| 北江干流沉积物重金属污染生态风险评价 |
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| 引用本文： | 李红玉,赵彦龙,梁永津,刘胜玉,李亚军.北江干流沉积物重金属污染生态风险评价[J].广东微量元素科学,2014,0(7):1-5. |
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| 作者姓名： | 李红玉 赵彦龙 梁永津 刘胜玉 李亚军 |
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| 作者单位： | 李红玉(珠江水资源保护科学研究所，珠江流域水环境监测中心，广东 广州 510611)；赵彦龙(珠江水资源保护科学研究所，珠江流域水环境监测中心，广东 广州 510611)；梁永津(珠江水资源保护科学研究所，珠江流域水环境监测中心，广东 广州 510611)；刘胜玉(珠江水资源保护科学研究所，珠江流域水环境监测中心，广东 广州 510611)；李亚军(珠江水资源保护科学研究所，珠江流域水环境监测中心，广东 广州 510611)； |
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| 摘 要： | 通过北江干流水体沉积物重金属含量,研究其典型污染物的潜在生态风险。采集了北江干流韶关至清远段7份沉积物样品,经混酸消解后,以电感耦合等离子体质谱仪测定沉积物中重金属含量,并对沉积物重金属分布特征进行了分析。同时利用Hakanson的潜在生态危害指数（RI）评价模式,对北江干流沉积物重金属生态风险进行了评价。评价结果表明,北江干流沉积物中重金属综合生态危害程度均表现为很高级别,其生态危害因子Pb、Cd已成为北江干流突发性水污染事故潜在预警因子。
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| 关 键 词： | 重金属 北江 沉积物 生态风险 |
Ecological Risk Assessment of Heavy Metal Pollution in the Sediment of Beijiang River |
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| LI Hongyu,ZHAO Yanlong,LIANG Yongjin,LIU Shengyu,LI Yajun.Ecological Risk Assessment of Heavy Metal Pollution in the Sediment of Beijiang River[J].Trace Elements Science,2014,0(7):1-5. |
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| Authors: | LI Hongyu ZHAO Yanlong LIANG Yongjin LIU Shengyu LI Yajun |
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| Institution: | ( Scientific institute of Pearl River Water Resources Protection, Monitoring Center of Pearl River ValleyAquatic Environment, Guangzhou 510611, China) |
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| Abstract: | Through analyzing the heavy metals concentrations of the sediments in the beijiang river to researches the potential ecological risk of heavymetals in sediment. Seven sediments were collected from shaoguan city to qingyuan city in the beijiang river. The heavy metals concentrations of the sediments were determinated by ICP-MS,following digestion of the sediments with various acids. The distribution characteristics of heavy metals in the sediments were analyzed. The potential ecological risk of heavy metals in the sediments of beijiang river was calculated by using hankanson ecological risk index methods. The results showed that the sediments of beijiang river were polluted by heavy metals in rather high degree and caused considerable potential ecological risk. Morever,Pb and Cd had became the potential predictors of sudden water pollution accidents of beijiang river. |
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| Keywords: | heavy metals beijiang river sediment ecological risk |
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