一、前言由于CFC制冷剂的大量使用会导致大气同温层中臭氧的衰减,破坏生态环境,已起了人类的关注。1987年9月通过的《关于消耗臭氧层物质的蒙特利尔议定书》,确定了受控物质及控制过程。1990年6月在英国伦敦召开“蒙特利尔议定书缔约国第二次会议”,对《蒙特利尔议定书》又进行了修改,扩大受控物质范围,加快了控制过程。我国也于1991年6月1日向《蒙特利尔议定书》缔约国第三次会议递交了加入修改后的《蒙特利尔议定书》的文件。 I. Preface As the heavy use of CFC refrigerants will lead to the attenuation of atmospheric ozone in the stratosphere and the destruction of the ecological environment, it has become a human concern. The Montreal Protocol on Substances that Deplete the Ozone Layer adopted in September 1987 identified the controlled substances and the process of control. In June 1990, the “Second Meeting of the Parties to the Montreal Protocol” was held in London, England, and the Montreal Protocol was further amended to expand the scope of controlled substances and speed up the control process. My country also submitted documents to the third meeting of the Parties to the Montreal Protocol to the amended Montreal Protocol on June 1, 1991.