Maps & Data
National Trends Network
The NTN provides a long-term record of the acids, nutrients, and base cations in U.S. precipitation.
Mercury Deposition Network
The MDN provides data on the geographic distributions and trends of mercury in precipitation.
Atmospheric Integrated Research Monitoring Network
The AIRMoN reports daily measurements for studying and modeling atmospheric processes.
Monitoring our changing Chemical Climate.
The NADP has been monitoring precipitation chemistry since 1978.
› Learn more about NADP's history.
Atmospheric Mercury Network
The AMNet reports atmospheric mercury concentrations for determination of mercury dry deposition.
Ammonia Monitoring Network
The AMON measures air concentration of ammonia using passive monitors
Spring 2014 NADP Subcommittee Meeting
April 14-17, 2014
Fort Lauderdale, FL
Feature article about NADP
in Earth Magazine
Presentations from the
2012 Annual Meeting & Symposia
are now online
Litterfall Mercury Monitoring
is NADP's latest initiative.
Fukushima Dai-ichi radioactive fallout detected in NADP samples-
2011 NAPAP Report to Congress
has been released
The Total Deposition Science Committee (
) is NADP's newest committee.
© 2012 National Atmospheric Deposition Program |
Data Use Conditions