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Articles by Shah Md. Helal Uddin
Total Records ( 2 ) for Shah Md. Helal Uddin
  Shah Md. Helal Uddin , M.J. Islam , A.K.M. Faruk-E-Azam , M.A. Hakim and Saiful Huda
  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 (HT ). pH values (6.75-7.27) indicated that the waters were slightly T 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 4 under ‘good’ and ‘permissible’ classes. SAR and EC categorized the waters as C1-S1. All waters were found under ‘soft’ class regarding hardness with ‘suitable’ 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.
  M.J. Islam , Shah Md. Helal Uddin , Saiful Huda , M.S. Rahman , M.F. Hossain and Mst. Nahida Laiju
  A study was conducted to evaluate the pond and well water quality at Matiranga Upazilla under very remote areas of Khagrachari Hill District of Bangladesh. The chemical analyses of water included pH, EC, total cations (Ca++, Mg++, Na+, K+, Zn++, Cu++, Mn++, Fe+++, As+++, P+5 and B+3), total anions (CO3--, HCO3- SO4--, NO3- Cl-, TDS, SAR, SSP, RSC and hardness (HT). pH values (6.01-7.17) indicated that the waters were slightly acidic to neutral. Waters contained Ca++, Mg++, Na+, K+, HCO3- and Cl- predominantly along with Zn++, P+5 and B+3 in lesser amounts. Mn++, Cu++ and Fe+++ were found trace to very little amount. As+3 and SO4-- were found trace. TDS and SAR values indicated that all water were under "freshwater" and "excellent" class respectively. SSP of most waters were under "good" "permissible" and "doubtful" class. SAR and EC categorized the waters as C1-S1. All waters were found under "soft" class regarding hardness with "suitable" RSC. Based on As+3, Fe+3, Mn++, Zn++, SO4--, NO3- and Cl- all waters were within the "safe" limit for drinking.

 
 
 
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