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Environmental impact factors and mercury speciation in the sediment along Fujian and eastern Guangdong coasts

ISSN号：0253-505X
期刊名称：《海洋学报：英文版》
时间：0
分类：X322[环境科学与工程—环境工程] P444[天文地球—大气科学及气象学]
作者机构：[1]State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China, [2]Third Institute of Oceanography State Oceanic Administration, Xiamen 361005, China
相关基金：Speciation Analysis of Hg in the Sediment of Taiwan Strait under contract No. 2009023; the National 908 Surveys of Marine Chemistry in Coastal Waters （908-ZC-I-03）; the Fujian Provincial Surveys of Marine Chemistry in Coastal Waters and Harbors under contract No. FJ908-04-07.

作者： ZHANGYuanbiao[1,2], HUO Yunlong[2], LIU Xiyao[1], KUANG Weiming[2], YUAN Dongxing[1], JI Weidong[2]

关键词：环境影响因素, 东部沿海, 沉积物, 广东省, 福建省, 汞形态, 汞浓度, 底层海水, mercury, methyl mercury, coastal area, sediment, speciation

中文摘要：

全部的水银(THg ) 和甲基水银(MeHg ) 的集中为沿着福建省和东方广东省的沿海的线收集的 32 表面沉积被决定。THg 和 MeHg 和他们的环境影响因素的空间分布被调查。在沉积的 THg 和 MeHg 的平均集中分别地是 31.5 ng/g 和 0.096 ng/g。沉积 THg 和 MeHg 集中在 Minjiang 河口和 Quanzhou 和 Putian 的沿海的区域显示出相对高的价值。当到海岸线的距离增加了，集中总的来说减少了。在环境影响因素和 THg 之中的关联， MeHg 被分析。沉积 THg 集中高度被相关到有机物，铜，全部的氮(TN ) 和全部的磷(TP ) 的集中，并且显著地相关到底部海水的 pH 价值和沉积硫化物的集中。沉积 MeHg 集中高度被相关到有机物和铜的集中，并且重要相关到硫化物， TN， TP 和底部海水的 pH 价值的集中。

英文摘要：

Concentrations of total mercury （THg） and methyl mercury （MeHg） were determined for 32 surface sed- iments collected along the coastal line of Fujian Province and eastern Guangdong Province. The spatial distributions of THg and MeHg and their environmental impact factors were investigated. The average con- centrations of THg and MeHg in the sediments were 31.5 ng/g and 0.096 ng/g, respectively. Both sediment THg and MeHg concentrations showed relatively high value in the Minjiang Estuary and the coastal areas of Quanzhou and Putian. The concentrations overall decreased as the distance to the shoreline increased. The correlations among environmental impact factors and THg, MeHg were analyzed. The sediment THg concentration was highly correlated to the concentrations of organic matter, copper, total nitrogen （TN） and total phosphorus （TP）, and significantly correlated to pH value of the bottom seawater and concentration of sediment sulfide. The sediment MeHg concentration was highly correlated to the concentrations of organic matter and copper, and significant correlated to the concentrations of sulfide, TN, TP and pH value of the bottom seawater.

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