Maine Atmospheric Deposition Monitoring Program

Maine's Air program was created in response to Federal requirements
under 110 of the Clean Air Act (1970). 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.