Air Quality Alert

The Alabama Weather Blog / ABC 33/40

The has issued an air quality alert for Jefferson and Shelby counties.

The Code Orange alert issued Thursday means air pollution levels in the affected areas could irritate sensitive groups, such as children, the elderly and people with asthma.

11 similar alerts were issued in 2012 and a Jessica Chace, a National Weather Service meteorologist says heavy rain has likely helped keep Alabama's air quality at acceptable levels this summer.