Results And Discussion

Principal component analysis has been quite useful in deducing the end-member components of groundwater [1]. Plots of the first two principal components in the present case as shown in Figure 7.3 reveal an interesting mixing trend between the hot spring water and the uncontaminated groundwater, resulting in enriched fluoride content in the latter. The colinearity of the plots necessarily rules out the involvement of any other water type. The cause of fluoride enrichment in the groundwater is thus discernible.

7.6.2 Factor Analysis

The parameters presented in Table 7.1 lack good correlation and therefore the resolvability of the total variance of the system is not satisfactory. Out of the various combinations that were tried,

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