Study on Biological Effect of Plasticizer
In order to describe the influence of long-term and low dose exposure of plasticizer, the chronic toxicity of Dibutyl phthalate (DBP) to Daphnia magna was determined according to the residual concentration of DBP in the practical environment. The effect of DBP on survival, reproduction and growth was monitored. The parameters used to evaluate the environment effect on reproduction included the body length, moulting times, pregnancy times. The results showed that the low concentration of DBP had no significant (P < 0.05) impact on the somatotype of Daphnia magna. While the concentration of DBP was in the range of 2–20 μg/L, the ecdysis and pregnancy of the exposed organisms were promoted. And the stimulating effect was enhanced with increasing concentration of DBP.
KeywordsPlasticizer Dibutyl phthalate Daphnia magna
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