Flint Hills Refinery 420 Air Monitoring Station, Rosemount, Minnesota

Flint Hills Refinery 420 is an air monitoring station located at 12821 Pine Bend Trail in Rosemount, Dakota County, Minnesota, United States. The station is operational and falls under the regulatory oversight of the Minnesota Pollution Control Agency, Division of Air Quality. As part of the broader US EPA Air Quality System (AQS) network, this facility contributes to national ambient air quality monitoring efforts. The station's last reported sample date is June 30, 2025, indicating recent and ongoing data collection. While specific parameters measured are not detailed in available records, typical air monitoring stations in Minnesota track criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, in compliance with the Clean Air Act and National Ambient Air Quality Standards (NAAQS). The station's siting in an industrial area near a refinery suggests a focus on source-oriented monitoring. Environmental monitoring at this location supports local air quality management and public health protection. Data from this station helps assess compliance with federal standards, inform emission reduction strategies, and provide community-level air quality information. The station's role is significant for the Rosemount area and the broader Twin Cities metropolitan region, where industrial and urban emissions are key concerns.

The Flint Hills Refinery 420 air monitoring station is situated in an industrial area of Rosemount, Minnesota, near a major petroleum refinery. This context influences the station's monitoring priorities, which likely include sulfur dioxide, volatile organic compounds, and particulate matter associated with refinery operations. The station's data contributes to understanding local air quality impacts from industrial sources and supports regulatory compliance under the US EPA's AQS framework. Minnesota's air quality monitoring network emphasizes both urban and industrial source areas to protect public health and the environment.