Agriculture Building Air Monitoring Station, Sangamon County, Illinois

The Agriculture Building Air Monitoring Station is located on the State Fair Grounds in Sangamon County, Illinois, United States. Operated by the Illinois Environmental Protection Agency, this station is part of the national air quality monitoring network under the US EPA Air Quality System (AQS). It provides continuous data on ambient air quality, supporting regulatory compliance and public health assessments. As an air monitoring station, it measures criteria pollutants and other parameters as required by the Clean Air Act. The station's location near agricultural activities and a major fairground allows it to capture emissions from farming operations, traffic, and seasonal events. The Illinois EPA ensures data quality through standard operating procedures and regular calibration. The station plays a key role in regional air quality management, helping to track pollution trends and inform policy decisions. Its data contributes to the national AQS database, used by researchers and regulators to assess compliance with National Ambient Air Quality Standards (NAAQS) and to protect public health in central Illinois.

The Agriculture Building station is situated in a mixed agricultural and urban area of Sangamon County. Its monitoring focuses on criteria pollutants such as ozone, particulate matter, and nitrogen dioxide, which are relevant to both agricultural emissions and local traffic. The station's siting is representative of rural and suburban influences, providing data essential for understanding regional air quality dynamics and supporting the EPA's regulatory framework.