Overview
Eugene - Highway 99 (E99) is an air monitoring station in Eugene, 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.
Eugene - Highway 99 (E99) is an air monitoring station located at 530 Pacific Highway N in Eugene, 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 contributes to the assessment of criteria pollutants and other air quality parameters in the Eugene-Springfield metropolitan area. The station operates under the regulatory framework of the US Clean Air Act, which mandates monitoring of pollutants such as ozone, particulate matter, carbon monoxide, nitrogen dioxide, sulfur dioxide, and lead. As a site within Oregon's state network, it follows EPA siting criteria for representativeness and data quality. The station's last reported sample date is June 30, 2025, indicating ongoing data collection. Eugene - Highway 99 (E99) plays a key role in characterizing air quality in a region influenced by transportation emissions, industrial activity, and seasonal wildfire smoke. Its data supports public health advisories, regulatory compliance, and air quality trend analysis. The station is part of a broader network that helps Oregon meet National Ambient Air Quality Standards (NAAQS).
Environmental context
Eugene is located in the Willamette Valley, where air quality can be affected by vehicle emissions, wood burning, and occasional wildfire smoke. The Highway 99 site is positioned near a major arterial road, making it representative of near-roadway exposure. Monitoring at this station typically includes criteria pollutants and may include meteorological parameters. The data contributes to understanding local air pollution patterns and supports the Oregon Department of Environmental Quality's efforts to maintain compliance with federal air quality standards.
Frequently asked questions
The station is located at 530 Pacific Highway N in Eugene, Oregon, United States, in Lane County.
As part of the US EPA Air Quality System, the station typically measures criteria pollutants such as ozone, particulate matter, carbon monoxide, nitrogen dioxide, sulfur dioxide, and lead, along with meteorological parameters.
The station is operated by the Oregon Department of Environmental Quality (ODEQ), which manages the state's ambient air quality monitoring network.
Air monitoring stations in the US operate under the Clean Air Act and are part of the EPA Air Quality System (AQS), which sets standards for monitoring methods, siting, and data reporting to ensure compliance with National Ambient Air Quality Standards (NAAQS).
Air monitoring in Eugene helps track pollutants from transportation, industry, and seasonal wildfire smoke, supporting public health advisories and regulatory actions to maintain air quality standards.
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