West Side Air Monitoring Station, St. Paul, Minnesota | Environmental Monitoring

West Side is an air monitoring station located at 515 Concord St in St. Paul, Minnesota, within the United States. It is part of the national ambient air quality monitoring network and is operated by the Minnesota Pollution Control Agency, Division of Air Quality. The station contributes to the US EPA Air Quality System (AQS), which collects data on criteria pollutants to assess compliance with National Ambient Air Quality Standards (NAAQS). The station's last reported sample date is June 30, 2025, indicating ongoing operational status. While specific parameters measured are not detailed, typical urban monitoring stations in Minnesota measure pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station's location in a residential area of St. Paul provides representative data for population exposure assessment. Environmental monitoring at West Side supports air quality management in the Twin Cities metropolitan area. Data from this station helps inform public health advisories, regulatory compliance, and emission reduction strategies. The Minnesota Pollution Control Agency uses such monitoring to track trends and ensure air quality meets health-based standards, benefiting local communities and ecosystems.

St. Paul is part of the Minneapolis-St. Paul metropolitan area, which has a mix of industrial, transportation, and residential sources affecting air quality. The region experiences cold winters and warm summers, influencing pollutant dispersion and formation. Monitoring stations like West Side are sited to capture representative urban background concentrations. The station's data contributes to the US EPA AQS network, supporting assessments of regional air quality trends and compliance with NAAQS. Parameter coverage typically includes criteria pollutants and meteorological parameters, though speciation monitoring may be limited.