Water Resources Quality and Factors Affecting Public Drinking Water Quality in Khon Kaen
Keywords:
Public drinking water, Water qualityAbstract
This study aimed to investigate factors affecting the public drinking water quality in Khon Kaen province. Several parameters were analyzed including physical properties (pH), chemical properties such as total solid, biological properties such as coliform bacteria and sanitation of production sites. 37 water samples were randomly collected. The result showed that 18 samples (48.65%) have met the drinking-water quality standards while 19 samples (51.35%) have failed. Among those 19 substandard samples, 42.10% were lower than pH standard range, 36.84% with positive coliform bacteria, 15.79% were high in total solid content and 5.26% were unaccepted in pH range and nitrate content. Moreover, 8 out of 37 production sites (22%) were unhygienic. The current study also suggested that factors significantly affected drinking water quality were the suitability of the location and equipment (P-value = 0.04), clearing the raw water storage (P-value = 0.02) and quality of raw water used in production (P-value = 0.04). This study could provide the useful information to improve a production process for drinking water to meet the standards for consumers’ safety.
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