Great Falls Overlook Park Air Monitoring Station | Great Falls, Montana

Great Falls Overlook Park is an air monitoring station located in Great Falls, Cascade County, Montana, United States. It is part of the state's ambient air quality surveillance network operated by the Montana Department of Environmental Quality, Air Quality Division. The station provides data on criteria pollutants and meteorological parameters to support regulatory compliance and public health assessments. The station operates under the framework of the US EPA Air Quality System (AQS), which sets standards for monitoring methods, siting criteria, and data reporting. As a fixed-site monitor, it follows EPA siting requirements to ensure representativeness of local air quality. The station's last reported sample date is March 31, 2024, indicating ongoing data collection. Environmental monitoring at this location supports the characterization of air quality in the Great Falls urban area, which is influenced by industrial activities, transportation, and seasonal inversions. The data helps inform local air quality management decisions and public advisories, contributing to the broader national effort to protect human health and the environment.

The Great Falls area experiences air quality challenges from industrial sources, including a copper smelter and other manufacturing, as well as wintertime temperature inversions that trap pollutants. The monitoring station's location in a park provides a representative urban background site. Its parameter coverage typically includes criteria pollutants such as PM2.5, PM10, ozone, and nitrogen dioxide, aligning with EPA requirements for state implementation plans.