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  2. Chicago air quality unhealthy as Canadian wildfire emissions ...

    www.aol.com/chicago-air-quality-unhealthy...

    The air quality in Chicago has reached unhealthy levels as the city is affected by the smoke coming from the wildfires in Canada, where record-beating emissions are leading to the smoke travelling ...

  3. Chicago's air quality ranks among worst in the world - AOL

    www.aol.com/news/chicagos-air-quality-ranks...

    Chicago had the worst air quality in the world Tuesday, according to IQAir.com, a tracking service. The city's air quality index is in the "very unhealthy" category for all age groups, reminiscent ...

  4. Chicago Air - Wikipedia

    en.wikipedia.org/wiki/Chicago_Air

    Chicago Air had been working closely for two years with Saab Aircraft of Linköping, Sweden to acquire initially 10 Saab SF-340 turboprop commuter aircraft, which would have begun delivery in 1987 enabling expansion of services to Des Moines, Cedar Rapids, and Waterloo, IA; South Bend, Ft. Wayne, Lafayette, and Evansville, IN; and Kalamazoo and ...

  5. Dangerously hot temperatures, poor air quality continue in ...

    www.aol.com/dangerously-hot-temperatures-poor...

    An excessive heat warning remains in effect until 10 p.m. in northern Illinois, as the weather service warns of a heat index — what the temperature feels like when humidity is combined with air ...

  6. Air Pollution Control Act of 1955 - Wikipedia

    en.wikipedia.org/wiki/Air_Pollution_Control_Act...

    The Air Pollution Control Act was the culmination of much research done on fuel emissions by the federal government in the 1930s and 1940s. Additional legislation was passed in 1963 to better fully define air quality criteria and give more power in defining what air quality was to the Secretary of Health, Education, and Welfare.

  7. Non-attainment area - Wikipedia

    en.wikipedia.org/wiki/Non-attainment_area

    The state and tribal recommendations must be based on available air quality data from the given area. [6] The EPA reviews the recommendations from state and tribal governments and the local air quality data, and awards one of three classifications to a region within 2 years of the addition or revision to the NAAQS . [6] [7] Classifications include:

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