zzzzzzzzzzz32200122141UNDP3220001231UNDPMPUNDP420427403675ODS525261118ODSODSODSODSODS200151418––––zzzzzzzPMOPMOPMO230ODSzODS1993199519971999zODS1997,1999CFCszODS1993ODSzzODSzODSzzzzzzODSzzzzzzzzzzz1JosephBlack1772DanielRutherfordCarlScheeleJosephPristley1781HenryCavendish79.16%20.84%1894LordRayleighRamsay1ppt1839ChristianSchonbein1864JacquesL.Soret1878AlfredCornu310WalterN.Harteley1902Leon-PhilippeTeisserenddeBort81021970CrutzenHaroldJohnstonNO+O3→NO2+O2CFC-12CFC-13CFCs1972LovestockCFCpptCFC-12MarioMolinaG.SherwoodRowlandCFCClClONONO2CFC4030-40%CFCCFCDavidHofmannSusanSolomonJamesAnderson1222ClOOClOSolomonRowlandHClClONO2Cl2,CL2Cl1030%50-70%CFC1996CFC