Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods
The study evaluates the surface water quality of the Bach Dang river basin. During the rainy season, the temperature, pH, EC, BOD _5 , COD, coliforms, ammonium and phosphate values were 27 °C–37 °C, 6.6–8.9, 300–2200 μ S cm ^−1 , 5–25 mg l ^−1 , 5–26 mg l ^−1 , 0–3000 MPN/100 mL, below 0.01 mg l ^−1...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Environmental Research Communications |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2515-7620/ace87e |
| _version_ | 1797772082463899648 |
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| author | Manh Ha Nguyen Tuan Anh Tran Huu Tap Van Thi Huyen Ngoc Hoang Pham Chi Mai Phan Cong Long Nguyen Duc Toan Nguyen Thi Huong Pham |
| author_facet | Manh Ha Nguyen Tuan Anh Tran Huu Tap Van Thi Huyen Ngoc Hoang Pham Chi Mai Phan Cong Long Nguyen Duc Toan Nguyen Thi Huong Pham |
| author_sort | Manh Ha Nguyen |
| collection | DOAJ |
| description | The study evaluates the surface water quality of the Bach Dang river basin. During the rainy season, the temperature, pH, EC, BOD _5 , COD, coliforms, ammonium and phosphate values were 27 °C–37 °C, 6.6–8.9, 300–2200 μ S cm ^−1 , 5–25 mg l ^−1 , 5–26 mg l ^−1 , 0–3000 MPN/100 mL, below 0.01 mg l ^−1 , and 0.02 mg l ^−1 , respective. During the rainy and dry seasons, Zn, Pb, Cr, As, Fe and Mn levels were below drinking water limits. In the rainy season, the water quality index varied from 76 to 91, signifying medium to excellent water quality. The most outstanding water quality sites were the QN12, QN18, and QN22. During the dry season, most areas had moderate to excellent (WQI values between 61 and 93), except for QN01, QN03, QN04, QN05, QN06, QN07, QN11, QN16, QN17, QN19, and QN23, where it dropped to moderate (61–73). The temperatures were greater and higher EC values in the southeast. The DO concentrations were higher in the northwest and southeast in both seasons. The southern and southeastern regions exhibited more excellent COD and BOD _5 values than the western, southwest, north, and northeast regions. The ammonium concentrations were higher in the southeast. During the dry season, the phosphate levels exceeded the permissible limit in the west, southeast, east, and northeast. Coliforms were below acceptable in both seasons, with greater levels in the northwest and northeast during the dry season. In addition, the Zn and Pb are favorably associated with the As, Mn, ammonium and phosphate in the rainy season. The COD positively correlated with the coliforms and BOD _5 . In the dry season, the pH inversely correlated with the Pb and Fe positively. The ammonium correlated negatively with the DO and positively with the phosphates. The pH negatively connected with the alkalinity, while the As positively correlated with the BOD _5 and COD. |
| first_indexed | 2024-03-12T21:45:56Z |
| format | Article |
| id | doaj.art-15139cf053ec492eace6a04cc123384e |
| institution | Directory Open Access Journal |
| issn | 2515-7620 |
| language | English |
| last_indexed | 2024-03-12T21:45:56Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Communications |
| spelling | doaj.art-15139cf053ec492eace6a04cc123384e2023-07-26T11:06:59ZengIOP PublishingEnvironmental Research Communications2515-76202023-01-015707501510.1088/2515-7620/ace87eSurface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methodsManh Ha Nguyen0Tuan Anh Tran1Huu Tap Van2https://orcid.org/0000-0002-9584-8383Thi Huyen Ngoc Hoang3Pham Chi Mai Phan4Cong Long Nguyen5Duc Toan Nguyen6Thi Huong Pham7Institute of Geography, Vietnam Academy of Science and Technology (VAST), No. 18, Hoang Quoc Viet Road, Cau Giay District, Ha Noi City, Vietnam; Graduate University of Science and Technology , Vietnam Academy of Science and Technology (VAST), No. 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi City, VietnamInstitute of Geological Sciences, Vietnam Academy of Science and Technology (VAST), Chua Lang street, Lang Thuong Ward, Dong Da District, Ha Noi City, VietnamCenter for Advanced Technology Development, Thai Nguyen University (TNU) , Tan Thinh ward, Thai Nguyen City, Vietnam; Faculty of Natural Resources and Environment, TNU—University of Sciences (TNU) , Tan Thinh ward, Thai Nguyen City, VietnamInstitute of Geography, Vietnam Academy of Science and Technology (VAST), No. 18, Hoang Quoc Viet Road, Cau Giay District, Ha Noi City, Vietnam; Graduate University of Science and Technology , Vietnam Academy of Science and Technology (VAST), No. 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi City, VietnamDepartment of Chinese Studies, TNU—University of Sciences (TNUS) , Tan Thinh ward, Thai Nguyen City, VietnamInstitute of Geography, Vietnam Academy of Science and Technology (VAST), No. 18, Hoang Quoc Viet Road, Cau Giay District, Ha Noi City, VietnamInstitute of Geography, Vietnam Academy of Science and Technology (VAST), No. 18, Hoang Quoc Viet Road, Cau Giay District, Ha Noi City, VietnamInformation Technology Center for Natural Resources and Environment, Department of Natural Resources and Environment of Quang Ninh Province, No. 3, Hong Ha Ward, Ha Long City, Quang Ninh Province, Vietnam; Faculty of Natural Resources and Environment, TNU—University of Sciences (TNUS) , Tan Thinh ward, Thai Nguyen City, VietnamThe study evaluates the surface water quality of the Bach Dang river basin. During the rainy season, the temperature, pH, EC, BOD _5 , COD, coliforms, ammonium and phosphate values were 27 °C–37 °C, 6.6–8.9, 300–2200 μ S cm ^−1 , 5–25 mg l ^−1 , 5–26 mg l ^−1 , 0–3000 MPN/100 mL, below 0.01 mg l ^−1 , and 0.02 mg l ^−1 , respective. During the rainy and dry seasons, Zn, Pb, Cr, As, Fe and Mn levels were below drinking water limits. In the rainy season, the water quality index varied from 76 to 91, signifying medium to excellent water quality. The most outstanding water quality sites were the QN12, QN18, and QN22. During the dry season, most areas had moderate to excellent (WQI values between 61 and 93), except for QN01, QN03, QN04, QN05, QN06, QN07, QN11, QN16, QN17, QN19, and QN23, where it dropped to moderate (61–73). The temperatures were greater and higher EC values in the southeast. The DO concentrations were higher in the northwest and southeast in both seasons. The southern and southeastern regions exhibited more excellent COD and BOD _5 values than the western, southwest, north, and northeast regions. The ammonium concentrations were higher in the southeast. During the dry season, the phosphate levels exceeded the permissible limit in the west, southeast, east, and northeast. Coliforms were below acceptable in both seasons, with greater levels in the northwest and northeast during the dry season. In addition, the Zn and Pb are favorably associated with the As, Mn, ammonium and phosphate in the rainy season. The COD positively correlated with the coliforms and BOD _5 . In the dry season, the pH inversely correlated with the Pb and Fe positively. The ammonium correlated negatively with the DO and positively with the phosphates. The pH negatively connected with the alkalinity, while the As positively correlated with the BOD _5 and COD.https://doi.org/10.1088/2515-7620/ace87eBach Dang river basincorrelation coefficientGIS frameworkwater qualitywater quality index |
| spellingShingle | Manh Ha Nguyen Tuan Anh Tran Huu Tap Van Thi Huyen Ngoc Hoang Pham Chi Mai Phan Cong Long Nguyen Duc Toan Nguyen Thi Huong Pham Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods Environmental Research Communications Bach Dang river basin correlation coefficient GIS framework water quality water quality index |
| title | Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods |
| title_full | Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods |
| title_fullStr | Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods |
| title_full_unstemmed | Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods |
| title_short | Surface water quality assessment in the Bach Dang river basin, Vietnam: using water quality index and geographical information system methods |
| title_sort | surface water quality assessment in the bach dang river basin vietnam using water quality index and geographical information system methods |
| topic | Bach Dang river basin correlation coefficient GIS framework water quality water quality index |
| url | https://doi.org/10.1088/2515-7620/ace87e |
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