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Impacts of inland pollution input on coastal water quality of the Bohai Sea

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Impacts of inland pollution input on coastal water quality of the Bohai Sea
Zhou, Di1; Yu, Miao1; Yu, Junbao1; Li, Yunzhao1; Wang, Xuehong1; Wang, Zhikang1; Lv, Zhenbo1; Yang, Jisong1; Guan, Bo2; Qu, Fanzhu3
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2021-04-15
卷号765页码:142691
关键词Inland pollution inputCoastal water qualityInorganic nitrogenHeavy metalsBohai Sea
DOI10.1016/j.scitotenv.2020.142691
英文摘要Inland pollutants input is a key impact factor for the coastal water quality of the Bohai Sea. The coastal and inland water pollutant inputs were analyzed by using monitoring data of recent years from the State Oceanic Administration. The results showed that more than 56% of the Bohai Sea area was unclean seawater in 2012, although the water quality improved gradually after that time. In 2017, about one-third of the Bohai Sea area still had unclean seawater. Inorganic nitrogen, reactive phosphate, and petroleum hydrocarbons are the main pollutants in the seawater. A total of approximately 840,000 t of pollutants was transported to the sea each year by major rivers during 2010-2017. Significant correlations (p < 0.05) were found between the third-grade level seawater area and the pollutants of CODcr, petroleum, NO3--N, NH4+-N, NO2--N, Cu, and Pb and between the inferior fourth-grade level seawater area and the pollutants of petroleum, NO2--N, Pb, and NO3--N. The standard discharge rate of terrestrial-source sewage outlets was no more than 50%. The low standard discharge rate of the major terrestrial-source sewage pollutants of CODcr, NH4+-N, TP, BOD5, and SS caused more than 80% of the monitored sea areas adjacent to the selected key sewage outlets to not meet the water quality requirements of the marine functional area. The results suggest that implementing a coastal water management plan is necessary to reduce the heavy ecological burdens on the coastal zone of the Bohai Sea. (C) 2020 Elsevier B.V. All rights reserved.
资助机构National Key Research and Development Program of China [2017YFC0505902]; Project of the Cultivation Plan of Superior Discipline Talent Teams of Universities in Shandong Province: the Coastal Resources and Environment team for Blue -Yellow Area; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [U1806218, U1706220]
收录类别SCI
语种英语
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000616232300077
引用统计被引频次:7[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30519
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室

作者单位1.Ludong Univ, Univ Shandong, Key Lab Ecol Restorat & Conservat Coastal Wetland, Inst Adv Study Coastal Ecol, Yantai 264003, Peoples R China;
2.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remedit, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China;
3.Binzhou Univ, Shandong Prov Key Lab Ecoenvironm Sci Yellow Rive, Binzhou 256601, Peoples R China

推荐引用方式
GB/T 7714Zhou, Di,Yu, Miao,Yu, Junbao,et al. Impacts of inland pollution input on coastal water quality of the Bohai Sea[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,765:142691.
APAZhou, Di.,Yu, Miao.,Yu, Junbao.,Li, Yunzhao.,Wang, Xuehong.,...&Qu, Fanzhu.(2021).Impacts of inland pollution input on coastal water quality of the Bohai Sea.SCIENCE OF THE TOTAL ENVIRONMENT,765,142691.
MLAZhou, Di,et al."Impacts of inland pollution input on coastal water quality of the Bohai Sea".SCIENCE OF THE TOTAL ENVIRONMENT 765(2021):142691.


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