Ellwood City Air Monitoring Station | Pennsylvania, USA

Ellwood City is an air monitoring station located at 3 Fountain Ave in Lawrence County, Pennsylvania, United States. Operated by the Pennsylvania Department of Environmental Protection, this station is part of the state's ambient air quality monitoring network, which supports compliance with the Clean Air Act and National Ambient Air Quality Standards (NAAQS). The station's last reported sample date is October 27, 2024, indicating ongoing data collection. The station operates under the regulatory framework of the U.S. EPA's Air Quality System (AQS), which governs monitoring methods, siting criteria, and data reporting. As a state-managed station, it likely measures criteria pollutants such as ozone, particulate matter, or nitrogen dioxide, though specific parameters are not detailed. The station's location in a non-urban area suggests it may serve as a background or transport monitoring site. Ellwood City's monitoring contributes to regional air quality assessment in western Pennsylvania, an area with industrial and agricultural influences. The data supports public health advisories, regulatory compliance, and long-term trend analysis. The station's operational status and recent sampling demonstrate its role in maintaining continuous air quality surveillance for the community.

The station's location in Lawrence County, Pennsylvania, places it in a region with a mix of industrial history, agriculture, and residential areas. Air quality monitoring here is important for tracking pollutants from local sources such as manufacturing and transportation, as well as regional transport from the Ohio River Valley. The station's data helps assess compliance with NAAQS and supports studies on ozone and particulate matter patterns in the Mid-Atlantic region.