Heavy Metals, Nitrogen, and Phosphorus in Sediments from the First Drinking Water Reservoir Supplied by Yangtze River in Shanghai, China: Spatial Distribution Characteristics and Pollution Risk Assessment
Heavy Metals, Nitrogen, and Phosphorus in Sediments from the First Drinking Water Reservoir Supplied by Yangtze River in Shanghai, China: Spatial Distribution Characteristics and Pollution Risk Assessment
复制标题
上海长江第一饮用水水库沉积物中重金属、氮、磷的空间分布特征及污染风险评估
DOI：
10.1007/s11270-020-04651-6
复制
发表时间：
2020-06
期刊：
影响因子：
--
通讯作者：
Song Xinshan
中科院分区：
文献类型：
--
作者：
Peng Cheng;Shen Yihao;Wu Xuefei;Yuan Peng;Jiang Lei;Chen Si;Ze Siwen;Wang Xianyun;Song Xinshan
内源污染是饮用水水库中最值得注意的问题之一，因为沉积物是水环境中污染物的主要汇。本文研究了上海市首座长江供水饮用水水库--陈航水库沉积物中重金属和不同形态氮、磷的空间分布特征，并对水库底泥的污染风险进行了评价。结果表明，铜、铅、锌、锰、铁等重金属主要集中在下游，而镍、铬主要集中在中西部沉积物中。沉积物中的全N主要分布在水库东部，而氨氮和大部分总磷则积累在中部和东部地区。地质累积指数(Igeo)和潜在生态风险指数(PERI)表明，沉积物受到轻、中度重金属复合污染，对生态系统构成潜在风险。此外，沉积物质量指南(SQGs)表明，所有地点的镍和东部水库的锌都会对底栖生物造成很大的负面生物反应。沉积物中N污染较轻，而P污染不明显，尤其是下游。多元统计分析表明，铜、锌、铅和氮主要来自工业废水、生活污水和长江地表径流，而铬、镍和磷主要来自自然侵蚀和非点源。
Endogenous pollution is one of the most notable issues in drinking water reservoirs, since the sediment is a main sink of contaminants in the aquatic environment. In this work, we investigated the spatial distribution characteristics of heavy metals and different species of N and P and assessed the pollution risks of the sediments from the Chenhang Reservoir, which is the first drinking water reservoir supplied by Yangtze River in Shanghai, China. The results show that heavy metals, including Cu, Pb, Zn, Mn, and Fe, were mainly accumulated in the downstream, while most Ni and Cr were concentrated in the sediments from the central and western zones. Total N in the sediments was primarily distributed in the eastern reservoir, while ammonia N and most of total P were accumulated in the central and eastern areas. The geo-accumulation index (Igeo) and potential ecological risk index (PERI) suggest that the sediments were polluted by combined heavy metals at minor to medium levels, posing a potential risk to ecosystem. Moreover, sediment quality guidelines (SQGs) indicate that Ni in all sites and Zn in the eastern reservoir would cause great negative biological response to benthic organisms. Additionally, the sediments were slightly polluted by N but not P, especially in the downstream. Multivariate statistical analyses revealed that Cu, Zn, Pb, and N mainly derived from industrial wastewater, domestic sewage and surface runoff from the Yangtze River, while Cr, Ni, and P mainly originated from natural erosion and nonpoint sources.Graphical Abstract.
登录
查看更多内容
影响因子：
4.3
作者：
L. Morales-Marín;Howard Wheater;K. Lindenschmidt
通讯作者：
L. Morales-Marín;Howard Wheater;K. Lindenschmidt
影响因子：
3.3
作者：
Jin Kwan Kim;Y. Onda;D. Yang;M. Kim
通讯作者：
Jin Kwan Kim;Y. Onda;D. Yang;M. Kim
影响因子：
2.7
作者：
MacDonald, DD;Carr, RS;Ingersoll, CG
通讯作者：
Ingersoll, CG
DOI：
10.1016/j.scitotenv.2008.08.002
发表时间：
2008-08
期刊：
The Science of the total environment
影响因子：
--
作者：
P. Withers;H. Jarvie
通讯作者：
P. Withers;H. Jarvie
影响因子：
6.4
作者：
Yanlai Zhou;Shenglian Guo;Pan Liu;Chong-yu Xu
通讯作者：
Yanlai Zhou;Shenglian Guo;Pan Liu;Chong-yu Xu