摘要
Malampuzha reservoir is a multipurpose reservoir in south India.Seven water samples and four sediment samples were studied for the physico-chemical and bacteriological nature of the Malampuzha reservoir water and sediments.Bacteriological analysis indicated the microbial contamination of the reservoir and the physico-chemical characteristics indicated that the water is non potable directly.Analysis of irrigational water quality by SAR,Kelly's ratio and SSP indicates that the reservoir water is suitable for irrigation.Heavy metal pollution of the sediments was evaluated based on Sediment Quality Guidelines(SQG),Pollution Load Index(PLI)and degree of contamination(Cd)of soil in four stations.Principal Component Analysis(PCA)was done to find out the possible linear combination of the original variables of trace metals.Results of PCA showed that no collinearity existed among the studied metals.However,emphasis on the monitoring of Cu and Ni should be preferred because of its alarmingly higher contamination value.
