Overview
CETL - Cape Elizabeth Two Lights (State Park) is an air monitoring station in Maine, USA, operated by the Maine D.E.P. Bureau of Air Quality Control. It provides ambient air quality data as part of the EPA Air Quality System network.
CETL - Cape Elizabeth Two Lights (State Park) is an air monitoring station located at Two Lights State Park near the observation tower in Cape Elizabeth, Cumberland County, Maine, United States. The station is operated by the Maine D.E.P. Bureau of Air Quality Control and is part of the broader EPA Air Quality System (AQS) network, which monitors criteria pollutants and other atmospheric parameters across the country. The station's last reported sample date is October 25, 2022, indicating ongoing data collection. As a state-operated site, it contributes to regional air quality assessments and compliance with the National Ambient Air Quality Standards (NAAQS). Typical monitoring at such stations includes ozone, particulate matter, and meteorological parameters, though specific parameters measured at this site are not detailed. Located in a coastal state park, the station provides valuable background air quality data for the Gulf of Maine region. Its siting in a recreational area helps assess air quality impacts from both local and transported pollution, supporting public health and environmental management efforts in Maine.
Environmental context
The station's coastal location in a state park offers a representative background site for monitoring regional air quality, away from direct urban or industrial sources. This siting is important for understanding long-range transport of pollutants and for establishing baseline conditions. The data supports Maine's compliance with the Clean Air Act and contributes to the EPA's national air quality assessments.
Frequently asked questions
The station is located at Two Lights State Park near the observation tower in Cape Elizabeth, Cumberland County, Maine, United States.
The station is operated by the Maine D.E.P. Bureau of Air Quality Control, which reports data to the EPA Air Quality System.
Typical EPA AQS stations monitor criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, along with meteorological data.
Air monitoring in the U.S. is governed by the Clean Air Act and implemented through the EPA's Air Quality System (AQS) network, which sets National Ambient Air Quality Standards (NAAQS) for criteria pollutants.
Coastal monitoring stations like this one help assess background air quality, track pollution transport from upwind regions, and evaluate the impact of local sources, supporting public health and environmental protection in the Gulf of Maine area.
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