National Atmospheric Deposition Program

The National Atmospheric Deposition Program (NADP) serves science and education and supports informed decisions on air quality issues related to precipitation chemistry. NADP is a cooperative effort between many different groups, including federal, state, tribal and local governmental agencies, education institutions, private companies, and non-governmental agencies. It was established in 1977 under State Agricultural Experiment Station (SAES) leadership to address the problem of atmospheric deposition and its effects on agricultural crops, forests, rangelands, surface waters, and other natural and cultural resources. Since its inception, NADP has grown to six monitoring networks: * National Trends Network (NTN) * Mercury Deposition Network (MDN) * Atmospheric Mercury Network (AMNet) * Ammonia Monitoring Network (AMON) * Mercury Litterfall Network (MLN) * Atmospheric Integrated Research Monitoring Network (AIRMoN) - Closed in 2019 Disclaimer: The opinions, findings, and conclusions or recommendations expressed in posts (or article referenced by the post) are those of the authors and do not necessarily represent the views or policies of the National Atmospheric Deposition Program, the program sponsors, or the University of Wisconsin-Madison.