La Grande - N Hall and E N Sts (LHN) Air Monitoring Station, La Grande, Oregon

La Grande - N Hall and E N Sts (LHN) is an operational Air Monitoring Station located at 1304 N Hall Street in La Grande, Oregon, United States. It is part of the National Air Toxics Trends Stations (NATTS) network, which focuses on monitoring hazardous air pollutants. The station is operated by the Oregon Department of Environmental Quality and contributes to the US EPA's Air Quality System (AQS). The station's technical specifications include its affiliation with the NATTS network, which emphasizes long-term trends in air toxics. The last sample date recorded is June 30, 2025, indicating ongoing data collection. As a NATTS site, it measures a range of toxic air pollutants, complementing the broader criteria pollutant monitoring network. The station's siting in La Grande provides representative data for the local urban and industrial environment. This monitoring station plays a key role in assessing air quality trends and supporting regulatory compliance under the Clean Air Act. Its data helps inform public health assessments and environmental policy decisions in Oregon. The station's continuous operation ensures valuable long-term datasets for understanding air pollution dynamics in the region.

La Grande is located in northeastern Oregon, a region with a mix of agricultural, industrial, and urban influences. The NATTS station at N Hall and E N Sts monitors hazardous air pollutants, providing critical data on air toxics that may arise from local sources such as transportation, manufacturing, and agricultural activities. The station's location within a residential area offers representative sampling for population exposure assessments. Its long-term operation supports trend analysis and regulatory evaluations under the Clean Air Act.