Corvallis - Circle Boulevard (CCB) Air Monitoring Station, Corvallis, Oregon

Corvallis - Circle Boulevard (CCB) is an air monitoring station located at 1310 NW Circle Boulevard in Corvallis, Oregon, United States. Operated by the Oregon Department of Environmental Quality, this station is part of the state's ambient air quality monitoring network, which supports compliance with the U.S. EPA's National Ambient Air Quality Standards (NAAQS). The station is situated in a residential area of Corvallis, providing representative data for urban air quality. The station's technical specifications include a last reported sample date of July 26, 2022, indicating recent operational activity. As part of the Oregon DEQ network, the station likely measures criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, in accordance with EPA monitoring requirements. The station may also collect meteorological parameters to support air quality modeling and forecasting. Environmental monitoring at this station contributes to public health protection by tracking pollutant levels in the Willamette Valley. The data supports regulatory compliance, air quality index reporting, and community awareness. Corvallis, home to Oregon State University, benefits from this monitoring as part of broader efforts to maintain air quality in a region with agricultural and urban influences.

The Corvallis area is located in the Willamette Valley, a region with a mix of urban, agricultural, and forested land uses. Air quality can be influenced by seasonal wildfires, agricultural burning, and vehicle emissions. The monitoring station's location on Circle Boulevard provides representative sampling of urban background air quality. Parameter coverage typically includes criteria pollutants and meteorological data, supporting the EPA's Air Quality System (AQS) network. Siting follows EPA guidelines to ensure data representativeness for population exposure assessment.