Portland - SE 89th Ave & SE Brooklyn St Air Monitoring Station, Portland, Oregon

Portland - SE 89th Ave & SE Brooklyn St is an air monitoring station located in Portland, Multnomah County, Oregon, United States. Operated by the Oregon Department of Environmental Quality, this station is part of the national ambient air quality monitoring network that supports the US EPA Air Quality System (AQS). The station is currently operational and contributes to the assessment of air quality in the Portland metropolitan area. As a regulatory air monitoring station, it measures criteria pollutants in accordance with the National Ambient Air Quality Standards (NAAQS) established under the Clean Air Act. The station's siting follows EPA guidelines to ensure representativeness of population exposure. Typical parameters include ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station also supports state implementation plans for air quality management. The data collected at this station is used for public health advisories, regulatory compliance, and trend analysis. Portland's air quality is influenced by urban emissions, industrial activity, and seasonal wildfires. This station plays a key role in monitoring pollution levels and supporting the Oregon Department of Environmental Quality's efforts to maintain healthy air quality for residents.

Portland, Oregon, experiences a temperate climate with occasional inversions that can trap pollutants. The station's location in a residential-commercial area provides representative data for population exposure. Monitoring criteria pollutants helps track compliance with NAAQS and supports regional air quality planning. The station's reporting to the EPA AQS ensures data continuity and comparability across the national network.