Mercury contamination and accumulation in sediments of the East China Sea

作     者：Tien-Hsi Fang 

作者机构：Department of Marine Environmental Informatics "National" Taiwan Ocean University 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2010年第22卷第8期

页      面：1164-1170页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：supported by the "National" Science Council of Taiwan  China under grants NSC 93-2611-M-019-015  94-2611-M-019-019 and 95-2611-M-019-004 

主　　题：Hg contamination enrichment factor accumulation the East China Sea 

摘      要：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.