天然水体对有机氯污染物藻类毒性的影响  

Effects of Natural Water on Algae Toxicity of Organochlorine Pollutants

作　　者：屠兴坤 张帅[1,2] 唐世坤 方润 李子寒 刘安蓉 TU Xing-kun;ZHANG Shuai;TANG Shi-kun(College of Geography and Environmental Science,Guizhou Normal University,Guiyang,Guizhou 550025;State Key Laboratory Breeding Base for Karst Mountain Eco-environment of Guizhou Province,Guiyang,Guizhou 550025)

机构地区：[1]贵州师范大学地理与环境科学学院,贵州贵阳550025 [2]贵州省喀斯特山地生态环境国家重点实验室培育基地,贵州贵阳550025

出　　处：《安徽农业科学》2022年第12期60-62,136,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(41807336);贵州省科技计划项目(黔科合基础〔2020〕Y189,黔科合LH字〔2017〕7345号,黔科合平台人才〔2018〕576919);贵州师范大学2016年博士科研启动项目“NOM对TiO 2纳米颗粒与有机氯污染物藻类复合毒性的影响”;贵州师范大学2019年度大学生科研训练计划项目(DK2019Z008);贵州省世界一流学科建设计划项目(黔教科研发〔2019〕125号)。

摘　　要：用去离子水和天然水体分别配制不同浓度的阿特拉津和PCB-77,研究2种有机氯污染物对蛋白核小球藻的毒性效应。通过观察藻的生长,计算出不同水体条件下有机氯污染物对小球藻生长抑制的96 h-IC_(50)。结果表明,不同水体条件下阿特拉津和PCB-77对蛋白核小球藻的生长抑制作用存在差异,观山湖水体显著减小了阿特拉津和PCB-77的96 h-IC_(50)值;天河潭水体显著减小了阿特拉津的96 h-IC_(50)值,增大了PCB-77的96 h-IC_(50)值,表明天然水体会影响有机氯污染物对藻类的毒性效应。Different concentrations of atrazine and PCB-77 were prepared with deionized water and natural water respectively,and the toxic effects of the two organochlorine pollutants on Chlorella pyrenoidosa were studied.By observing the growth of algae,the 96 h-IC_(50) of the inhibition of organic chlorine pollutants on algae under different water conditions was calculated.The results showed that the inhibitory effects of atrazine and PCB-77 on algae were different under different water conditions,the water body of Guanshan Lake significantly decreased the 96 h-IC_(50) values of atrazine and PCB-77;the Tianhetan water body significantly decreased the 96 h-IC_(50) value of atrazine and increased the 96 h-IC_(50) value of PCB-77,indicating that natural water would affect the toxic effects of organochlorine pollutants on algae.

关 键 词：天然水体 有机氯污染物 毒性影响 藻类 阿特拉津 PCB-77 

分 类 号：X171.5[环境科学与工程—环境科学]