LEXINGTON PRIMARY Air Monitoring Station, Lexington-Fayette, Kentucky | US EPA AQS Network

LEXINGTON PRIMARY is an air monitoring station located at the Fayette County Health Department in Lexington-Fayette, Kentucky, United States. Operated by the Kentucky Division For Air Quality, it is part of the national ambient air monitoring network that supports the US EPA Air Quality System (AQS). The station contributes to the assessment of air quality in the region, which is essential for public health and regulatory compliance. The station is operational and reported a last sample date of June 30, 2025, indicating ongoing data collection. As a primary monitoring site, it likely measures criteria pollutants such as ozone, particulate matter, and nitrogen dioxide, in accordance with EPA monitoring requirements. The station's location in an urban area with mixed residential and commercial activity provides representative data for population exposure. Environmental monitoring in Kentucky is critical due to the state's industrial base, including manufacturing and energy production. The data from LEXINGTON PRIMARY helps track air quality trends, support attainment designations, and inform local air quality management. This station plays a key role in the broader network that ensures compliance with the Clean Air Act and protects community health.

The station is situated in Lexington-Fayette, an urban area with a mix of transportation, commercial, and light industrial sources. Monitoring criteria pollutants here is important for assessing compliance with National Ambient Air Quality Standards (NAAQS). The station's siting at a health department facility ensures representativeness for population exposure. Regular sampling supports trend analysis and regulatory reporting under the US EPA AQS framework.