Overview
Portland - Sauvie Island (SIS) is an air monitoring station in Columbia County, Oregon, operated by the Oregon Department of Environmental Quality. It provides ambient air quality data as part of the US EPA Air Quality System network.
Portland - Sauvie Island (SIS) is an air monitoring station located at 31421 NW Reeder Road in Columbia County, Oregon, United States. The station is operated by the Oregon Department of Environmental Quality and is part of the national ambient air quality monitoring network. It contributes to the US EPA Air Quality System (AQS), which collects data on criteria pollutants to assess compliance with National Ambient Air Quality Standards (NAAQS). The station's last reported sample date is June 30, 2025, indicating ongoing operational status. While specific parameters measured are not detailed, typical air monitoring stations in Oregon track pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station's location in a rural area near Sauvie Island provides valuable background air quality data, complementing urban monitors in Portland. This monitoring station supports public health by tracking air pollution trends and informing regulatory decisions. Its data helps Oregon DEQ and EPA evaluate air quality improvements and develop strategies to reduce emissions. The station's rural siting is important for understanding regional air transport and background pollutant levels, contributing to a comprehensive monitoring network.
Environmental context
The Sauvie Island area is a rural and agricultural region near the Columbia River, with influences from nearby Portland urban emissions and industrial activities. Air monitoring here helps characterize background pollutant levels and regional transport. The station's data supports the Oregon DEQ's State Implementation Plan for meeting NAAQS, particularly for ozone and particulate matter. Its location also aids in assessing air quality impacts on sensitive ecosystems and agricultural areas.
Frequently asked questions
The station is located at 31421 NW Reeder Road in Columbia County, Oregon, near Sauvie Island, northwest of Portland.
Typical Oregon DEQ stations monitor criteria pollutants including ozone, particulate matter (PM2.5, PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead.
The station is operated by the Oregon Department of Environmental Quality (DEQ) as part of the state's ambient air monitoring network.
The station is part of the EPA's Air Quality System (AQS), which collects and stores ambient air monitoring data from thousands of stations nationwide to assess compliance with NAAQS.
Rural stations like Sauvie Island provide background data on regional air quality, helping distinguish local emissions from transported pollution and supporting effective air quality management.
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