Influence of ortho-substitution on patterns of PCB accumulation in sediment, plankton, and fish in a freshwater estuary
Article Abstract:
Ortho-substitution has no substantial effect in the accumulation of polychlorobiphenyls (PCBs) in sediment, plankton and fish of Green Bay, WI. Results from the 47 PCB congeners that contain 0-3-orthochlorines examined reveal that maximum preferential accumulation can be achieved for penta-, hexa-, and heptachloro congeners. Chlorine content, which afects partitioning to organic phases and surface adsorption, is found to be largely responsible for the accumulation of PCBs in plankton and fish from their sediment source.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Direct electrochemical immunosensor for polychlorinated biphenyls
Article Abstract:
Direct electrochemical immunosensor exhibits high selectivity for polychlorinated biphenyls (PCB) and that the method may be used for continuos monitoring of effluents, such as groundwater and waste streams. The immunosensor has a linear dynamic range between 0.3 and 100 ng/ml with a relation coefficient of 0.997 for Aroclor 1242. Evaluations showed high PCB selectivity even in the presence of potential ionic substance interference and that cross reactivity for chlorinated phenolic compounds stand at less than 3%.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Input characterization of sedimentary organic contaminants and molecular markers in the northwestern Mediterrean Sea by exploratory data analysis
Article Abstract:
Principal component analysis (PCA) and hierarchial cluster analysis (HCA) proved useful in characterizing sedimentary organic contaminants and lipidic compounds in the northwestern Mediterranean Sea. The apportionment of the environmental source of the main components of the compounds in the northwestern Mediterranean Sea was achieved through the use of the alternating least squares (ALS) positive matrix factorization method.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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