CENTRAL JR HIGH Air Monitoring Station, Effingham, Illinois | USA Environmental Monitoring

CENTRAL JR HIGH is an air monitoring station located in Effingham, Illinois, United States. It is operated by the Illinois Environmental Protection Agency and contributes to the national ambient air quality monitoring network under the US EPA Air Quality System (AQS). The station is situated in a rural area near US Highway 45, providing representative air quality data for the region. The station operates under the regulatory framework of the US Clean Air Act and EPA ambient air quality standards. It is part of a statewide network managed by the Illinois EPA, which monitors criteria pollutants such as ozone, particulate matter, and nitrogen dioxide. The station's last reported sample date is September 30, 2025, indicating ongoing data collection. As a monitoring station in central Illinois, CENTRAL JR HIGH supports local and regional air quality management. Its data helps assess compliance with National Ambient Air Quality Standards (NAAQS) and informs public health advisories. The station plays a role in tracking long-term air quality trends in Effingham County.

The station's location in Effingham County, a rural area with agricultural and light industrial activity, provides baseline air quality data for the region. Monitoring criteria pollutants here helps detect any impacts from local sources such as traffic on US Highway 45 or agricultural burning. The data contributes to the EPA's AQS database, supporting regulatory compliance and public health protection.