DDT(双氯苯基三氯乙烷)是1874年首先由一位德国化学家合成的,但它具有的杀虫剂的特性,直到1939年才被发现。DDT 随之被用作杀虫灭蚊、消除田间虫害的重要杀虫剂。瑞士的保罗·穆勒因发现这种用性而获得诺贝尔奖金。首先系统地公开批评 DDT 危害性的,是研究鱼类和野生资源的海洋生物学家莱切尔·卡逊(Rachel Carson)。她的关于 DDT 等农药危害生态环境的书《寂静的春天》于1962年在美国问世时,受到了相关的生产与经济部门的猛烈抨击,有些财团还花钱唆使或资助没有良知的学人和议员、官员们时她大肆攻击。一个政府官员说:“她是一个老处女,干嘛要担忧那些遗传学的事。”《时代周刊》指责她使用煽情的文字,甚至连以捍卫人民健康为主旨的美国医学学会也站在化学工业一边。然而,《寂静的春天》像黑暗中的一声呐喊,唤醒了广大民众,也得到相关学科中一切有良知的科学家的支持。由于民众压力日增,1963年美国 DDT was first synthesized by a German chemist in 1874, but its pest-killing properties were not discovered until 1939. DDT is subsequently used as an insecticide to kill mosquitoes and eliminate important pest insecticides in the field. Paul Muller of Switzerland won the Nobel Prize for discovering this usability. First and foremost, a systematic and open critique of the dangers of DDT is marine biologist Rachel Carson, who studies fish and wildlife resources. Her book, Silent Spring, on DDT and other pesticides endangering the ecological environment was severely criticized by the relevant production and economic departments in the United States in 1962. Some consortia also spent money on instigating or subsidizing scholars without conscience and She attacked a lot of lawmakers, officials. A government official said: “She is an old virgin, why do I have to worry about those genetics.” “Time magazine accused her of using sensationalized scripts and even the American Academy of Medical Sciences, which is based on defending the health of the people, On the chemical industry side. However, ”Silent Spring" shouted like a cry in the dark, awakened the general public and supported by all conscientious scientists in relevant disciplines. Due to growing public pressure, the United States in 1963