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学科主题: Environmental Sciences
题名: Distribution of heavy metals in sediments of the Pearl River Estuary, Southern China: Implications for sources and historical changes
作者: Ye, F ; Huang, XP ; Zhang, DW ; Tian, L ; Zeng, YY
通讯作者: yefeng@scsio.ac.cn ; xphuang@scsio.ac.cn
关键词: metal pollution ; sediment ; spatial distribution ; historical change ; the Pearl River Estuary
刊名: JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
发表日期: 2012
卷: 24, 期:4, 页:579-588
部门归属: [Ye, Feng; Huang, Xiaoping; Zhang, Dawen; Tian, Lei; Zeng, Yanyi] Chinese Acad Sci, State Key Lab Trop Oceanol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Ye, Feng; Tian, Lei; Zeng, Yanyi] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
项目归属: LTO
摘要: The distribution of heavy metals (Pb, Zn, Cd and As) in sediments of the Pearl River Estuary was investigated. The spatial distribution of heavy metals displayed a decreasing pattern from the turbidity maxima to both upstream and downstream of the estuary, which suggested that suspended sediments played an important role in the trace metal distribution in the Pearl River Estuary. In addition, metal concentrations were higher in the west part of the estuary which received most of the pollutants from the Pearl River. In the sediment cores, fluxes of heavy metals were consistent with a predominant anthropogenic input in the period 1970-1990. From the mid-1990s to the 2000s, there was a significant decline in heavy metal pollution. The observed decline has shown the result of pollution control in the Pearl River Delta. However, it is noteworthy that the metal concentrations in the most recent sediment still remained considerably high. Taken together, the enrichment of heavy metals in sediments was largely controlled by anthropogenic pollution.
语种: 英语
WOS记录号: WOS:000303297400002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10257
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Recommended Citation:
Ye, F; Huang, XP; Zhang, DW; Tian, L; Zeng, YY.Distribution of heavy metals in sediments of the Pearl River Estuary, Southern China: Implications for sources and historical changes,JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2012,24(4):579-588
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