Mercury in the Air
Dr. Kevin D. Perry
Department of Atmospheric Sciences
University of Utah
Speciated measurements of atmospheric mercury have been made at the UT96 AMNet site sinceJuly 1, 2009 using a Tekran® Ambient Air Mercury Monitor. The UT96 site is located on theeastern shore of the Great Salt Lake and is subjected to daily lake/land breeze wind reversals.These wind reversals alternately bring air to the receptor site from over the lake (daytime)and from the adjacent urbanized areas (nighttime). The site is also periodically impacted bynortherly winds after the passage of cold fronts. These northerly breezes do not pass over thelake or urbanized regions and typically result in pristine (i.e., background) concentrations ofatmospheric mercury. The net result of these wind patterns is a single site that can be used tostudy background mercury concentrations, interactions with a marine-like boundary layer, andlocal/regional pollution sources.