Overview
IEPA TRAILER is an air monitoring station in Schiller Park, Illinois, operated under the Eastern Research Group. It provides ambient air quality data as part of the US EPA regulatory network.
IEPA TRAILER is an air monitoring station located at 4743 Mannheim Rd. in Schiller Park, Illinois, within Cook County. The station is part of the United States Environmental Protection Agency's (US EPA) Air Quality System (AQS) network, which monitors criteria pollutants and other atmospheric parameters to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station reports to the Eastern Research Group, a contractor supporting EPA monitoring efforts. While specific parameters measured are not detailed, typical air monitoring stations in Illinois track pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station's last sample date was June 30, 2025, indicating recent operational activity. Located near Chicago O'Hare International Airport, the station provides critical data on urban and industrial air quality impacts. Its readings help inform public health advisories and regulatory decisions in the greater Chicago metropolitan area, supporting community exposure assessments and long-term trend analysis.
Environmental context
The station's location in Schiller Park, adjacent to O'Hare Airport and major highways, makes it representative of urban-industrial air quality challenges. Monitoring in this area captures emissions from transportation, aviation, and local industry. Parameter coverage typically includes criteria pollutants and meteorological data, with siting designed to assess population exposure. Reporting continuity through the EPA AQS ensures data comparability across the national network.
Frequently asked questions
IEPA TRAILER is located at 4743 Mannheim Rd., Schiller Park, Illinois, in Cook County, near Chicago O'Hare International Airport.
As an EPA Air Quality System station, IEPA TRAILER monitors criteria pollutants such as ozone, particulate matter, nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, along with meteorological parameters.
The station is operated under the Eastern Research Group, a contractor supporting the US EPA's air monitoring network.
Air monitoring stations like IEPA TRAILER operate under the US EPA's Air Quality System (AQS) network, following the Clean Air Act and National Ambient Air Quality Standards (NAAQS).
The station provides continuous air quality data that supports public health advisories, regulatory compliance, and long-term trend analysis for the Chicago metropolitan area.
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