Zinc speciation in a contaminated aquatic environment: characterization of environmental particles by analytical electron microscopy
Article Abstract:
Researchers from the U.S. and Canada used analytical electron microscopy to study the characteristics of aquatic particles contaminated by zinc smelting operations in Lake DePue, northern Illinois.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2000
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Sources and fluxes of mercury in the St. Lawrence River
Article Abstract:
The St. Lawrence waterway and its tributaries were sampled to determine the levels of dissolved and particulate mercury. Compounding the difficulty in performing such sampling is the diverse topography and usage of the land. Also impacting the sampling was that large regions were frozen for months at a time. High-frequency samplings were taken over 18 months between 1995 and 1996. Effluent from Montreal was also sampled. The resulting information showed that dissolved mercury was mainly found in north shore tributaries. Particulate mercury was mainly from erosion of river bands and beds. The data suggests that at least 88 percent of deposited mercury was retained in the watersheds. The authors of this report postulate that this study might be an experimental model that could be used for other large riverine systems of sub-boreal and cold-temperature regions.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1999
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Sedimentation Field-Flow Fractionation Coupled Online to Inductively Coupled Plasma Mass spectrometry - New possibilities for Studies of Trace Metal Adsorption onto Natural Colloids
Article Abstract:
Researchers in Sweden and Australia showed the efficacy of using field-flow fractionation for detecting major elements (aluminum, silicon, iron, and manganese) and trace elements (cesium, cadmium, copper, lead, and zinc) within a a clay-water suspension.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1999
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