Mammoth Cave NP Air Monitoring Station | CASTNET Network, Kentucky

Mammoth Cave NP is an air monitoring station located at Alfred Cook Road within Mammoth Cave National Park in Kentucky, United States. It is part of the Clean Air Status and Trends Network (CASTNET), a national program designed to assess the effectiveness of emission control programs. The station is operated by Mactec, Inc. and reports data to the US EPA, contributing to the broader Air Quality System (AQS) monitoring network. The station measures key atmospheric parameters including ozone, sulfur dioxide, nitrogen oxides, and particulate matter, following EPA-approved methods. CASTNET sites are typically located in rural areas to monitor regional air quality and long-term trends. The station's last sample date was December 24, 2024, indicating ongoing operations. Its siting in a national park provides representative background conditions for the eastern United States. As part of a national network, Mammoth Cave NP supports regulatory compliance with the Clean Air Act and provides data for ecosystem health assessments. The station's rural location helps distinguish regional pollution from local sources, aiding in policy evaluation. Its continuous operation contributes to understanding air quality trends in the Kentucky region and the broader Appalachian area.

Mammoth Cave NP operates within the CASTNET network, which focuses on rural and remote sites to monitor regional air quality. The station measures criteria pollutants and atmospheric deposition, supporting the US EPA's AQS network. Its location in a national park provides a baseline for assessing human-caused pollution impacts on sensitive ecosystems. The data helps evaluate the effectiveness of emission reduction programs under the Clean Air Act.