Lafayette-Greenbush St./Cinergy Substation Air Monitoring Station, Lafayette, Indiana

Lafayette-Greenbush St./Cinergy Substation is an air monitoring station located at 3401 Greenbush St. in Lafayette, Indiana, within Tippecanoe County. Operated by the Indiana Department of Environmental Management's Office of Air Quality, this station is part of the broader 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 collects ambient air samples and reports data to the EPA AQS, with the most recent sample date recorded as September 30, 2025. While specific parameters measured are not detailed, typical stations in Indiana monitor ozone, particulate matter (PM2.5 and PM10), sulfur dioxide, nitrogen dioxide, carbon monoxide, and lead, along with meteorological data. The station's location near a substation and residential area provides representative urban air quality data. This monitoring station plays a key role in assessing air quality in Lafayette and the surrounding region, supporting public health protection and regulatory compliance. Data from this station contributes to the EPA's national air quality trends analysis and helps inform local air quality management decisions. The station's continuous operation ensures long-term data collection for environmental monitoring.

Lafayette, Indiana, is situated in the Wabash River Valley, an area with mixed industrial and agricultural land use. Air quality monitoring in this region focuses on pollutants from transportation, power generation, and agricultural activities. The station's location at a substation allows for assessment of potential emissions from energy infrastructure. Parameter coverage typically includes criteria pollutants and meteorological parameters, with siting designed to represent urban background conditions. Reporting continuity is maintained through the Indiana Department of Environmental Management's adherence to EPA quality assurance protocols.