Beware of breathing? That's the message The National Weather Service sent when it issued an air quality alert for Northeastern Illinois and northwestern Indiana.
The high concentration of fine particles could be due to a high-pressure system in the area; wind is weak in such areas and might not be able to blow the particles away, Nathan Marsili, a National Weather Service meteorologist told the Chicago Breaking News Center.
The Illinois Environmental Protection Agency and Indiana Department of Environmental Management also issued air pollution action alerts this week. Children, the elderly and people with heart or lung conditions are most at risk from the fine particulates.
This isn’t the first time Chicago air has tested positive for pollutants. Two years ago a toxic paint byproduct plagued Chicagoland.
This recent alert includes McHenry, Lake, Kane, DuPage, Cook, Kendall, Grundy and Will counties in Illinois.