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Distribution, magnitude and characterization of the toxicity of Ukrainian estuarine sediments
► Acute sediment toxicity was detected in several Ukrainian estuaries. ► Occurrence of sediment toxicity varied spatially and temporally during the study. ► Sediments and organism tissues were contaminated with anthropogenic pollutants. ► Hydrophobic organic contaminants contributed substantially to...
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Published in: | Marine pollution bulletin 2011-11, Vol.62 (11), p.2442-2462 |
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Main Authors: | , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | ► Acute sediment toxicity was detected in several Ukrainian estuaries. ► Occurrence of sediment toxicity varied spatially and temporally during the study. ► Sediments and organism tissues were contaminated with anthropogenic pollutants. ► Hydrophobic organic contaminants contributed substantially to observed toxicity.
During the Soviet era, Ukraine was an important industrial and agricultural region of the Soviet Union. This industrial and agricultural activity resulted in contamination of Ukraine’s estuaries with legacy anthropogenic pollutants. Investigations on the toxicological effects of this estuarine contamination have been limited. For this research, we measured the toxicity of contaminated sediments from four Ukrainian estuaries to several aquatic organisms over 3 years. Sediment chemical analyses and whole sediment toxicity identification evaluations (TIEs) were also performed to determine the classes of contaminants contributing to toxicity. Toxic sediments were observed in several of the Ukrainian estuaries and chemical analyses of the sediments demonstrated anthropogenic contaminants were widely distributed. Contaminants were also detected in macrobenthic organisms collected from the sediments. Several lines of evidence, including TIEs, indicated hydrophobic organic chemicals (HOCs) were contributing substantially to observed toxicity. This information can guide environmental managers to prioritize portions of the estuaries requiring remediation. |
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ISSN: | 0025-326X 1879-3363 |
DOI: | 10.1016/j.marpolbul.2011.08.023 |