Importance of the forest canopy to fluxes of methyl mercury and total mercury to boreal ecosystems
Article Abstract:
Litterfall and thoroughfall samples under the canopy of forest in the Experimental Lakes Area (ELA) in northwestern Ontario are studied for levels of total mercury (THg) and methyl mercury (MeHg) to determine the method of Hg deposition on the forest floor. Graphs show the thoroughfall and litterfall levels of Hg for various sites in the ELA, and are compared to other sites in the United States and Scandanavia.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
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Measurement of cadmium (II) and calcium (II) complexation by fulvic acids using (super 113)Cd NMR
Article Abstract:
This study of the complexation of the metal ions Cd(II) and Ca(II) with several fulvic acids using (super 113) Cd nuclear magnetic resonance (NMR) spectroscopy shows that Cd(II) predominately binds to the oxygen containing functional groups of the fulvic acids. This approach can determine the average binding constants of Cd(II) and Ca(II).
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
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Production and loss of methylmercury and loss of total mercury from boreal forest catchments containing different types of wetlands
Article Abstract:
The magnitude of four terrestrial boreal forest catchments as sources or sinks for methylmercury (MeHg) andd total mercury (THg) was studied at the Experimental Lakes Area in northwestern Ontario. Results showed that all catchments were sinks for THg but there was wide variation in the strength of the catchments as sinks for MeHg. This variation was apparently due to the differences in hydrology within the wetlands. The wetlands were greater sources of MeHg during years of high water yield than during low water yield years.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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