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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40009

Title: Mercury contamination and accumulation in sediments of the East China Sea
Authors: Tien-Hsi Fang
Ru-Yun Chen
Contributors: 國立臺灣海洋大學:海洋環境資訊學系
Keywords: the East China Sea
enrichment factor
Date: 2010-08
Issue Date: 2017-01-12T02:20:50Z
Publisher: Journal of Environmental Sciences
Abstract: Abstract: Mercury (Hg) concentrations in sediment samples collected from the inner and middle shelves of the East China Sea (ECS) were analyzed to evaluate Hg contamination levels and to calculate Hg sedimentation rates and total accumulation in the ECS. The range of Hg concentrations in surface sediments of the inner shelf was 26.5-47.6 ng/g, and that for the middle shelf was 4.1-13.9 ng/g. Hg concentrations correlated well with organic carbon contents but varied inversely with sediment grain size. Enrichment factors indicated that the whole inner shelf and a small portion of the middle shelf were slightly contaminated by Hg. Hg accumulation rates in the ECS ranged between 0.42-48.7 ng/(cm2·yr), with higher values observed in the inner shelf. Total Hg accumulation in the calculated area (accounting for 80% of the ECS continental shelf area) ranged from 25 to 30 tons/yr; approximately 51% and 17% of the accumulated Hg mass was deposited in the Yangtze estuarine zone and the inner shelf, respectively.
Relation: 22(8)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40009
Appears in Collections:[海洋環境資訊系] 期刊論文

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