Several ozone action days by the county so far have urged people to stay inside and avoid outside activities, especially those with respiratory problems.
Pima County issues ozone warning today for metro Tucson tucson.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from tucson.com Daily Mail and Mail on Sunday newspapers.
PDEQ issues ozone air pollution action day kvoa.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from kvoa.com Daily Mail and Mail on Sunday newspapers.
Ozone air pollution day issued by PDEQ kvoa.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from kvoa.com Daily Mail and Mail on Sunday newspapers.
FIRST ALERT: Ozone air pollution action day kold.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from kold.com Daily Mail and Mail on Sunday newspapers.