Determination of aluminium and manganese concentration and health risk assessment in reticulation system at Sungai Buaya Water Treatment Plant, Hulu Selangor / Rozahan Haji Rosely

A study on non-compliance of heavy metal Aluminium (Al) content in the treated water supplied by the Sungai Buaya water treatment plant in 2011 are quite disturbing. This is because Aluminium if used or acquired in excess can contribute to health effects such as neurological effects, mental disorders, fatigue, muscle weakness, mild pain and so forth. A study was conducted to determine the concentrations of Aluminium and health risk assessment in the reticulation system at Sungai Buaya water treatment plant Hutu Selangor, and also analyzes other parameters such as residual chlorine, pH, colour, turbidity and heavy metals, namely Manganese (Mg) in the raw water and treated water. Sampling locations are in the raw water (Sungai Darah), plant (TPO) and (SRO), which is consists of home residents, mosques and village clinics. Number of samples is five raw water samples, five samples of treated plants (TPO) and five samples (SRO) for a total of 15 samples for each time of sampling. Sampling was carried out 3 times with a total sample of 45 samples. Analysis of in-situ readings done in the field of chlorine residual, pH, turbidity, and colour, while the analysis of heavy metals, namely Aluminium and Manganese carried out in Universiti Teknologi Mara (UiTM) Puncak Alam water laboratory. Results received are observed for all samples taken when compared with drinking water quality standards. No correlation between the concentration of Aluminium and Manganese health effects and hazard index shows a value less than 1, meaning that no potential chronic effects occur.