Abstract
The major and trace elements in the water samples of Loktak lake and Nambul river, the most polluted river draining into the lake were determined by using Energy Dispersive X-ray Fluorescence (EDXRF) technique. The physico-chemical parameters as well as the concentration of trace elements so far detected were compared with that of WHO limits for both cases and a comparative study were done to investigate the influence of the river to the quality of water of the lake. The co-efficient of correlation among the elements so far detected from both water samples were observed and it was found to be highest between copper (Cu) and manganese (Mn) was found followed by that of Cu and zinc (Zn) leading to the conclusion that if Cu concentration was higher, then there would be higher concentration of Mn and Zn. Though the polluted water of the Nambul river is drained into the lake, the concentration of different elements in the lake water were found to be within the safe limit prescribed by WHO except for iron (Fe). Key words: EDXRF, trace element, Loktak lake, Nambul River, Eutrofication.
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