Application of multivariate statistical analysis and water quality index in health risk assessment by domestic use of river water. Case study of Tana River in Kenya
文献类型：期刊论文
| 作者 | Njuguna, Samwel Maina1,2; Onyango, Janet Atieno1,2; Githaiga, Kelvin Babu1,2; Gituru, Robert Wahiti4; Yan, Xue1,2,3 |
| 刊名 | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
 |
| 出版日期 | 2020 |
| 卷号 | 133页码:149-158 |
| 关键词 | Tana River Risk assessment Nutrients Heavy metals Water quality index |
| ISSN号 | 0957-5820 |
| DOI | 10.1016/j.psep.2019.11.006 |
| 英文摘要 | Tana River basin covers approximately 21 % of Kenya's total land area. The basin produces about 33.5 % of the country's surface water and 23.8 % of ground water that supports about seven million people. To assess metal and nutrient concentration of Tana River surface water, 57 and 53 water samples were collected in wet (May) and dry (August) seasons of 2018, respectively. Cadmium, chromium, nickel, lead, mercury, arsenic, manganese, zinc, copper, aluminum, boron, selenium, fluoride, chloride, total phosphorus and nitrate were analyzed. Water quality index (WQI) was used to classify water quality into four categories based on pollution level while hazard quotient (HQ) and hazard index (HI) were used to assess non-carcinogenic risk posed to human health since majority of people in the lower reach use Tana River water without any form of treatment. Multivariate statistical analysis was applied to deduce associations and identify pollution sources. Arsenic, cadmium, lead, nickel, selenium and mercury were not detected while manganese, chloride and aluminum were the principal pollutants in the two seasons. 26.3 % of all studied sites recorded HQ> 1 due to high Mn contamination. WQI was noted to be unreliable risk assessment tool since it did not correlate well with HQ and HI besides portraying all sampling sites as bearing suitable water for drinking. Tana River is at risk of eutrophication since total phosphorus concentration detected exceeded recommended threshold. Leached fertilizer from encroached riparian zone, fuel from leaking irrigation pumps and cleaning of motor bikes on water ways was the main source of anthropogenic pollution. Pollution processes and practices observed can be remedied to curb detrimental effects on human health. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. |
| 资助项目 | Sino-Africa Joint Research Center[SAJC201601] ; Chinese Academy of Sciences ; National Natural Sciences of China[NSFC 31361140360] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000506408700014 |
| 出版者 | ELSEVIER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/14775]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Yan, Xue |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan 430074, Peoples R China 4.Jomo Kenyatta Univ Sci & Technol, Juja, Kenya |
| 推荐引用方式 GB/T 7714 | Njuguna, Samwel Maina,Onyango, Janet Atieno,Githaiga, Kelvin Babu,et al. Application of multivariate statistical analysis and water quality index in health risk assessment by domestic use of river water. Case study of Tana River in Kenya[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2020,133:149-158. |
| APA | Njuguna, Samwel Maina,Onyango, Janet Atieno,Githaiga, Kelvin Babu,Gituru, Robert Wahiti,&Yan, Xue.(2020).Application of multivariate statistical analysis and water quality index in health risk assessment by domestic use of river water. Case study of Tana River in Kenya.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,133,149-158. |
| MLA | Njuguna, Samwel Maina,et al."Application of multivariate statistical analysis and water quality index in health risk assessment by domestic use of river water. Case study of Tana River in Kenya".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 133(2020):149-158. |
入库方式： OAI收割
来源：武汉植物园
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