Contamination by organochlorine compounds in the edible tissue of four sturgeon species from the Caspian Sea (Iran).
Identifieur interne : 000A42 ( Main/Curation ); précédent : 000A41; suivant : 000A43Contamination by organochlorine compounds in the edible tissue of four sturgeon species from the Caspian Sea (Iran).
Auteurs : Seyed Vali Hosseini [Iran] ; Reza Dahmardeh Behrooz ; Abbas Esmaili-Sari ; Nader Bahramifar ; Seyed Mehdi Hosseini ; Reza Tahergorabi ; Seyed Fakhreddin Hosseini ; Xesús FeásSource :
- Chemosphere [ 0045-6535 ] ; 2008.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Hydrocarbons, Chlorinated, Water Pollutants, Chemical.
- chemical , metabolism : Water Pollutants, Chemical.
- geographic : Iran.
- metabolism : Fishes, Hydrocarbons, Chlorinated.
- Animals, Environmental Monitoring, Food Contamination, Oceans and Seas, Species Specificity.
Abstract
This study focused on accumulation of organochlorine compounds (OCs), including dichloro-diphenyl-trichloroethanes (DDTs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), and polychlorinated biphenyls (PCBs) accumulation in the muscle of four sturgeon (Persian sturgeon, Acipenser persicus; Stellate sturgeon, Acipenser stellatus; Ship sturgeon, Acipenser nudiventris and Beluga sturgeon, Huso huso) from the southern Caspian Sea. The DDT group was prominent in all of the sturgeon muscle tested constituting almost half or more of the total organochlorine content. Contaminant concentration generally followed this order: DDTs>PCBs>HCHs>HCB. The OCs concentrations in Beluga sturgeon (H. huso) were the highest and over four times higher than in the next highest species (A. nudiventris). From an ecotoxicological point of view, the concentrations of OCs in experimental fishes do not reflect a comparatively clean and pollution-free environment; however, results from this study shown that the inflow of organic pollutants into the Caspian Sea has been reduced when compared with prior studies. Levels of measured OCs in sturgeon were relatively low, but the level of some OCs in some of the specimens tested exceeded the guidelines for food; therefore, the maximum allowable daily consumption rate for sturgeon from this watershed may be limited by DDTs and PCBs content for high risk populations.
DOI: 10.1016/j.chemosphere.2008.06.036
PubMed: 18657287
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pubmed:18657287Le document en format XML
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<term>Hydrocarbons, Chlorinated (metabolism)</term>
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<front><div type="abstract" xml:lang="en">This study focused on accumulation of organochlorine compounds (OCs), including dichloro-diphenyl-trichloroethanes (DDTs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), and polychlorinated biphenyls (PCBs) accumulation in the muscle of four sturgeon (Persian sturgeon, Acipenser persicus; Stellate sturgeon, Acipenser stellatus; Ship sturgeon, Acipenser nudiventris and Beluga sturgeon, Huso huso) from the southern Caspian Sea. The DDT group was prominent in all of the sturgeon muscle tested constituting almost half or more of the total organochlorine content. Contaminant concentration generally followed this order: DDTs>PCBs>HCHs>HCB. The OCs concentrations in Beluga sturgeon (H. huso) were the highest and over four times higher than in the next highest species (A. nudiventris). From an ecotoxicological point of view, the concentrations of OCs in experimental fishes do not reflect a comparatively clean and pollution-free environment; however, results from this study shown that the inflow of organic pollutants into the Caspian Sea has been reduced when compared with prior studies. Levels of measured OCs in sturgeon were relatively low, but the level of some OCs in some of the specimens tested exceeded the guidelines for food; therefore, the maximum allowable daily consumption rate for sturgeon from this watershed may be limited by DDTs and PCBs content for high risk populations.</div>
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