| 独流减河水体及沉积物质量评价 |
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| 作者姓名： | 唐永杰 夏婧业 陈雅娟 代政 蔡树伯 刘春光 |
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| 作者单位： | 1. 天津市大清河管理处, 天津 300270;
2. 南开大学 环境污染过程与基准教育部重点实验室, 天津市城市生态环境修复与污染防治重点实验室, 天津 300350 |
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| 基金项目： | 天津市水务局科技项目（KY2014-08）和中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 基于2016年对独流减河及其主要支流的水质和沉积物调查数据，采用单因子评价法、综合指数评价法和修正的卡尔森营养指数法对独流减河及其主要支流水体和表层沉积物环境质量状况进行评价。结果显示：独流减河水质较差，属于劣V类（GB 3838-2002），其中西大洼排干、陈台子排水河和十米河等支流水体污染最严重，主要污染因子为总氮（TN）、化学需氧量（COD）、氨氮（NH3-N）等；水体处于富营养化状态，其中67%的采样点水体呈重度富营养化；沉积物单因子评价结果显示，各采样点的表层沉积物均达到重污染水平，其中的主要污染物为氮、磷、铬、铜和镍。
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| 关 键 词： | 独流减河 水质评价 沉积物质量 营养状态 富营养化 |
| 收稿时间： | 2018-05-02 |
| 修稿时间： | 2018-06-22 |
Quality assessment of water and sediment in Duliujianhe River |
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| Authors: | TANG Yongjie XIA Jingye CHEN Yajuan DAI Zheng CAI Shubo LIU Chunguang |
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| Institution: | 1. Tianjin Administration of Daqinghe River, Tianjin 300270, China;
2. Key Laboratory of Pollution Processes and Environmental Criteria(Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, China |
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| Abstract: | Based on the investigation data of water quality and sediment quality of Duliujianhe River and its major tributaries in 2016, single-factor assessment method, composite-index assessment method, and modified Carlson trophic state index method were used to assess the environmental quality of water and surface sediment of Duliujianhe River and its major tributaries. The results show that the water quality of Duliujianhe River was bad and was worse than Grade V (GB 3838-2002). The heavily-polluted tributaries included Xidawa Drainage River, Chentaizi Drainage River, and Shimihe River. The main pollutants were total nitrogen (TN), ammonia nitrogen (NH3-N), and chemical oxygen demand (COD). Eutrophication occurred in the whole river and 67% of the sampling sites were heavily eutrophic. Based on the results of the single-factor assessment method, the surface sediments were heavily contaminated and the major pollutants were nitrogen, phosphorus, chromium, copper, and nickel. |
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| Keywords: | Duliujianhe River water quality assessment sediment quality trophic status eutrophication |
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