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Emerging contaminants in drinking water sources and their implications for public health
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M.H.M. Nazmul   , M.T. Osman , A.G. Moftah , M.W. Udayah , N.S. Sabet , A.J.K. Chowdhury |
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Abstract: (7 Views) |
This study investigates the occurrence, seasonal variation, and potential public health implications of emerging contaminants in drinking water sources. A computational evaluation was performed on 72 simulated water samples from six surface water and six ground water monitoring locations. Differences in concentrations, detection frequencies and seasonal patterns were assessed for six contaminants including pharmaceuticals, pesticides, bisphenol A and per and polyfluoroalkyl substances. The surface waters had higher median concentrations of carbamazepine (29.37 ng/L), diclofenac (27.40 ng/L) and bisphenol A (37.07 ng/L) than the groundwaters. Seasonal analysis shows high levels of contaminants during wet conditions, especially in surface water. Selected chemicals exceeded reference-dose screening thresholds under the simulated conditions. Human health screening yielded higher body-weight adjusted exposure estimates for children than adults. These findings emphasize the need for integrated contaminant monitoring, seasonal evaluation, and population-specific exposure assessment in identifying potential drinking water safety issues and informing future field investigations.
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| Keywords: Emerging Contaminants, Drinking water quality, Surface water and groundwater, Seasonal variation, Human health risk assessment |
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Full-Text [PDF 383 kb]
(9 Downloads)
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Type of Study: Research |
Subject:
Special
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