生态与农村环境学报2018，Vol.34Issue(1)：81-86,6.DOI:10.11934/j.issn.1673-4831.2018.01.010
壬基酚聚氧乙烯醚对大型溞的急性和慢性毒性效应
Acute and Chronic Toxicity of Nonylphenol Ethoxylates to Daphnia magna
摘要
Abstract
An experiment was carried out to explore acute and chronic toxicity of nonylphenol ethoxylates ( NP40 EO) to Daphnia magna and the chronic effects of the substance on fatality, growth and reproduction of Daphnia magna after 21 days of exposure, in an attempt to establish a dose-response relationship between the two and search for sensitive biological indices. Results of the acute toxicity test show that the 48 h-EC50 of NP40EO to Daphnia magna was 14. 23 mg·L-1. Re-sults of the chronic toxicity test show that NP40EO had significant effects on the average number of molting, the first repro-duction time, the total number of eggs per female, the number of brood per female and the average body length of survivors of the Daphnia magna. Among them, the exposure concentration of 0. 445 mg·L-1 could significantly reduce the number of molting, the average number of brood, the total number of eggs per female, and the average body length. Therefore, it could be concluded that after overall consideration of all the indices that the lowest observed effect concentration ( LOEC) of NP40EO for Daphnia magna is 0. 445 mg·L-1, and the no observed effect concentration (NOEC) is 0. 11 mg·L-1. In addition, the study has also found that the first molting time and the first reproduction time of Daphnia magna were signifi-cantly affected by NP40EO 1. 78 mg·L-1 in exposure concentration. All the findings demonstrate that NP40EO has some inhibitory effect on growth and reproduction of Daphnia magna.关键词
壬基酚聚氧乙烯醚/大型溞/急性毒性/慢性毒性/繁殖Key words
nonylphenol ethoxylates/Daphnia magna/acute toxicity/chronic toxicity/breeding分类
资源环境引用本文复制引用
蔡小宇,姜锦林,单正军,卜元卿,续卫利..壬基酚聚氧乙烯醚对大型溞的急性和慢性毒性效应[J].生态与农村环境学报,2018,34(1):81-86,6.基金项目
环保公益性行业科研专项(201309026) （201309026）
