Maine Atmospheric Deposition Monitoring Program

Following the establishment of National Ambient Air Quality Standards (NAAQS) for certain air contaminants (See CAA 109), each state was required to adopt and submit a plan for the implementation, maintenance, and enforcement of the national standards within each of its air quality control regions of each state. Maine Dept. of Environmental Services is a cooperating agency in the National Atmospheric Deposition Program (NADP).

The National Atmospheric Deposition Program/National Trends Network (NADP/NTN) is a nationwide network of precipitation monitoring sites. The network is a cooperative effort between many different groups, including the State Agricultural Experiment Stations, U.S. Geological Survey, U.S. Department of Agriculture, and numerous other governmental and private entities.