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Ying Yong Sheng Tai Xue Bao. 2013 Aug;24(8):2319-24.

[Acute toxicity of different type pesticide surfactants to Daphnia magna].

[Article in Chinese]

Author information

1
Research Center of Pesticide Environmental Toxicology/Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai' an 271018, Shandong, China. lixiuhuan777@163.com
2
Research Center of Pesticide Environmental Toxicology/Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai' an 271018, Shandong, China.

Abstract

By using the standard test methods in Experimental Guideline for Environmental Safety Evaluation of Chemical Pesticide to aquatic organisms, a comparative study was conducted on the acute toxicity of 39 nonionic, 6 anionic, and 3 cationic surfactants to Daphnia magna. The acute toxicity of three cationic surfactants 1427, 1227 and C8-10 to D. magna belonged to virulent level, and the toxicity of 1427 was the highest, with the EC50 value being 0.97 x 10(-2) mg x L(-1). The acute toxicity of nonionic surfactants polyoxyethylene ether castor oil EL, Tween, and Span emulsifiers belonged to low level, but the toxicity of alkylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether surfactants was relatively high, of which, AEO-7 and AEO-5 displayed high toxicity, with the EC50 value being 0.82 and 0.97 mg x L(-1), respectively. In these surfactants, the more liposolubility, the higher the toxicity was. Most of the anionic surfactants were medium in toxicity, but the acute toxicity of NNO belonged to high toxicity, with the EC50 value being 0.17 mg x L(-1).

PMID:
24380354
[Indexed for MEDLINE]

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