Toxicity assessment of surface water in different remote aquifers of khagrachari in Bangladesh
2003
Uddin, S.M.H. (Ministry of Planning, Bangladesh (Bangladesh). Planning Div.) | Islam, M.J. | Faruk-e-Azam, A.K.M. | Hakim, M.A. | Huda, S.
An investigation was conducted to evaluate the surface water quality at Matrianga Upazilla under very remote areas of Khagrachrari Hill District of Bangladesh. The chemical analyses of water collected from canals included pH, EC, total cations (Ca, Mg, Na, K, Zn, Cu, Mn, Fe, As, P and B), Total anions (CO3, HCO3, SO4, NO3, C1), TDS, SAR, SSP, RSC and hardness (H1). pH values (6.75-7.27) indicated that the waters were slightly acidic to neutral. waters contained Ca, Mg, Na, K, HOC3 and C1 predominantly along with Zn, P and B in lesser amounts. Mn, Cu and As were found trace to very little amount. Fe and SO4 were found trace. TDS and SAR values indicated that all waters were under 'good' and `permissible' classes. SAR and EC categorized the waters as C1-S1. All waters were found under `soft' class regarding hardness with þsuitableþ RSC. Based on As, Fe, Mn, Zn, SO4, NO3, and C1 all waters were within the 'safe' limit for drinking except one sample for As.
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