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Evaluation of heavy metals content in different local brands of bottled drinking water
Wan Noni Afida Ab Manan1, Nurul Nadirah Zulkifli2.
A high concentration of heavy metals in bottled drinking water has affected
many people around the world in a long-term effect. This study investigates
the physical and chemical properties of local brands of bottled drinking
water. Thus, the aims of this study are to determine selected heavy metals
concentration and to estimate health risks. Four different local brands of
drinking water were purchased from the supermarket as the samples in this
study. All water samples were labelled as Sample A, B, C, and D. The pH,
temperature, and types of heavy metals present in the drinking water samples
were identified and the Chronic Daily Intake (CDI) and Hazard Quotient
(HQ) were estimated. All samples were analysed using Inductively Coupled
Plasma Optical Emission Spectrometry (ICP-OES) for determining the
concentration of heavy metals. The pH for all drinking water samples was
within the limits. The temperature for all samples was ranged from 23.5 to
23.9 °C. The types of heavy metals that exist in the drinking water samples
were Al, Fe, and Mg with a range of metals between 0.02 – 0.09 mg/l. In
conclusion, all drinking water samples are safe to consume as all water
samples were HQ < 1 and within the acceptable range of metals in water.
Affiliation:
- Universiti Teknologi MARA Cawangan Pahang, Malaysia
- Universiti Teknologi MARA Cawangan Pahang, Malaysia
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