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Air quality alert in effect until midnight in Chicago area, weather officials say
Besides temperatures feeling in the high 90s Wednesday, Chicago and surrounding areas are under an air quality alert until midnight, weather officials said. The Illinois Environmental Protection Agency issued an Air Pollution Action Day for the greater Chicago area,
Each Air Quality Index category, also known as the level of concern, is attached to a certain range of values: Good (green): 0 to 50; Moderate (yellow): 51 to 100; ...
What does PM2.5 mean on the air quality index? On the AQI, particulate matter readings, labeled "PM2.5," range from 0-301 or higher, and measure the fine particulate matter in the air , such ...
The U.S. Air Quality Index (AQI) is the Environmental Protection Agency’s tool for reporting outdoor air quality and health.
Though exercising outdoors can usually be a great way to stay healthy, the 101-150 range on the Air Quality Index is probably the highest level at which it remains safe to do so.
An air quality alert has been issued for all of Michigan for Sunday and Monday due to smoke from Canadian wildfires.
What does PM2.5 mean on the air quality index? On the AQI, particulate matter readings, labeled "PM2.5," range from 0-301 or higher, and measure the fine particulate matter in the air , such ...
The air quality index score is expected to rise to 105, which falls into the "unhealthy for sensitive groups" range of 100-150. The AQI scale is from 0 to 500. Higher numbers indicate worse ...
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