Pusat Pengajian Sains Kesihatan - Monograf

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A study on heavy metal contamination of well water at Pasir Mas, kelantan : perspective of water quality index.
(2015)
Abdullah, Nur Liana
Well water is one of the source of the drinking water in Kelantan. The assessment for well water quality is very important in evaluating the suitability of the water for drinking and other domestic purposes. The aims of this study is to determine the heavy metal contamination in the well water in Pasir Mas area. In this study seven parameter water quality such as temperature, DO, pH, COD, BOD, NH3-N and SS were recorded. In addition, heavy metals such as Zn, Fe, Mn and Pb were investigate. In-situ measurement of water quality such as pH, temperature and DO were measured by using YSI portable Multi-probes meter. Ex-situ measurement such as BOD, AN, COD, and SS were carried out in the laboratory. Statistical analysis of One-Way ANOVA test shows that there is no significant different between pH, COD, BOD, Zn, Fe and Pb in all ten stations involved. The concentration of Zn, Fe, Mn and Pb were found in range of 0.02-0.08 mg/1, 0.04-0.29 mg/1, 0.09-0.76 mg/1 and 0.02-0.08 mg/1 respectively. Overall, the Water Quality Index were categorized under class III and it is considered polluted in Pasir Mas area.