Chicago recorded the worst air quality in the world on June 27, triggered by continuing Canadian wildfires, and officials are warning about the health implications posed by the concerning air quality across the U.S. Midwest.
The Air Quality Index in Chicago reached 195 on June 27, according to Swiss air technology company IQAir. Detroit was second at 171, according to IQAir.
Such readings are considered unhealthy and could lead to some adverse health effects, particularly among sensitive groups, according to the U.S. Environmental Protection Agency (EPA).
The National Weather Service urged Chicago residents to consider limiting prolonged outdoor activities, particularly if they have chronic respiratory issues….