| Autor: |
Rahman, M. Moklesur, Mahmud, Azhar, Amin, Md. Al, Hossain, Md. Shahadat, Bai, Ling, Shaibur, Molla Rahman, Rahman, Md. Aliur, Khan, Abu Shamim |
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| Zdroj: |
Arabian Journal of Geosciences; Dec2023, Vol. 16 Issue 12, p1-17, 17p |
| Abstrakt: |
This study was carried out with the objective of quantifying the concentrations of various physicochemical parameters of the groundwater (GW) and evaluating the interactions between the GW and the carrier rocks. Forty-two (42) GW samples were collected from different tube wells distributed in and around the Jashore University of Science and Technology (JUST) campus. The result showed that the cations and anions follow the order of Ca2+, Mg2+, Na+, K+, and HCO3-, Cl-, and SO42-, respectively, for most cases. In general, the GW was found to be slightly alkaline and hard to very hard. More than 50% of samples exceeded the permissible limit of arsenic and manganese contents. The Water Quality Index (WQI) represented that 60% of waters are good to excellent in categories as per World Health Organization (WHO) guidelines. The Pearson correlation showed statistically significant correlations between each pair of parameters, with maximum positive and negative r values of 0.80 and -0.54, respectively. The Principal Component Analysis (PCA) produced the six principle components among the 21 tested parameters (20 physicochemical and 1 is biological), which accounted for more than 81% of the total variance. Varius plots such as Piper, Durov, and Stiff Patterns suggested that the hydrogeochemical facies was dominated by the Ca-Mg-HCO3 water type. Finally, it was observed that the GW quality parameters in the Southwestern region of Bangladesh were governed mostly by the geochemical process of rock-water interaction, whereas the chemical weathering (dissolution) of calcite minerals was followed by the weathering of silicate minerals. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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