Journal of Ecology and Rural Environment ›› 2017, Vol. 33 ›› Issue (10): 921-927.doi: 10.11934/j.issn.1673-4831.2017.10.008

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Ecological Risk Assessment of Triclocarban in Fresh Water of China by Species Sensitivity Distribution

WANG Zhen, YANG Xian-hai, FAN De-ling, GUO Min, LIU Ji-ning, SHI Li-li   

  1. Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
  • Received:2016-11-28 Online:2017-10-25 Published:2017-11-24


The species sensitivity distributions (SSD) method was used to plot SSD curves of triclocarban (TCC) to freshwater organisms, and acute hazardous concentration for 5% of the species (HC5) of TCC was calculated. The log-normal distribution model was used to work out acute ρ(HC5)=3.85 μg·L-1, and based on AF=3 and acute to chronic ratios=39.3, chronic PNEC was worked out to be 32.7 ng·L-1. Risk quotient method was used in assessing ecological risk of triclocarban in 21 typical reported survey points of surface water, and the results of the assessment showed that the percentage for high risk, medium risk and low risk of TCC were 28.6%, 47.6% and 23.8%. The ecological risk of TCC for surface water in China deserve more attention.

Key words: triclocarban, risk quotient, species sensitivity distributions (SSD), surface water

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