Northeast Coastal and Barrier Network
The Northeast Coastal and Barrier Vital Signs Network (NCBN) consists of eight NPS units along the Northeast U.S. coastline. The parks include cultural, historical and natural areas. All units are designated Class II air quality areas.
With the exception of Assateague Island National Seashore (NS) and Cape Cod NS, the Network parks have no on-site ambient air quality monitoring; however, in most cases, there are nearby monitors. The air pollutants of significant concern for the NCBN are ozone and nitrogen deposition. Six of the Network parks are in designated ozone nonattainment areas. An ozone injury risk assessment indicates Assateague Island NS has a moderate risk of injury; the risk in the rest of the Network parks is high.
The Network map below provides information on air quality monitoring. Ozone, sulfur dioxide, dry deposition, and meteorology are collected by the Clean Air Status and Trends (CASTNet) and Gaseous Pollutant Monitoring (GPMN) networks. Ozone is also monitored with passive samplers and portable continuous analyzers. Wet Deposition is monitored through cooperation with National Atmospheric Deposition Program/National Trends Network (NADP/NTN). The Mercury Deposition Network (MDN), part of NADP, collects precipitation samples that are analyzed for mercury. Visibility is monitored as part of the Interagency Monitoring of Protected Visual Environments (IMPROVE). Additional details on these parameters are described in Air Quality Monitoring.
Air quality monitoring in or near the network is indicated on the map by symbols, with the blue line showing the approximate borders of the network. The legend shows the symbols for the type of monitoring present, with NPS park units in green.