A STUDY OF SOME PHYSICOCHEMICAL PARAMETERS OF PLASTIC BOTTLED DRINKING WATER FROM DIFFERENT SOURCES (MANUFACTURED BRANDS) IN KURDISTAN REGION-IRAQ.
The analysis of some physicochemical parameters and the heavy metals of Cr, Co, Ni and Cu were carried out in samples of plastic bottled drinking water of Seven brands in Iraqi Kurdistan Region for a three sampling collection during November 2013 to May 2014. The analysis of different parameters namely; pH, turbidity, total hardness, dissolved oxygen (DO), chloride (Cl-), calcium (Ca+2) were carried out as per standard methods. The present study aimed to compare the measured results of the physicochemical properties of the bottled water with the reported results on the plastic bottles of the manufacturer's labeling brands and also to compare with the guideline value of World Health Organization (WHO). Furthermore, this study also objected to indicate the levels of these heavy metals (Cr, Co, Ni and Cu) content in the samples of the studied brands. The results obtained were found exceedence of WHO drinking water standard for Chromium & Nickel in Life, Alla, and Kani; exceedence for Nickel in OXAB and Hayat; even so they have not been reported on the label. Therefore, further studies are recommended; especially, analyses of microbiological tests, and also analysing more heavy metals.