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. 2010 Feb;28(1):34–41. doi: 10.3329/jhpn.v28i1.4521

Fig. 4.

Fig. 4.

Effect of water-quality at source on water-quality in drinking cup stratified by water-treatment method

Small random noise was added to avoid over plotting. No correlation was found between quality of drinking-water at the supply source and the quality of drinking-water in drinking cup (n=79, Spearman rank correlation coefficient=−0.01, p=0.94);

CFU=Colony-forming unit