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Estimation of speciated and total mercury dry deposition at monitoring locations in Eastern and Central North America
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Narayan, J., Zhang, L., Gay, D.A., Miller, E.K., Dalziel, J., Zsolway, R., Holsen, T.M., St. Louis, V.L., Prestbo, E.M., Johnson, D., Risch, M.R., Graydon, J.A., Blanchard, P., Castro, M.S.
Dry deposition of speciated mercury, i.e., gaseous oxidized mercury (GOM), particulate bound mercury (PBM), and gaseous elemental mercury (GEM), was estimated for the year 2008–2009 at 19 monitoring locations in Eastern and Central North America. Dry deposition estimates were obtained by...
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Gas-particle partitioning of atmospheric Hg(II) and its effect on global mercury deposition
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Holmes, C.D., Amos, H.M., Wang, Q., Schauer, J.J., Fisher, J.A., Galarneau, E., Steffen, A., Edgerton, E.S., Sunderland, E.M., Zhang, Y., Talbot, R.W., Jacob, D.J., Rutter, A.P., Yantosca, R.M., Corbitt, E.S., Graydon, J.A., Gustin, M.S., St. Louis, V.L.
Atmospheric deposition represents a major input of mercury to surface environments. The phase of mercury (gas or particle) has important implications for its removal from the atmosphere. We use long-term observations of reactive gaseous mercury (RGM), particle-bound mercury (PBM), fine...
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Source-receptor relationships for speciated atmospheric mercury at the remote Experimental Lakes Area, northwestern Ontario, Canada
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Zhang, L., Blanchard, P., Cheng, I., Graydon, J.A., St. Louis, V.L.
Source-receptor relationships for speciated atmospheric mercury measured at the Experimental Lakes Area (ELA), Northwestern Ontario, Canada were investigated using various receptor-based approaches. The data used in this study include gaseous elemental mercury (GEM), mercury bound to fine...
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The role of terrestrial vegetation in atmospheric Hg deposition: Pools and fluxes of spike and ambient Hg from the METAALICUS experiment
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Graydon, J.A., Harris, R., St. Louis, V., Sandilands, K.A., Rudd, J.W.M., Kelly, C.A., Richardson, M., Emmerton, C.A., Lindberg, S.E., Tate, M.T., Asmath, H., Krabbenhoft, D.P.
As part of the Mercury Experiment to Assess Atmospheric Loading in Canada and the U.S. (METAALICUS), different stable Hg(II) isotope spikes were applied to the upland and wetland areas of a boreal catchment between 2001 and 2006 to examine retention of newly deposited Hg(II). In the present...