McCall Air Monitoring Station - Idaho Department of Health and Welfare

McCall is an Air Monitoring Station located at 500 North Mission in McCall, Idaho, United States. Operated by the Idaho Department of Health and Welfare-Environment Division, it is part of the state's ambient air quality monitoring network. The station contributes to the US EPA Air Quality System (AQS) by collecting data on criteria pollutants and meteorological parameters. The station operates under the regulatory framework of the US Clean Air Act and EPA monitoring requirements. It provides continuous or periodic sampling to assess air quality in the rural mountain setting of Valley County. Typical monitoring includes ozone, particulate matter, and meteorological parameters, supporting compliance with National Ambient Air Quality Standards (NAAQS). As a rural monitoring site, McCall helps characterize background air quality in the Rocky Mountain region. Its data supports public health advisories, regulatory compliance, and research on regional air quality trends. The station's long-term operation ensures continuity in monitoring, which is vital for detecting changes in air quality due to wildfires, transportation, or other sources.

McCall is situated in a mountainous region of Idaho, where air quality can be influenced by wildfire smoke, vehicle emissions, and long-range transport of pollutants. The station's siting is representative of rural background conditions, providing baseline data for comparison with urban areas. Monitoring parameters typically include ozone and particulate matter, which are critical for assessing compliance with NAAQS and understanding regional air quality dynamics.