Alcoa East Air Monitoring Station, St. Lawrence County, New York

Alcoa East is an air monitoring station located at 2019 NY-131 in St. Lawrence County, New York, United States. It is part of the New York State Department of Environmental Conservation's ambient air quality monitoring network, which tracks criteria pollutants and other atmospheric parameters to ensure compliance with the Clean Air Act and National Ambient Air Quality Standards (NAAQS). The station operates under the regulatory framework of the US EPA's Air Quality System (AQS), which standardizes data collection and reporting across thousands of monitoring sites nationwide. While specific parameters measured at Alcoa East are not detailed in available records, typical air monitoring stations in New York measure pollutants such as ozone, particulate matter (PM2.5 and PM10), sulfur dioxide, nitrogen dioxide, carbon monoxide, and lead, along with meteorological variables like wind speed and direction. Alcoa East contributes to regional air quality assessment in St. Lawrence County, an area influenced by industrial activities and transboundary pollution from Canada. The data collected supports public health advisories, regulatory compliance, and long-term trend analysis. As part of the DEC's network, it plays a role in protecting community health and informing environmental policy.

St. Lawrence County is located in northern New York, bordering Canada, and features a mix of rural, agricultural, and industrial land uses. The region is downwind of major industrial centers in the Great Lakes basin and can experience transported air pollution. Air monitoring stations like Alcoa East are critical for tracking ozone and particulate matter levels, which can affect respiratory health and visibility. The station's siting near a state highway (NY-131) provides representative data for local air quality, supporting the DEC's efforts to meet EPA standards and inform the public.