Overview
Portland - Jefferson High School (PJH) 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.
Portland - Jefferson High School (PJH) is an air monitoring station located at 5210 N Kerby Avenue in Portland, Multnomah County, Oregon, United States. Operated by the Oregon Department of Environmental Quality, it is part of the national ambient air quality monitoring network under the US EPA Air Quality System (AQS). The station provides critical data on criteria pollutants to assess compliance with National Ambient Air Quality Standards (NAAQS). As a fixed-site monitor in an urban residential area, PJH captures representative air quality data for Portland's northern neighborhoods. The station's last reported sample date is June 30, 2025, indicating ongoing operation. Typical parameters at such stations include ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, though specific parameters measured at this site are not detailed. The station supports public health protection by informing air quality forecasts and regulatory decisions. Its location near a high school underscores the importance of monitoring in sensitive community areas. Data from PJH contributes to regional air quality trend analysis and helps evaluate the effectiveness of emission reduction strategies in the Portland metropolitan area.
Environmental context
Portland's air quality is influenced by a mix of urban emissions, including vehicle traffic, industrial activities, and wood smoke from residential heating. The city's location in the Willamette Valley can lead to temperature inversions that trap pollutants, especially during winter. Monitoring stations like PJH are essential for tracking ozone and particulate matter levels, which are key health concerns. The Oregon Department of Environmental Quality uses data from this network to issue air quality alerts and develop state implementation plans for meeting NAAQS.
Frequently asked questions
The station is located at 5210 N Kerby Avenue in Portland, Multnomah County, Oregon, United States.
The station is operated by the Oregon Department of Environmental Quality (DEQ).
Typical urban air monitoring stations measure criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead.
The station is part of the US EPA Air Quality System (AQS) network, which supports compliance with National Ambient Air Quality Standards (NAAQS) under the Clean Air Act.
Portland's air quality is affected by vehicle emissions, industrial sources, and wood smoke. Monitoring helps track pollution levels, issue health advisories, and guide emission reduction strategies to protect public health.
Other Air Monitoring Station plants in United States · 6 nearby