Overview
Lewistown Air Monitoring Station in Montana, operated by the MT Dept of Environmental Quality, provides ambient air quality data for Fergus County. It supports compliance with US EPA National Ambient Air Quality Standards.
Lewistown is an air monitoring station located at 303 East Aztec Drive in Lewistown, Montana, within Fergus County. It is operated by the Montana Department of Environmental Quality, Air Quality Division, and is part of the broader US EPA Air Quality System (AQS) network. The station is operational and contributes to regional air quality surveillance. The station operates under the regulatory framework of the US Clean Air Act and EPA National Ambient Air Quality Standards (NAAQS). As a state-operated monitor, it typically measures criteria pollutants such as ozone, particulate matter, or others, depending on siting objectives. The station's last reported sample date is June 30, 2025, indicating ongoing data collection. Located in a rural area of central Montana, the station helps characterize background air quality and potential impacts from local sources such as agriculture or transportation. Its data supports public health assessments and state implementation plans for air quality management. The station's role is vital for maintaining compliance with federal standards and protecting community health.
Environmental context
The Lewistown station is situated in a rural agricultural region of Montana, where air quality monitoring focuses on background pollutant levels and occasional impacts from farming activities, wildfires, and winter inversions. Parameter coverage typically includes criteria pollutants like PM2.5 and ozone, with siting representative of regional conditions. Reporting continuity is maintained through the state agency, ensuring data flows into the EPA AQS network for regulatory compliance and public access.
Frequently asked questions
The Lewistown Air Monitoring Station is located at 303 East Aztec Drive, Lewistown, Montana 59457, in Fergus County, United States.
The station is operated by the Montana Department of Environmental Quality, Air Quality Division, which reports data to the US EPA Air Quality System.
As a typical state-operated air monitoring station, it likely measures criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), and possibly nitrogen dioxide, in accordance with EPA NAAQS requirements.
Air monitoring in Montana is governed by the US Clean Air Act and EPA National Ambient Air Quality Standards (NAAQS). The Montana DEQ operates monitors that feed into the EPA Air Quality System (AQS) for compliance and public reporting.
The station provides continuous ambient air quality data that helps assess regional background pollution, support state implementation plans, and inform public health advisories, especially during wildfire events or winter inversions.
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