[1]肖 娴,朱 艳,郭梦炜,等.杀螟丹和重金属对费氏弧菌的联合毒性效应[J].常州大学学报(自然科学版),2020,32(03):18-24.[doi:10.3969/j.issn.2095-0411.2020.03.003]
 XIAO Xian,ZHU Yan,GUO Mengwei,et al.Joint Toxicity of Cartap and Heavy Metals on Vibrio fischeri[J].Journal of Changzhou University(Natural Science Edition),2020,32(03):18-24.[doi:10.3969/j.issn.2095-0411.2020.03.003]
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杀螟丹和重金属对费氏弧菌的联合毒性效应()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第32卷
期数:
2020年03期
页码:
18-24
栏目:
环境科学与工程
出版日期:
2020-05-28

文章信息/Info

Title:
Joint Toxicity of Cartap and Heavy Metals on Vibrio fischeri
文章编号:
2095-0411(2020)03-0018-07
作者:
肖 娴朱 艳郭梦炜孙辰鹏赵 远
(常州大学 环境与安全工程学院,江苏 常州 213164)
Author(s):
XIAO Xian ZHU Yan GUO Mengwei SUN Chenpeng ZHAO Yuan
(School of Environmental & Safety Engineering, Changzhou University, Changzhou 213164, China)
关键词:
杀螟丹 重金属 费氏弧菌 联合毒性
Keywords:
cartap heavy metal Vibrio fischeri joint toxicity
分类号:
R 994.6
DOI:
10.3969/j.issn.2095-0411.2020.03.003
文献标志码:
A
摘要:
重金属与农药的复合污染在环境中普遍存在,然而复合污染对生物体产生的联合毒性方面的研究还不充分。以费氏弧菌为受试生物,研究杀螟丹、铅(Pb)和铬(Cr)3种污染物及其混合物对受试生物费氏弧菌15 min和30 min 下的急性毒性效应,计算杀螟丹、Pb和Cr的单一和混合污染的半数效应质量浓度ρ(EC50)。其中,杀螟丹-Pb和杀螟丹-Cr二元作用的等毒性单位比为 1:1,1:2,2:1,杀螟丹-Pb-Cr的三元作用的等毒性单位比为 1:1:1,1:1:2,1:2:1,2:1:1。杀螟丹、Pb和Cr单一作用下,暴露 15 min 的ρ(EC50)值分别为386.23,5.03,62.85 mg/L; 30 min下的ρ(EC50)值分别为205.48,4.98,50.58 mg/L。基于毒性单位法、相加指数法和混合毒性指数法对混合样本的毒性进行定性评价,结果表明:杀螟丹-Pb二元联合主要表现为部分相加作用,杀螟丹-Cr二元及杀螟丹-Pb-Cr三元联合主要表现为协同作用。
Abstract:
The combined pollution of heavy metals and pesticides is ubiquitous in the environment, however,researches on their joint toxicity on organisms are still insufficient. Toxicity tests were conducted in our study to evaluate acute toxicity effects of single and mixed samples contaminated by cartap, lead(Pb)and chromium(Cr)(cartap-Pb and cartap-Cr mixed at the ratios of 1:1, 1:2 and 2:1, cartap-Pb-Cr mixed at the ratios of 1:1:1, 1:1:2, 1:2:1 and 2:1:1)on Vibrio fischeri under 15 min and 30 min, respectively. The half maximal effective concentration(ρ(EC50))of the single and mixed contaminants were calculated. ρ(EC50)values of cartap, Pb and Cr for 15 min tests were 386.23, 5.03, 62.85 mg/L, and that for 30 min tests are 205.48, 4.98, 50.58 mg/L, respectively. Toxicity unit method, mixtures toxicity index method, and additive index method were used to evaluate the joint toxicity of cartap, Pb and Cr on Vibrio fischeri. The results indicated that the cartap-Pb binary system was mainly characterized by synergism, antagonism, and partial additive effects. The ternary combination of cartap-Cr binary and cartap-Pb-Cr were combined, and the main manifestations were synergistic effects.

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备注/Memo

备注/Memo:
收稿日期:2020-01-12。
基金项目:江苏省高等学校自然科学研究面上项目(19KJD610001); 常州大学引进人才项目(ZMF19020312)。
作者简介:肖娴(1992—),女,江苏盐城人,博士,讲师。E-mail: xiaoxian@cczu.edu.cn
引用本文:肖娴,朱艳,郭梦炜,等. 杀螟丹和重金属对费氏弧菌的联合毒性效应[J]. 常州大学学报(自然科学版),2020,32(3):18-24.
更新日期/Last Update: 2020-06-11