Residents in the Chicago metropolitan area are again being advised to be careful of the air out there.
The Illinois Partners for Clean Air and Illinois Environmental Protection Agency extended the Air Pollution Action Day through midnight Wednesday, covering 10 Illinois counties.
The "Orange Day" means that ozone levels will be elevated, posing a potential hazard to at-risk individuals, particularly those with respiratory disorders such as asthma, active children and older adults.
Individuals and businesses to take steps to reduce air pollution such as finding other means of transportation besides driving, avoiding the use of gasoline-powered equipment and unplugging electronics when not in use.
Air quality alerts are available via email from EnviroFlash.info.
A dry, stagnant weather system is also helping to create viable conditions for the elevated ozone levels.