JCG: Jonesport Coast Guard Air Monitoring Station - Jonesport, Maine

JCG: Jonesport Coast Guard is an air monitoring station located at 9 Bridge St, Jonesport, Maine, within Washington County. Operated by the Maine Department of Environmental Protection's Bureau of Air Quality Control, this station is part of the broader US EPA Air Quality System (AQS) network, which monitors criteria pollutants and other atmospheric parameters to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station's last reported sample date is October 15, 2025, indicating ongoing data collection. While specific parameters measured are not detailed, typical air monitoring stations in Maine track pollutants such as ozone, particulate matter (PM2.5 and PM10), sulfur dioxide, nitrogen dioxide, and carbon monoxide. The station's coastal location in Jonesport provides representative data for the region's air quality, influenced by marine air masses and local emissions. Environmental monitoring in this area supports public health protection and regulatory compliance under the Clean Air Act. The data contributes to regional air quality assessments, helping to identify trends and inform policy decisions. The station's role is significant for understanding air quality in a rural coastal setting, where background levels and transport of pollutants are key concerns.

The Jonesport area is a coastal community in eastern Maine, characterized by a mix of marine and forested environments. Air quality here is influenced by clean Atlantic air masses, but also by long-range transport of pollutants from industrial regions. The monitoring station helps assess background ozone and particulate levels, which are critical for understanding regional air quality trends and compliance with EPA standards. Its coastal siting provides valuable data on marine-influenced atmospheric chemistry.