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CONGENER-SPECIFIC CHARACTERIZATION AND SOURCES OF POLYCHLORINATED DIBENZO-P-DIOXINS, DIBENZOFURANS AND DIOXIN-LIKE POLYCHLORINATED BIPHENYLS IN MARINE SEDIMENTS FROM INDUSTRIALIZED BAYS OF KOREA.
- Source :
- Environmental Toxicology & Chemistry; Feb2008, Vol. 27 Issue 2, p323-333, 11p, 1 Diagram, 1 Chart, 4 Graphs, 1 Map
- Publication Year :
- 2008
-
Abstract
- Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (DLPCBs) were determined in 122 coastal sediments from heavily industrialized areas in Korea. Toxic equivalent (TEQ) concentrations of PCDD and PCDF (PCDD/F) and DLPCB ranged from 0.44 to 38.5 pg/g dry weight and from 0.01 to 38.4 pg/ g dry weight, respectively. Overall PCDD/F and DLPCB concentrations were elevated in estuarine and inner bay locations close to industrial complexes, indicating that these contaminants derived from local discharges. Concentrations of PCDD/F measured in the present study were comparable to those in industrialized areas of other countries. Nonparametric multidimensional scaling ordination and congener-specific characterization showed that combustion processes occurring in industrial complexes, including the steel industry, are the major source of PCDD/Fs in Korean coastal waters. There were no significant correlations among PCDD/Fs, DLPCBs, and total organic carbon; however, there was moderate correlation between PCDD/Fs and DLPCBs in some coastal bays, suggesting that these chemicals have similar sources and movements in these locations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 07307268
- Volume :
- 27
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Environmental Toxicology & Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 28521618
- Full Text :
- https://doi.org/10.1897/07-337R.1