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全氟辛烷磺酸(PFOA)对斜生栅藻的毒性效应研究

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摘要 为了分析全氟辛烷磺酸(PFOA)对淡水生态系统的危害,选择斜生栅藻为受试对象。首先设计了急性毒性试验,计算出PFOA对斜生栅藻的96h-EC50值为139.23 mg/L。然后将斜生栅藻在含有不同浓度PFOA的培养基中连续培养8天,测定叶绿素、抗氧化酶、丙二醛等指标的变化。结果显示,斜生栅藻的叶绿素含量在PFOA达到50mg/L剂量时开始表现出降低,抗氧化酶类的活性在PFOA达到50mg/L或100mg/L剂量时表现出降低,MDA含量在PFOA达到150mg/L剂量时开始表现为上升。研究结果显示PFOA在高浓度下会影响藻类的光合作用及多种代谢活动。
出处 《资源节约与环保》 2016年第6期293-294,共2页 Resources Economization & Environmental Protection
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