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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:
While some counties in central and southern Illinois had low levels of pollution, areas in Chicagoland are some of the most polluted in the nation.
The ERMS was created by the Illinois Environmental Protection Agency (IEPA) in response to the Clean Air Act Amendments of 1990. Under the amendments, the Chicago metropolitan area was mandated to reduce ozone forming VOM emissions by 9% every 3 years from 1996 until the area reached attainment. Wishing to reduce emissions without imposing the ...
Lead (Pb): In the mid-1970s, lead was listed as a criteria air pollutant that required NAAQS regulation. In 1977, the EPA published a document which detailed the Air Quality Criteria for lead. This document was based on the scientific assessments of lead at the time.
A woman jogs with a dog along the Hudson River shortly after sunrise, as haze and smoke caused by wildfires in Canada hang over the Manhattan skyline, in New York City, New York, U.S., June 7, 2023.
The stations send hourly or daily measurements of the following air pollutants to the EPA's database, called the Air Quality System: Ground-level ozone. Particulate matter. Carbon monoxide. Sulfur ...
The materials contain elevated levels of cadmium, copper and lead. Sediments in nearby wetlands and Long Lake also have elevated levels of the same metals. 03/04/2010 – – – IL0210090049: Joliet Army Ammunition Plant Load-Assembly-Packing Area: Will
Looking down from the Hollywood Hills, with Griffith Observatory on the hill in the foreground, air pollution is visible in downtown Los Angeles on a late afternoon.. Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems.