National Atmospheric Deposition Program

The National Atmospheric Deposition Program (NADP) was organized in 1977 for long-term monitoring of atmospheric chemical deposition. The NADP operates three networks that monitor precipitation chemistry at more than 300 sites. It is a cooperative program receiving support from federal, state, and local government agencies; Native American organizations; State Agricultural Experiment Stations; universities; and non-governmental organizations. The NADP Program Office and Central Analytical Laboratory were based at the Illinois State Water Survey in Champaign, IL from the late 1970s until 2017, when the program relocated to University of Wisconsin's State Laboratory of Hygiene. This community holds reports produced during the time NADP was headquartered here. NADP data and documents produced after their departure from Illinois is available on the program website.

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