Water quality evaluation in selected coastal rivers of Tanzania using Water Quality Index
Abstract
Quality of water in Zigi, Pangani, Ruvu, Wami, and Kizinga rivers used as drinking water sources in Tanzania was assessed using water quality index (WQI). Most geochemical water parameters in rivers deviated negatively, indicative of meeting legal specifications. However, total dissolved solids (TDS) in Ruvu River, total suspended solids (TSS) in Wami and Zigi rivers, dissolved oxygen (DO) in Pangani, Zigi, and Kizinga rivers, ammonia in Wami River, and turbidity in Wami, Zigi, and Kizinga rivers deviated positively, indicating that they are responsible for water quality changes in rivers. Higher aquatic environment index values in Wami, Pangani, Zigi, and Kizinga rivers are indicative of relatively good water environment, and vice versa in Ruvu River, indicative of anthropogenic activities. WQI indicated that quality of water in these rivers ranged from good (Pangani River) to polluted (Zigi River), while other rivers were between this range. Frequent water quality monitoring campaigns are needed.
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Ali, S.K., 2018. Assessment of the Tigris River water quality in selected Iraqi governments. Int. J. Sci. Res. 7, 500–504. DOI:10.21275/ART20179406.
Alphayo, S.M., Sharma, M.P., 2018. Water quality assessment of Ruvu River in Tanzania using NSFWQI. J. Sci. Res. Rep. 20(3), 1–9. DOI: 10.9734/JSRR/2018/44324.
Al-Janabi, Z.Z., Al-Kubaisi, A.R., Al-Obaidy, A.H.M., 2012. Assessment of water quality of Tigris River by using water quality index (CCME WQI). J. Al-Nahrain University 15(1), 119–126.
Aydin, H., Ustaoğlu, F., Tepe, Y., Soylu, E.N., 2021. Assessment of water quality of streams in northeast Turkey by water quality index and multiple statistical methods. Environ. Forensics 22(1-2), 270-287. DOI: 10.1080/15275922.2020.1836074.
Batabyal, A.K., Chakraborty, S., 2015. Hydrogeochemistry and water quality Index in the assessment of groundwater quality for drinking uses. Water Environ. Res. 87(7), 607–617. DOI: 10.2175/106143015X14212658613956.
Canadian Council of Ministers of the Environment (CCME), 2017. Canadian water quality guidelines for the protection of aquatic life. CCME water quality index. User’s manual. CCME, Winnipeg, Manitoba, Canada. https://ccme.ca/en/res/wqimanualen.pdf (accessed 20 December 2019).
Chabuk, A., Al-Madhlom, Q., Al-Maliki, A., Al-Ansari, N., Hussain, H.M., Laue, J., 2020. Water quality assessment along Tigris River (Iraq) using water quality index (WQI) and GIS software. Arab. J. Geosci. 13, 654. https://doi.org/10.1007/s12517-020-05575-5.
Damo, R., Icka, P., 2013. Evaluation of water quality index for drinking water, Pol. J. Environ. Stud. 22(4), 1045-1051.
El-Otify, A.M., Iskaros, I.A., 2015. Water quality and potamoplankton evaluation of the Nile River in Upper Egypt. Acta Limnol. Bras. 27(2), 171–190. https://doi.org/10.1590/S2179-975X4014.
Governmental Decree (GD), 2013. Governmental Decree No 92/2013. Ministry of Water Resources and irrigation amending the implementing regulations of Law 48/1982 on the protection of the River Nile and watercourses from pollution and defining certain rules on the surface water monitoring and state assessment (in Arabic) in Rizk, R., Juzsakova, T., Cretescu, I., Rawash, M., Sebestyén, V., Le Phuoc, C., Kovács, Z., Domokos, E., Rédey, Á., Shafik, H., 2020. Environmental assessment of physical-chemical features of Lake Nasser, Egypt, Environ. Sci. Pollut. Res. 27, 20136–20148. https://doi.org/10.1007/s11356-020-08366-3.
GLOW-FIU 2014. Wami River Basin, Tanzania, environmental flow assessment Phase II. Global Water for Sustainability Program, Florida International University.
GLOWS 2015. A rapid ecohydrological assessment of the Ruvu River estuary, Tanzania. Global Water for Sustainability Program, Florida International University.
Hamilton, A.C., Bensted-Smith, R., 1989. Forest conservation in the Usambara Mountains, Tanzania, IUCN, Giand, Switzerland and Cambridge, UK.
Hellar-Kihampa, H., DeWael, K., Lugwisha, E., Van Grieken, R., 2013. Water quality assessment in the Pangani River basin, Tanzania: Natural and anthropogenic influences on the concentrations of nutrients and inorganic ions. Int. J. River Basin Manag. 11:1, 55-75. DOI: 10.1080/15715124.2012.759119.
Kashindye, A., Giliba, R., Sereka, M., Masologo, D., Lyatuu, G., Mpanda. M., 2019. Balancing land management under livestock keeping regimes: A Case of Ruvu and Zigi catchments in Tanzania. Afr. J. Environ. Sci. Technol. 13(7), 281–290. DOI: 10.5897/AJEST.
Ma, X., Wang, L., Yang, H., Li, N., Gong, C., 2020. Spatiotemporal analysis of water quality using multivariate statistical techniques and the water quality identification index for the Qinhuai River Basin, East China, Water 12(10), 2764. doi:10.3390/w12102764.
Mahapatra, S.S., Sahu, M., Patel, R.K., Panda, B.M., 2012. Prediction of water quality using principal component analysis. Water Qual. Expo. Health 4, 93-104. DOI 10.1007/s12403-012-0068-9.
Mckenzie, J.M., Mark, B.G., Thompson, L.G., Schotterer, U., Lin, P., 2010. A hydrogeochemical survey of Kilimanjaro (Tanzania): implications for water sources and ages. Hydrogeol. J. 18, 985–995. https://doi.org/10.1007/s10040-009-0558-4.
Mkude, I.T., Kodom, K., Onoyinka, A.A., Saria, J. Mihale, M.J., 2018. Spatial and temporal variations of physicochemical parameters in surface water of Wami River, Tanzania. Int. J. Dev. Sustain. 7(6), 1936-1945.
Mihale, M.J., Tungaraza, C., Baeyens, W., Brion, N., 2021. Distribution and sources of carbon, nitrogen and their isotopic compositions in tropical estuarine sediments of Mtoni, Tanzania, Ocean Sci. J. 56(2), (in press). DOI: 10.1007/s12601-021-00029-9.
Németh, J., Sebestyén, V., Juzsakova, T., Domokos, E., Dióssy, L., Le Phuoc, C., Huszka P., Rédey Á., 2017. Methodology development on aquatic environmental assessment. Environ. Sci. Pollut. Res. 24, 11126–11140. https://doi.org/10.1007/s11356-016-7941-1
Ngoye, E., Mahiwa J.F., 2004. The Influence of land-use patterns in the Ruvu river on water quality in the river system. Phys Chem Earth. 29, 1161-1166. https://doi.org/10.1016/j.pce.2004.09.002.
Olasoji, S.O., Oyewole, N.O., Abiola, B., Edokpayi, J.N., 2019. Water quality assessment of surface and groundwater sources using a water quality index method: A case study of a peri-urban town in Southwest, Nigeria. Environments 6(23), 23. doi:10.3390/environments6020023.
PBWO/IUCN, 2007. Pangani River system: state of the basin report, Tanzania. Pangani Basin Water Office (PBWO) – The World Conservation Union. https://portals.iucn.org/library/node/9031 (accessed 27 April 2021).
Rahmanian, N., Ali, S.H.B., Homayoonfard, M., Ali, N.J., Rehan, M., Sadef, Y., Nizami, A.S., 2015. Analysis of physiochemical parameters to evaluate the drinking water quality in the State of Perak, Malaysia, J. Chem. 2015, http://dx.doi.org/10.1155/2015/716125.
Rizk, R., Juzsakova, T., Cretescu, I., Rawash, M., Sebestyén, V., Le Phuoc, C., Kovács, Z., Domokos, E., Rédey, Á., Shafik, H., 2020. Environmental assessment of physical-chemical features of Lake Nasser, Egypt, Environ. Sci. Pollut. Res. 27, 20136–20148. https://doi.org/10.1007/s11356-020-08366-3.
Sahu, M., Mahapatra, S.S., Sahu, H.B., Patel, R.K., 2011. Prediction of water quality index using neuro fuzzy inference system, Water Qual. Expo. Health 3, 175–191. DOI 10.1007/s12403-011-0054-7.
Sahu, P., Sikdar, P.K., 2008. Hydrochemical framework of the aquifer in and around East Kolkata wetlands, West Bengal, India. Environ. Geol. 55(4), 823–835. https://doi.org/10.1007/s00254-007-1034-x.
Selemani, J.R., Zhang, J., Muzuka, A.N., Njau, K.N., Zhang, G., Maggid, A., Mzuza M.K., Jin, J., Pradhan, S., 2017. Seasonal water chemistry variability in the Pangani River basin, Tanzania. Environ. Sci. Pollut. Res. 24, 26092–26110. https://doi.org/10.1007/s11356-017-0221-x.
Shah, K.A., Joshi, G.S., 2015. Evaluation of water quality index for River Sabarmati, Gujarat, India. Appl. Water Sci. 7, 1349–1358. https://doi.org/10.1007/s13201-015-0318-7.
Shil, S., Singh, U.K., Mehta, P., 2019. Water quality assessment of a tropical river using water quality index (WQI), multivariate statistical techniques and GIS. Appl. Water Sci. 9, 168. https://doi.org/10.1007/s13201-019-1045-2.
Tanzania Bureau of Standards, TBS, 2008. Drinking (potable) Water: Specification. National Environmental Standards Compendium (NESC), (TZS 789:2008) Tanzania Bureau of Standards, Dar es Salaam, Tanzania.
Tanzania Bureau of Standards, TBS, 2019. Drinking (potable) water Specification (TZS 789: 2019, third ed. EAS 12, Tanzania Bureau of Standards, Dar es Salaam, Tanzania.
Tian, Y., Jiang, Y., Liu, Q., Dong, M., Xu, D., Liu, Y., Xu, X., 2019. Using a water quality index to assess the water quality of the upper and middle streams of the Luanhe River, Northern China. Sci. Total Environ. 667, 142-151. https://doi.org/10.1016/j.scitotenv.2019.02.356.
Tyagi, S., Sharma, B., Singh, P., Dobhal, R., 2013. Water quality assessment in terms of water quality index. Am. J. Water. Resour. 1, 34–38. DOI: 10.12691/ajwr-1-3-3.
United Republic of Tanzania (URT), 1995. Rapid water resources assessment, Vol. 1, Main Report, Ministry of Water, Energy and Minerals, United Republic of Tanzania.
Vasanthavigar, M., Srinivasamoorthy, K., Vijayaragavan, K., Rajiv Ganthi, R., Chidambaram, S., Anandhan, P., Manivannan, R., Vasudevan, S., 2010. Application of water quality index for groundwater quality assessment: Thirumanimuttar sub-basin, Tamilnadu, India. Environ. Monit. Assess. 171, 595–609. https://doi.org/10.1007/s10661-009-1302-1.
World Health Organisation (WHO), 2008. Guidelines for drinking water quality, third ed. Vol. 1: Recommendations. WHO, Geneva.
World Health Organisation (WHO), 2011. Guidelines for drinking water quality, fourth ed. WHO, Geneva.
Wu, Z., Lai, X., Li, K., 2021. Water quality assessment of rivers in Lake Chaohu Basin (China) using water quality index. Ecol. Indic. 121, 107021. https://doi.org/10.1016/j.ecolind.2020.107021.
Yenugu, S.R., Vangala, S., Badri, S,. 2020. Groundwater quality evaluation using GIS and water quality index in and around inactive mines, Southwestern parts of Cuddapah basin, Andhra Pradesh, South India. HydroResearch 3, 146-157. DOI:10.1016/j.hydres.2020.11.001.
DOI: https://doi.org/10.23954/osj.v7i1.3072
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