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Heavy metal enrichment of man-made origin of superficial sediment on the continental shelf of the north-western Black Sea
Secrieru, D.; Secrieru, A. (2002). Heavy metal enrichment of man-made origin of superficial sediment on the continental shelf of the north-western Black Sea. Est., Coast. and Shelf Sci. 54(3): 513-526
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714, more
Peer reviewed article  

Also published as
  • Secrieru, D.; Secrieru, A. (2002). Heavy metal enrichment of man-made origin of superficial sediment on the continental shelf of the north-western Black Sea, in: European River Ocean Systems (EROS-21): interactions between the Danube and the north-western Black Sea. Estuarine, Coastal and Shelf Science, 54(3): pp. 513-526, more

Available in Authors 

Keywords
    Continental shelves; Heavy metals; Sediments; Black Sea Plate [Marine Regions]

Authors  Top 
  • Secrieru, D.
  • Secrieru, A.

Abstract
    Statistical techniques were used to chemically identify ` abnormal ' sediments, either contaminated by or naturally enriched in heavy metals. Iron was used for normalization. After assessing the possible contribution of natural enrichment processes, relative enrichments of man-made origin ranging from 50% to more than 200% were estimated for Co, Ba, Cu, Pb, Zn and Cd, usually, contamination drastically decreases with depth in the sedimentary column. The shelf areas most affected by heavy metal pollution are the Danube delta front, Danube prodelta and the central zone of the sediment-starved continental shelf. Romanian and Ukrainian oil-drilling activities heavily affect Ba concentrations in sediments and also contribute to the pollution of the continental shelf by other heavy metals.

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