Abstract：
:High concentrations of trihalomethanes (THMs) in public water supplies potentially pose a health hazard, but exposure assessment remains a complex task. To interpret research findings and monitoring data for THMs, it is important to evaluate spatial and temporal variations in both total THM and the individual constituent compounds (including brominated species). We therefore aimed to determine the concentrations, and spatial and temporal variability of concentrations, of THMs public water supplies in Perth, Western Australia, which is known historically to have high brominated THM concentrations. We analysed water samples from 21 water distribution zones around Perth (including Busselton and Bunbury) across different seasons over a period of two years. A total of 250 samples provided a median total THM of 72 µg/L (range of 0-157 µg/L), which falls well within Australia's National Health and Medical Research Council guidelines. The concentration of all species, including brominated forms, also fell the World Health Organization's guidelines. Total THM concentrations were typically higher in spring and summer. A high degree of spatial variability was detected and appears to relate to the source water. Both the temporal and spatial variability in THM concentrations have implications for epidemiological studies, and monitoring.
journal_name
Int J Environ Res Public Healthauthors
Stanhope J,Davidson G,McAuley K,Cook A,Weinstein Pdoi
10.3390/ijerph17197280subject
Has Abstractpub_date
2020-10-05 00:00:00issue
19eissn
1661-7827issn
1660-4601pii
ijerph17197280journal_volume
17pub_type
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