摘要
The acute toxicity of 2,2′,4,4′-tetrabromodiphenyl ether on Chlorella vulgaris, Dqohnia magna and Barchydanio rerio was analyzed using semi-static water contacting acute toxicity method. The results showed that the 96 h-EC50 of 2,2′,4,4′-tetrabromodiphenyl ether(BDE-47) on C. vulgaris was 3.97 μg/L, the 48 h-LC50 and 96 h-LC50 of BDE-47 on D. magna were 1.09 and 0.84 mg/L respectively, and the 96 h-LC50 of BDE-47 on B. rerio was higher than 56.2 mg/L. According to the grading standard of toxicity evaluation, BDE-47 had extremely high toxicity to C. vulgaris, high toxicity to D. magna, and low to medium toxicity to B. rerio. The toxicity of BDE-47 to C. vulgaris, D. magna and B. rerio followed the order of C. vulgaris>D. magna>B. rerio. For the water solubility of BDE-47 is extremely low(15 μg/L), it could not cause the acute poisoning death of D. magna and B. rerio.
The acute toxicity of 2,2′,4,4′-tetrabromodiphenyl ether on Chlorella vulgaris, Dqohnia magna and Barchydanio rerio was analyzed using semi-static water contacting acute toxicity method. The results showed that the 96 h-EC50 of 2,2′,4,4′-tetrabromodiphenyl ether（BDE-47） on C. vulgaris was 3.97 μg/L, the 48 h-LC50 and 96 h-LC50 of BDE-47 on D. magna were 1.09 and 0.84 mg/L respectively, and the 96 h-LC50 of BDE-47 on B. rerio was higher than 56.2 mg/L. According to the grading standard of toxicity evaluation, BDE-47 had extremely high toxicity to C. vulgaris, high toxicity to D. magna, and low to medium toxicity to B. rerio. The toxicity of BDE-47 to C. vulgaris, D. magna and B. rerio followed the order of C. vulgaris>D. magna>B. rerio. For the water solubility of BDE-47 is extremely low（15 μg/L）, it could not cause the acute poisoning death of D. magna and B. rerio.
基金
Supported by Central Public-interest Scientific Institution Basal Research Fund,Chinese Academy of Fishery Science(2017HY-ZD0208)
China Agricultural Research System-Freshwater Fish(CARS-46)
