NTN Slide

National Trends Network

The NTN provides a long-term record of the acids, nutrients, and base cations in the U.S. Precipitation

MDN Slide

Mercury Deposition Network

The MDN provides data on the geographic distributions and trends of mercury in precipitation.

AMoN Slide

Ammonia Monitoring Network

The AMON measures air concentration of ammonia using passive monitors

AMNet Slide

Atmospheric Mercury Network

The AMNet reports atmospheric mercury concentrations for determination of mercury dry deposition.

MLN Slide

Mercury Litterfall Network

The MLN provides an estimate of an important component of mercury dry deposition to a forested landscape

Meetings

NADP Fall Business Meeting
Virtual
Oct 28-30, 2025 (Tentative)