Fate simulation and risk assessment of endocrine disrupting chemicals in a reservoir receiving recycled wastewater

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Title Fate simulation and risk assessment of endocrine disrupting chemicals in a reservoir receiving recycled wastewater
Author Cao, Qiming; Yu, Jimmy; Connell, Des
Journal Name Science of the Total Environment
Year Published 2010
Place of publication United States
Publisher Elsevier
Abstract A fugacity based model was applied to simulate the distribution of three endocrine disrupting chemicals (EDCs), namely estrone (E1), 17β-estradiol (E2) and 17α-ethynylestradiol (EE2) in a reservoir receiving recycled wastewater in Australia. At typical conditions, the majority of estrogens were removed by degradation in the water compartment. A sensitivity analysis found that the simulated concentrations of E1, E2 and EE2 were equally sensitive to the parameters of temperature (T), reservoir water volume (V) and equivalent biomass concentration (EBC), but E1 was more sensitive to estrogen concentration in the recycled water (Ce) and recycling rate (Fr). In contrast, all three estrogens were not sensitive to reservoir water releasing rate (Fd). Furthermore, a probabilistic health risk assessment showed that the simulated concentrations were below fish exposure threshold value (ETV) and human public health standard (PHS). Human equivalent dose of EDCs from fish consumption was about 10 times higher than that from drinking water consumption. The highest risk quotient among the three estrogens was found for EE2 with less than 9.5 × 10-2, implying negligible health risks.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.scitotenv.2010.08.059
Volume 408
Issue Number 24
Page from 6243
Page to 6250
ISSN 0048-9697
Date Accessioned 2010-10-28
Date Available 2011-02-02T06:55:11Z
Language en_AU
Research Centre Atmospheric Environment Research Centre
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Environmental Engineering Modelling
URI http://hdl.handle.net/10072/35932
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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