[Measured and Predicted Aquatic Life Criteria and Risk Assessment of XXXX (VI) in Liaohe River].

@entity5022 @entity137 @entity3407 @entity6596
In this study, @entity137 data of aquatic species in Liaohe River for heavy metal @entity3407 (VI) was collected and selected. The aquatic life criteria for @entity6596 in Liaohe River was derived based on these @entity137 data. Moreover, water samples of 25 sites in Liaohe River were collected, and the concentrations of @entity6596 in these samples were analyzed. Finally, ecological risk assessment of @entity6596 in Liaohe River was performed. Moreover, interspecies correlation estimation method (ICE) established by US EPA was used to predict the acute @entity137 of species in Liaohe River, and aquatic life criteria based on predicted @entity137 data was derived. The results showed that: the measured CMC (criteria maximum concentration), measured CCC (criteria continuous concentration) and the predicted CMC were 17. 73, 12. 15 and 13. 97   g . @entity5022 , respectively. Therefore, the ICE method could be used to predict the aquatic life criteria, because the predicted criteria value was very similar to the measured criteria value. Analysis of @entity3407 (V) showed that the @entity6596 concentrations of the 25 sites in Liaohe River were all below Class I or Class II water quality standards (GB 3838-2002), and the water quality was in good condition. However, for the potential risk of @entity6596 exposure to the aquatic life of Liaohe River, the result of ecological risk assessment showed that @entity3407 (V) concentrations in 7 sites exceeded the CCC in July, and @entity6596 concentrations in 6 sites exceeded the CCC in December. Therefore, unacceptable effect on aquatic species caused by @entity6596 exposure might have occurred in some sites of Liaohe River.
