Piney Run Air Monitoring Station, Grantsville, Maryland | NCORE Network

Piney Run is an air monitoring station located in Grantsville, Garrett County, Maryland, United States. It is part of the NCORE (National Core) network, which provides high-quality, long-term measurements of criteria pollutants and meteorological parameters to support air quality management and research. The station is operated by the Maryland Department of the Environment and is currently operational. The station operates under the US EPA's Air Quality System (AQS) framework, which sets standards for monitoring methods, quality assurance, and data reporting. NCORE stations are designed to represent regional background air quality, often sited away from local emission sources. Typical measurements include PM2.5, ozone, nitrogen oxides, sulfur dioxide, carbon monoxide, and meteorological variables such as wind speed and direction. As part of the NCORE network, Piney Run contributes to understanding long-term trends in air quality and the effectiveness of emission reduction policies. Its location in a rural area of western Maryland provides valuable data on regional transport of pollutants and background concentrations, supporting both regulatory compliance and scientific research.

Piney Run is situated in a rural area of Garrett County, Maryland, within the Appalachian region. The local environment is characterized by forested terrain and moderate population density. Air quality in the region can be influenced by transported pollutants from urban and industrial areas to the west and east. The station's NCORE designation ensures comprehensive monitoring of criteria pollutants and meteorological parameters, which is essential for assessing regional air quality trends and the impact of long-range transport. The data supports the US EPA's regulatory programs and helps inform public health advisories.