Auburn-Atwood Air Monitoring Station, Auburn, California | Environmental Monitoring Facility

Auburn-Atwood is an operational air monitoring station located at 11645 Atwood Street in Auburn, Placer County, California. It is part of the California Air Resources Board's monitoring network, which feeds data into the US EPA Air Quality System (AQS). The station plays a role in tracking ambient air quality in the Sierra Nevada foothills region. The station operates under the regulatory framework of the US Clean Air Act and the EPA's National Ambient Air Quality Standards (NAAQS). Typical air monitoring stations in California measure criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. Some stations also include meteorological parameters and speciation data. The station's last reported sample date is August 31, 2025, indicating recent active reporting. Auburn-Atwood's location in Placer County provides coverage for a mixed urban and rural area, with influences from transportation, residential sources, and seasonal wildfire smoke. The data collected supports public health advisories, regulatory compliance, and air quality forecasting for the Sacramento Valley region. Continuous operation ensures long-term trend analysis and community awareness.

The Auburn-Atwood station monitors air quality in the Sierra Nevada foothills, an area influenced by urban emissions from Sacramento, agricultural activities in the Central Valley, and seasonal wildfires. The station's siting is representative of suburban and rural exposure, capturing pollutants transported from upwind sources. Parameter coverage typically includes criteria pollutants and may include meteorological data, supporting the California Air Resources Board's efforts to meet EPA NAAQS and provide public health information.