Three MDN sites in MD:

1
Mercury Deposition Network

• Three MDN sites in MD
• MD99 Beltsville operated by UMD/College Park
• Wet deposition, Tekran air monitoring, AMNET
  station
• MD08 Frostburg- operated by UMCES
• Wet deposition, Tekran air monitoring
• MD00 -Edgewater operated by SERC
• Wet deposition

2
MDN Sites in the Chesapeake Watershed Green
active Red Discontinued
3
(No Transcript)
4
(No Transcript)
5
Annual volume-weighted Hg concentrations in wet
deposition
6
Source Weiss, Gay, Brigham, Parsons and Ter
Schure, NADP presentation 2014
7
2005-2013
Source Weiss et al. NADP presentation 2014
8
Annual trends in Hg Deposition SMK PWM residual
method
2008-2013
1998-2013
Sites marked with a star have trends that are
significant (p lt 0.1).
Source Weiss, Gay et al. Canadian Geophysical
Union Joint Assembly, May 2015