Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Abubuwan da ke faruwa a kan gizagizai na polar stratospheric (PSCs) suna taka muhimmiyar rawa wajen haɓaka lalacewar ozone. PSCs sun fi sauƙi a cikin matsanancin sanyi na Arctic da Antarctic stratosphere. Wannan shine dalilin da yasa ramuka na ozone suka fara, kuma sun fi zurfi, a kan Antarctica. Misalai na farko sun kasa yin la'akari da PSCs kuma sun yi hasashen raguwar duniya a hankali, wanda shine dalilin da ya sa ramin ozone na Antarctic ba zato ba tsammani ya zama abin mamaki ga masana kimiyya da yawa.Ya fi dacewa a yi magana game da raguwar ozone a tsakiyar latitudes maimakon ramuka. Gabaɗaya ginshiƙin ozone ya ragu ƙasa da ƙimar pre-1980 tsakanin 1980 da 1996 don tsakiyar latitudes. A tsakiyar latitudes na arewa, sai ya karu daga mafi ƙarancin darajar da kusan kashi biyu daga 1996 zuwa 2009 yayin da dokokin suka fara aiki kuma adadin chlorine a cikin stratosphere ya ragu. A tsakiyar latitudes na Kudancin Hemisphere, jimlar ozone ta kasance ba ta canzawa a wannan lokacin. Babu manyan abubuwa a cikin wurare masu zafi, galibi saboda mahaɗan da ke ƙunshe da halogen ba su da lokacin da za su rushe su saki ƙwayoyin chlorine da bromine a latitudes na wurare masu zafi.An nuna manyan fashewar dutsen mai fitad da wuta suna da tasirin gaske duk da cewa ba su daidaita ba, kamar yadda aka lura da fashewar Mt. Pinotubo a Philippines. Rashin ƙarancin ozone kuma ya bayyana yawancin raguwar da aka lura a cikin yanayin yanayin stratospheric da kuma yanayin tropospheric na sama. Tushen zafi na stratosphere shine shan UV radiation ta hanyar ozone, saboda haka rage ozone yana haifar da sanyaya. Wasu sanyaya na stratospheric kuma ana hasashen daga karuwar iskar gas kamar CO2 da CFCs kansu; duk da haka, sanyaya da ozone ya haifar da alama ya zama rinjaye. Tsinkaya na matakan ozone ya kasance da wuya, amma daidaito na tsinkayen samfurin na dabi'un da aka lura da su da kuma yarjejeniya tsakanin hanyoyin fasaha daban-daban sun karu a hankali. Hukumar Kula da Yanayi ta Duniya Bincike da Kulawa da Ozone na Duniya <unk> Rahoton lamba 44 ya fito da karfi a cikin yarjejeniyar Montreal, amma ya lura cewa UNEP...  Tambaya: Wane matsayi ne rahoton ya yi dangane da Yarjejeniyar Montreal?
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