Overview
MPCA SITE 4401 & 4402 is an air monitoring station in rural Renville County, Minnesota, operated by the Minnesota Pollution Control Agency. It monitors ambient air quality as part of the US EPA Air Quality System network.
MPCA SITE 4401 & 4402 is an air monitoring station located in rural Renville County, Minnesota, near the town of Olivia. Operated by the Minnesota Pollution Control Agency's Division of Air Quality, this station is part of the broader US EPA Air Quality System (AQS) network, which collects ambient air quality data across the United States. As a fixed monitoring site, it contributes to the assessment of criteria pollutants and other atmospheric parameters. The station operates under the regulatory framework of the Clean Air Act and EPA ambient air quality standards. Typical air monitoring stations in Minnesota measure pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The site's rural location provides background air quality data that helps distinguish regional pollution from local urban sources. The Minnesota Pollution Control Agency ensures data quality through standard operating procedures and regular calibration. This monitoring station plays a key role in tracking air quality trends in south-central Minnesota, supporting public health protection and environmental management. Data from this site informs state implementation plans for attaining National Ambient Air Quality Standards (NAAQS) and contributes to regional air quality assessments. The station's long-term operation ensures continuity of records valuable for climate and air pollution research.
Environmental context
Located in an agricultural region of Minnesota, this air monitoring station captures background air quality influenced by farming activities, including ammonia emissions from fertilizers and particulate matter from soil tillage. The site's rural setting provides a baseline for assessing regional transport of pollutants from distant urban and industrial sources. Monitoring at this location helps evaluate the effectiveness of emission reduction strategies and supports compliance with EPA's NAAQS.
Frequently asked questions
MPCA SITE 4401 & 4402 is located in rural Renville County, Minnesota, near the town of Olivia. The address is Rural Route 1, Olivia, MN.
As an air monitoring station in the EPA AQS network, it likely monitors criteria pollutants such as ozone, particulate matter (PM2.5, PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. Specific parameters are determined by the Minnesota Pollution Control Agency.
The station is operated by the Minnesota Pollution Control Agency, Division of Air Quality, which is responsible for ambient air monitoring across the state.
The station operates under the US Clean Air Act and EPA National Ambient Air Quality Standards (NAAQS). Data is reported to the EPA Air Quality System (AQS) and used for state implementation plans and public health assessments.
Rural stations like this provide background air quality data that helps distinguish regional pollution from local urban sources. They are essential for understanding agricultural emissions, regional transport of pollutants, and long-term trends in air quality.
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