov/deq or call 520-724-6885.

National Weather Service