Overview
Portland - Roosevelt High School (PRH) is an operational air monitoring station in Portland, Oregon, operated by the Oregon Department of Environmental Quality. It contributes to the US EPA Air Quality System network, tracking criteria pollutants to
Portland - Roosevelt High School (PRH) is an air monitoring station located at 6941 N Central Avenue in Portland, Multnomah County, Oregon, United States. Operated by the Oregon Department of Environmental Quality, this station is part of a statewide network that feeds data into the US EPA Air Quality System (AQS), the national repository for ambient air quality data. As a fixed-site monitor, it provides continuous measurements essential for assessing compliance with National Ambient Air Quality Standards (NAAQS). The station operates under the regulatory framework of the Clean Air Act and EPA monitoring requirements, which mandate criteria pollutant monitoring (e.g., ozone, PM2.5, nitrogen dioxide) in urban areas. Portland's air quality is influenced by industrial emissions, vehicle traffic, and geographic factors such as the Columbia River Gorge. The station's location at a high school ensures representative sampling of residential and school-adjacent microenvironments. Environmental monitoring at this site supports local air quality management, public health advisories, and regional planning. Data from PRH contributes to the Portland-Vancouver-Hillsboro metropolitan area's air quality index and informs state implementation plans for reducing pollution. The station's long-term operation ensures continuity in tracking trends and evaluating the effectiveness of emission reduction strategies.
Environmental context
Portland's air quality is shaped by a mix of urban sources including transportation, industrial activities (e.g., manufacturing, port operations), and wood smoke from residential heating. The city's location in the Willamette Valley can trap pollutants during temperature inversions. Monitoring stations like PRH measure criteria pollutants (ozone, PM2.5, PM10, nitrogen dioxide, sulfur dioxide, carbon monoxide, lead) to assess compliance with NAAQS. The Oregon Department of Environmental Quality uses this data for air quality index reporting, health advisories, and regulatory actions. Siting at a high school provides representative exposure data for a residential area near industrial zones.
Frequently asked questions
The station is located at 6941 N Central Avenue in Portland, Multnomah County, Oregon, United States.
As part of the US EPA Air Quality System, the station monitors criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, in accordance with National Ambient Air Quality Standards.
The station is operated by the Oregon Department of Environmental Quality (DEQ), which manages the state's ambient air monitoring network.
Air monitoring stations in the US operate under the Clean Air Act and are part of the EPA's Air Quality System (AQS). They must follow monitoring requirements specified in 40 CFR Part 58, including siting criteria, quality assurance, and data reporting standards.
Data from this station helps calculate the Air Quality Index (AQI) for the Portland area, supports public health advisories, and informs state implementation plans for reducing air pollution to meet NAAQS.
Other Air Monitoring Station plants in United States · 6 nearby