| 深圳湾沉积物中重金属污染累积过程 |
| 摘要点击 3520 全文点击 3434 投稿时间：2002-08-09 修订日期：2002-10-30 |
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| 中文关键词 沉积物 柱样 重金属 污染累积 深圳湾 |
| 英文关键词 sediment core heavy metals accumulation Shenzhen Bay |
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| 中文摘要 |
| 通过测定深圳湾沉积物柱样中重金属的含量,分析重金属浓度的剖面分布情况,并结合210Pb的测年资料,高分辨率地研究重金属的污染历史,并分析其污染的累积过程结果表明:深圳湾沉积物中重金属的浓度相对较低,但Pb、Cu、Zn等已明显受到人类污染源的影响;近20年深圳经济的快速发展,以及20世纪60～70年代香港经济的崛起时期,对深圳湾沉积物重金属污染累积有显著的贡献. |
| 英文摘要 |
| Heavy metals concentrations in marine sediment cores of Shenzhen Bay were measured, and the profile distribution characteristic of heavy metals was discussed. Combined with the 210Pb dating results, the contamination history of heavy metals was studied in high resolution records, and the metal accumulation processes were also analyzed. The results indicated that the concentrations of heavy metals was relatively low compared with other area in the world, but the elements of Pb, Cu and Zn were obviously contaminated by anthropogenic impact. The rapid economical development of Shenzhen in the last 20 years and Hong Kong in 1960～1970s contributed much on accumulation of heavy metals in the sediments. |
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