Portland - Helensview School (PCH) Air Monitoring Station, Portland, Oregon

Portland - Helensview School (PCH) is an air monitoring station located at 8678 NE Summer Street in Portland, Multnomah County, Oregon. It is part of the Oregon Department of Environmental Quality's ambient air monitoring network, which contributes data to the US EPA Air Quality System (AQS). The station is operational and provides continuous air quality measurements to support regulatory compliance and public health protection. The station operates under the framework of the US Clean Air Act and EPA monitoring regulations. Typical air monitoring stations in Oregon measure criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. Some stations also monitor meteorological parameters and air toxics. The station's last reported sample date was June 30, 2025, indicating recent active data collection. This station serves the Portland metropolitan area, a region with diverse air quality challenges including urban emissions, industrial sources, and geographic factors like the Columbia River Gorge. Data from this station supports local air quality management, health advisories, and compliance with National Ambient Air Quality Standards (NAAQS). The station's location in a residential area helps characterize population exposure to air pollutants.

The Portland metropolitan area experiences air quality challenges from transportation, industrial activities, and occasional wildfire smoke. The station's location in a residential school zone provides representative data for community exposure. Monitoring at this site helps track compliance with EPA's NAAQS and supports the Oregon Department of Environmental Quality's air quality management programs. The station's data contributes to regional air quality assessments and public health advisories.