Overview
La Grande - North WILLOW (LDR) is an air monitoring station in La Grande, Oregon, operated by the Oregon Department of Environmental Quality. It monitors ambient air quality as part of the US EPA AQS network.
La Grande - North WILLOW (LDR) is an air monitoring station located at 161 N Willow in La Grande, Oregon, within Union County. It is part of the United States Environmental Protection Agency's Air Quality System (AQS) network, which collects ambient air quality data nationwide. The station is operated by the Oregon Department of Environmental Quality and is currently operational. As an air monitoring station, it measures criteria pollutants and other atmospheric parameters to assess compliance with National Ambient Air Quality Standards (NAAQS). The station's siting follows EPA guidelines for representativeness, ensuring data reflects local air quality conditions. Typical parameters include ozone, particulate matter, nitrogen dioxide, and sulfur dioxide, though specific instrumentation may vary. The station serves the La Grande community by providing data for public health advisories and regulatory compliance. Its location in northeastern Oregon, near the Blue Mountains, contributes to understanding regional air quality patterns, including influences from agricultural activities and seasonal wildfires. This data supports state and federal efforts to protect public health and the environment.
Environmental context
La Grande is situated in the Grande Ronde Valley, surrounded by agricultural lands and forests. Air quality in the region can be affected by agricultural burning, vehicle emissions, and occasional wildfire smoke. The monitoring station helps track pollutants such as PM2.5 and ozone, which are relevant to local respiratory health. Its data contributes to the Oregon DEQ's air quality management and EPA's national assessments.
Frequently asked questions
The station is located at 161 N Willow in La Grande, Oregon, within Union County, United States.
As part of the EPA AQS network, it measures criteria pollutants such as ozone, particulate matter, nitrogen dioxide, and sulfur dioxide to assess compliance with National Ambient Air Quality Standards.
The station is operated by the Oregon Department of Environmental Quality (DEQ), which manages air quality monitoring across the state.
Air monitoring stations in the US operate under the Clean Air Act and are part of the EPA's Air Quality System (AQS) network, which sets standards for monitoring methods, siting, and data reporting.
Air monitoring in La Grande helps track pollutants from agricultural activities, vehicle emissions, and wildfires, supporting public health advisories and regulatory compliance with NAAQS.
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