Assessment of spatial and temporal variations of groundwater quality using WQI during two decades in aquifer of Golestan province

Document Type : Research Paper

Authors

1 M.Sc.Water Resource Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Golestan, Iran

2 Associate Professor of Water Engineering Department, Gorgan University of Agricultural Sciences and Natural Resources, Golestan, Iran

3 Assistant Professor of Water Engineering Department, Gorgan University of Agricultural Sciences and Natural Resources, Golestan, Iran

Abstract

Groundwater is of valuable resources that its conservation needs quality and quantity monitoring. Different indices such as WQI (water quality index) are used in order to monitor the groundwater quality. The objective of this study is to assess spatial-temporal changes in WQI in groundwater aquifer of Golestan province including Ghare-Sou, Grgan-Roud and Gorgan gulf basins. The Golestan province was selected as the study area. WQI was calculated based on the quality parameters data of 114 deep wells in the study area, collected during a 21-years period. After zoning WQI in GIS, the spatial-temporal changes of this index were investigated considering the range of changes, the observed minimum and maximum values during the study period. The empirical Bayesian kriging method presented better results in comparison to other methods for WQI zoning in GIS environment. The quality zoning of WQI in the studied area showed that the aquifer is in a good and very good condition and it is only bad in a small part of aquifer located in the eastern shores of the Caspian Sea and the northern part of the study area. In addition, no considerable differences were found between the WQI averages of the two events data sampling during the year. Also, the investigations show a decrease in water quality as closing to the sea shore and to the northern part of the study area. According to the fact that WQI follow the general slope of the region, there was a good spatial structure in the region which caused a better result for empirical Bayesian kriging interpolation method.

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References

Al-Hadithi, M. (2012). Application of water quality index to assess suitability of groundwater quality for drinking purposes in Ratmao-Pathri Rao watershed, Haridwar district, India. American journal of scientific and industrial research. DOI:10.5251/ajsir.
Ashayeri, A., Karbasi, A.and Baghvand, A. (2014). Assessing Darreh-rood river water quality for irrigation using sustainable conservation approach and CCME-WQI model. ISSN 2251-7480,3(4):51-61. (In Farsi)
Bahrami Jovein, E. and Hosseini, S.M. (2015). A systematic comparison of Geostatistical methods for estimation of groundwater salinity in Desert areas. Case study: Feyz Abad Mahvelat plain. Iran-water Resources,11(2):1-15. (In Farsi)
Bharti, N., Katyal, D. (2011). Water quality indices used for surface water Vulnerability assessment.International journal of environmental sciences,2(1).
Bora, M .and Goswami, D.C. (2016). water quality assessment in terms of warwe quality index(WQI): Case study of the Kolong river, Assam, India. Appl water Sci. DOI:10.1007/s13201-016-0451-y.
Chatterjee, R., Tarafder, G. and Paul, S. (2010). Groundwater quality assessment of Dhanbad district Jharkhand, India. Bull Eng Geol Environ, 69:137-141.
Fathi, P., Ebrahimi, E. and Mirghafari, N. (2016). The study and temporal changes of water quality in choghakhor wetland using water quality index(WQI). Journal of Aquatic Ecology, 5(3):41-50. (In Farsi)
Ghorbani, Kh. (2012). Geographically weighted regression: A method for mapping isohyets in Gilan province. Journal of water and soil, 26(3):743-752. (In Farsi)
Javid, A.H., Mirbagheri, S.A.and Karimian, A. (2014). Assessing Dez Dam reservoir water quality by application of WQI and TSI indices. Iran.J.Health and Environ,7(2):133-142.(In Farsi)
Ishaku. J.M. (2011). Assessment of groundwater quality index for Jimeta-Yola area, Northeastern Nigeria. Journal of geology and mining research vol.3(9), pp.219-231.
Yisa. J. and T. Jimoh(2010). Analytical studies on water quality index of river Landzu. American journal of applied sciences,7(4):453-458.
Kalpana, G.R., Nagarajappa, D.P., Sham Sunder, K.M. and Suresh, B. (2014). Determination of Groundwater Quality Index in Vidyanagar, Davanagere city, Karnataka State, India. International Journal of Engineering and Innovative Technology(IJEIT), 3(12).
Ketata Rokbani, M., Gueddari, M.and Bouhlila, R. (2013). Use of Geographical Information System and Water Quality Index to Assess Groundwater Quality in Ei Khairat Deep Aquifer (Enfidha, Tunisian Sahel). Iranica Journal of Energy and Environment, 2(2):133-144.
Kumar Tiwari, A., Kumar Singh, P. and Kumar-Mahato, M. (2014). GIS-based of evaluation of warwe quality index of groundwater resources in West Bokaro Coalfield, India. Current world environment, 9(3):843-850.
Poonam, T., Tanushree, B. and Sukalyan, Ch. (2013). Water quality indices-Important tools for water quality assessment: A Review. International journal of Advanus in cheistry,1(1).
Ramakrishnaiah, C.R., Sadashivaiah, C.and Ranganna, G. (2009). Assessment of Water Quality Index for the Groundwater in Tumkur Taluk, Karnataka, India. CODEN ECJHAO E-Journal of chemistry, 6(2):523-530.
Rupal, M., Tanushree, B.and Sukalyan, Ch. (2012). Quality characterization of groundwater using water quality index in Surat city, Gujarat,India. International Research Journal of Environment Sciences, 1(4):14-23
Sadat-Noori, S.M., Ebrahimi, K. and Liaghat, A.M. (2013). Groundwater quality assessment using the Water Quality Index and GIS in Saveh-Nobaran aquifer,Iran. Environ Earth Sci. Doi:10/1007/s12665-013-2770-80.
Sahu, P. and Sikdar, O.K. (2007). Hydrochemical frame work of the aquifer in and around East Kolkata Wetlands, West Bengal, India. Environ Geol, 55:823-835. Doi:10.1007/s00254-007-1034-x.
Subbiah, K., Magesh, N.S., Samuel Godson, P. and Chandrasekar, N. (2015). Hydro-geochemistry and application of water quality in index (WQI) for groundwater quality assessment, Anna Nagar, part of Chennai city, Tamil Nadu, India. Appl water Sci, Doi:10.1007/s13201-014-0196-4.
Vasanthavigar, M., Srinivasamoorty, K., Vijayaragavan, K., Rajiv Ganthi, R., Chidambaran, S., Anadhan, P., Manivannan, R. and Vasudevan, S. (2010). Application of water quality index for groundwater quality assessment: Thirumanimuttar Sub-basin, Tamilnadu, India. Environ Monit Assess, 171:595-609. Doi:10/1007/s10661-009-1302-1.
WHO .(2004). Guidelines for drinking water quality:training pack.WHO,geneva,Switzerland.
Iranian Journal of Soil and Water Research
Volume 50, Issue 1
March and April 2019
Pages 39-51

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