的环境毒理学.ppt

Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. Chatter 3 环境毒理学 Evaluadon onr. ith Aspose slides for NET 4o client P Evaluation only. Created with Aspose Slides for NET 4.0 Client Profile 171 Copyright 2004 -2017 Aspose Pty Ltd  Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. 威胁人类 羚易 存潜在的威胁 Dolwalpapd Evaluadon onr. ith Aspose slides for NET 4o client P Evaluation only. Created with Aspose Slides for NET 4.0 Client Profile 171 Copyright 2004 -2017 Aspose Pty Ltd  Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. 化学污染戚胁人粪生育能力 路易斯吉尔特整日想做的就是帮助搞清人们可以在 佛罗里达的阿波普卡湖中搖多少鳄鱼而又不破坏其种 群平衡,但经过几年小心翼翼的跋涉及机警地走近鳄 鱼,用套索捕捉这种大型爬行动物后,他渐渐地明白 了,鳄鱼还有比被捕杀做皮包更大的忧虑。雄性鳄鱼 的阴茎只有正常大小的1/4,它们的睾酮也低到了有 可能使它们不育的水平。此后不久,吉尔特遇到了 个研究人员,后者也曾在接触过类似于化学物质DDE (DDT分解时形成)的实验鼠上发现过类似现象。 Evaluation only. ith Aspose slides for NET 4o client P Evaluation only. Created with Aspose Slides for NET 4.0 Client Profile 171 Copyright 2004 -2017 Aspose Pty Ltd  Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 4.0 Client Profile 17.1. Copyright 2004-2017Aspose Pty Ltd. 化学污染戚胁人粪育能力 并非巧合的是,1980年曾有成干上万加仑含有 DDT的杀虫剂被倒入阿波普卡湖。将这几点联系起来 吉尔特说:“我想我们在这方面也有问题。”“我们” 的意思,他并非是指鳄鱼。因为人类就生活在一个同 样可使性扭曲的化学物质的海洋之中。佛罗里达大学 的研究人员最近在一个国会专题小组讨论会上说 “这间屋子里在座的每一个男人所产生的精子都只有 他们祖父辈的一半。” Evaluation only. ith Aspose slides for NET 4o client P Evaluation only. Created wit