Authors: 1Manutha A/P Appa Rwoo | 2Dr Normala Halimoon
Faculty of Environmental Studies, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia.
Email:divina87_2000@yahoo.com
Abstract
This research investigates the relationship between the physicochemical levels and the drinking water quality in Kuala Kubu Bharu, Selangor based on three different classes of drinking water. For this study the environmentric techniques such as the discriminant analysis (DA), the principal component analysis (PCA) and the factor analysis (FA) were applied to analyze the spatial variation of the most significant physicochemical parameters of the drinking water quality and to determine the source of pollution. Seven physicochemical variables were analyzed. The forward and backward stepwise DA managed to discriminate six and two variables, respectively from the original seven variables. PCA and FA (varimax functionality) were to identify the origin of each water quality variable based on the three different drinking water classes. Three PCs with 74.37% total variance were obtained for the raw water, settled water and clean water.Therefore this study shows that environmetric method is the ideal way in to provide meaningful information on the spatial variability of sophisticated drinking water quality data.
Keywords: Kuala Kubu Bharu, drinking water quality, physicochemical, discriminant analysis(DA), principal component analysis(PCA)
