| 刁江流域偏枯态水质安全风险分析 |
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| 引用本文： | 李东霖,梁才贵,顾 森,吕 俊,虞定平,姚博文.刁江流域偏枯态水质安全风险分析[J].水文,2021,41(2):86-93,62. |
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| 作者姓名： | 李东霖 梁才贵 顾 森 吕 俊 虞定平 姚博文 |
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| 作者单位： | 广西壮族自治区水文中心;河池水文中心;上海交通大学 |
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| 基金项目： | 江苏省自然科学基金青年基金项目(BK20190828);河池市科技计划项目(河科D18107-3-5)。 |
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| 摘 要： | 为实现刁江流域水质水量同步监测,收集了2018年非汛期至2019年汛期共14个地市的降水量、3个水文测站的逐时水位和流量、9个水质监测断面的实验检测成果等数据,借鉴美国环保署健康风险评价方法,对砷、镉、铅、铁、锰、铜、锌、汞共8种采、选、冶矿作业特征污染物的化学致癌风险指数和毒害风险指数等有关风险指标进行评价分析。结果表明,刁江流域偏枯态水质安全的最大风险隐患为上游的砷,其最高极值浓度超标了0.624倍。因此,必须进一步加强对刁江上游沿岸矿产加工业的监管,以降低刁江偏枯态水安全风险。
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| 关 键 词： | 偏枯态 水安全 风险评价 暴露 刁江 |
Analysis on Security Risk of Water Quality under Relatively Low-flow Condition in Diaojiang River Basin |
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| LI Donglin,LIANG Caigui,GU Sen,LV Jun,YU Dingping,YAO Bowen.Analysis on Security Risk of Water Quality under Relatively Low-flow Condition in Diaojiang River Basin[J].Hydrology,2021,41(2):86-93,62. |
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| Authors: | LI Donglin LIANG Caigui GU Sen LV Jun YU Dingping YAO Bowen |
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| Institution: | (Hydrology Center of Guangxi Zhuang Autonomous Region,Nanning 530023,China;Hechi Hydrology Center,Hechi 547000,China;Shanghai Jiao Tong University,Shanghai 200240,China) |
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| Abstract: | In order to realize the synchronous monitoring of water quality and quantity in the Diaojiang River basin,this paper collected the sum of the precipitation of 14 corresponding cities,the hourly water level and flow of 3 hydrological monitoring stations,and the laboratory analyzing data of 9 water quality monitoring sites from the non-flood season in 2018 to the flood season in 2019.Based on the health risk evaluation methods of the U.S.EPA,the related chemical carcinogenic risk and the harmfulness risk indexes of the characteristic pollutants including arsenic,cadmium,lead,iron,manganese,copper,zinc and mercury in the mineral processing operations were evaluated and analyzed.The results demonstrated that the arsenic in the upstream of the Diaojiang River basin had the greatest potential risk for the security of the water quality and its maximum peak concentration exceeded the water standard of Class III as 0.624 times.Therefore,it is greatly imperative to further strengthen the supervision of the mineral processing industry along the upstream of the Diaojiang River basin to reduce the risk of the water security under the relatively low-flow condition. |
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| Keywords: | relatively low-flow condition water security risk assessment exposure Diaojiang River |
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