Examination of Water Quality Stored in PET Bottles in Niger Delta Environment: The Effect of Sun Radiation
Abstract
Physiochemical properties of water quality stored in Polyethylene Terephthalate (PET) bottles in the Niger Delta environment upon the influence of sun radiation was examined in terms of pH, Cl, NO- 3, PO4, Total Dissolved Solid
(TDS), Total Suspended Solid (TSS) and Total hardness. Four brands of bottled water in Nigeria, South-South region were analyzed using standard methods for this investigation. The physiochemical properties of the bottled water measured in this work were compared with the guideline values of World Health Organization (WHO) and Nigerian Industrial Standards. The change of physiochemical properties when the bottled water were exposed to sunlight at different temperatures for six weeks were investigated. Results indicated that the quality of bottled water samples was within the permissible limit, although slight changes in all physiochemical properties of water in the plastic bottles were noticed while there was no indication of migration of additives from PET bottles into the water as seen in the TDS and TSS results.
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