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Pollution status of the Yellow River tributaries in middle and lower reaches
Zhao, Meng M.1; Wang, Shao-mei1; Chen, Yi-ping2; Wu, Jun-hua2; Xue, Lin-gui1; Fan, Tao T.1
Corresponding AuthorChen, Yi-ping(chenyp@ieecas.cn)
2020-06-20
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume722Pages:11
AbstractTo determine thewater quality status of the primary tributaries inmiddle and lower reaches of the Yellow River Basin, water collected from the confluence of the ten tributaries and some physical, chemical and biological parameters were analyzed, and thenwater quality index and health riskwere evaluated. Of the ten main tributaries in the middle and lower reaches, only the Qingshui River had water of medium quality in the upper reaches, while all the other tributaries contributed water of poor quality. The Jindi and Dawen rivers in the lower reaches had the poorest water quality, especially the Jindi River. TP, TN, BOD5, COD, TOC and coliform bacteria exceeded the national criteria by 155%, 1%, 97.5%, 35.5%, 114.2%, and 80%, respectively. Cluster analysis indicated that industrial, agricultural, and domestic sewage, along with industrial waste gas, were the main sources of pollution in these tributaries. An analysis of the bacterial community structure showed that the Jindi River was the most polluted and had the largest species diversity and richness of bacteria. Also, its number of pathogenic microorganisms was much higher than that of other areas, and the bacterial functional genes of related metabolic pathways were significantly enriched. This was in sharp contrast with that of the Qingshui River, which had the best water quality. We suggest more specifics policy should be taken for different tributaries, and poor water quality of Jindi and Dawen River should be further studied to explore the most suitable pollution control methods. (C) 2020 Elsevier B.V. All rights reserved.
KeywordWater quality index High throughput sequencing Health risk assessment Functional bacterial gene annotation Environmental management
DOI10.1016/j.scitotenv.2020.137861
WOS KeywordWATER-QUALITY INDEXES ; CONTAMINATION
Indexed BySCI ; SCI
Language英语
Funding ProjecttheNational Key Research and Development Program of China[2017YFD0800500] ; Key Project of Graduate Teaching Reform of Lanzhou Jiaotong University
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationtheNational Key Research and Development Program of China ; Key Project of Graduate Teaching Reform of Lanzhou Jiaotong University
WOS SubjectEnvironmental Sciences
WOS IDWOS:000535472200013
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/14831
Collection生态环境研究室
Corresponding AuthorChen, Yi-ping
Affiliation1.Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Meng M.,Wang, Shao-mei,Chen, Yi-ping,et al. Pollution status of the Yellow River tributaries in middle and lower reaches[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,722:11.
APA Zhao, Meng M.,Wang, Shao-mei,Chen, Yi-ping,Wu, Jun-hua,Xue, Lin-gui,&Fan, Tao T..(2020).Pollution status of the Yellow River tributaries in middle and lower reaches.SCIENCE OF THE TOTAL ENVIRONMENT,722,11.
MLA Zhao, Meng M.,et al."Pollution status of the Yellow River tributaries in middle and lower reaches".SCIENCE OF THE TOTAL ENVIRONMENT 722(2020):11.
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