Ungqimba lwe-ozone lukhombisa ukululama ngemuva kweminyaka engamashumi amathathu

imbobo yesendlalelo se-ozone

Ukuqapha isimo somgodi kusendlalelo se-ozone, ukuhlushwa kwe-ozone ku-stratosphere kukalwe iminyaka engamashumi amathathu ngesathelayithi. Ngemuva kwalesi sikhathi sokulinganisa, ekugcineni kutholakale izimpawu zokutholakala komhlaba ungqimba lwe-ozone, sibonga imizamo eyenziwe emhlabeni jikelele ukunqanda ukusetshenziswa kwezinto eziyichithayo.

Ingabe imiphumela emihle oyithole mayelana nobukhulu besendlalelo se-ozone?

Indima yesendlalelo se-ozone

ungqimba lwe-ozone

Isendlalelo se-ozone simane siyindawo ye-stratosphere lapho ukugxila kwale gesi kuphakeme kakhulu. Lo gesi usebenza njengesivikelo emisebeni yelanga eyi-ultraviolet eyingozi. Ngenxa yalokho, Asishisi isikhumba sethu ngokuzichaya elangeni, izitshalo zingaphila futhi zenze ifotosinthesize, njll.

Ngalesi sizathu, ukuthi ungqimba lwe-ozone lusesimweni esihle lubalulekile empilweni njengoba sazi ukuthi iplanethi kufanele ithuthuke. Ngokuthuthuka kwezobuchwepheshe, kukhishwa amagesi amakhulu aqeda ungqimba lwe-ozone, njenge-chlorofluorocarbon. Lawa magesi asabela ngezinhlayiya ze-ozone ku-stratosphere, aziqede. Ngenxa yabo kuye kwakhiwa imbobo edumile kusendlalelo lwe-ozone.

Imbobo kusendlalelo se-ozone akuyona imbobo ngokwayo, ngoba uma kunjalo, kungaba yingozi kakhulu emhlabeni, njengoba itholakala e-Antarctica futhi ingavumela ukuncibilika ngokushesha kweqhwa laleli zwekazi. Lo "mgodi" umane wehla ekugxileni kwalolu ungqimba oluzungeze i-Antarctica.

Lapho i-ozone eyingozi ingenisa imisebe ye-ultraviolet eyingozi evela elangeni, ukuvezwa kwale misebe kuyanda, kubangele umdlavuza wesikhumba, i-cataract kanye nokuphazamiseka kumasosha omzimba. Zithinta nezilwane, izitshalo, ngisho ne-phytoplankton encane.

Ukubuyiselwa kwe-ozone

ukuvuselelwa kongqimba lwe-ozone

I-ozone, etholakala ku-stratosphere, itholakala cishe ngamakhilomitha ayi-11-50 ngenhla komhlaba yaqala ukwehla ngeminyaka yama-70s yekhulu elidlule. Ukwehliswa okuphawuleka kakhulu kusukela lapho ungqimba lwe-ozone luphakathi kuka-4 no-8% eminyakeni eyishumi.

Ngenxa yezivumelwano zamazwe omhlaba ezinjengeMontreal Protocol, evimbela ukusetshenziswa nokuncishiswa kwezinto ezibhubhisa ungqimba lwe-ozone, ukuthambekela kokunciphisa kuye kwaphazamiseka.

Iziphuphutheki eziqhubeka nokuqapha nokuqapha ukuhlushwa kwe-ozone kuzo zonke izindawo zomhlaba zikwazile ukuthola izimpawu zokuqala zokululama. AmaSatellites anikela ngezilinganiso ezanele, yize umkhawulo wawo wesikhashana uwavimba ekwenzeni ama-panorama amaningi wokuhlushwa kwe-ozone. Ososayensi besimo sezulu balinganisela ukuthi ukufundwa kwe-satellite ozone kuzothatha iminyaka engama-30 noma ngaphezulu futhi ayadingeka ukuze akwazi ukuhlaziya ukuthambekela kokugxila kwe-ozone ngokunemba okukhulu.

Ngokuya ngesizini yonyaka esikuwo nomsebenzi welanga, ukuhlushwa kwe-ozone akuhlali kuzinzile unyaka wonke. Ngakho-ke, kubalulekile ukuhlaziya ukuthambekela kokuhlushwa eminyakeni edlule hhayi ukugxila okuthile. Ngalesi sizathu, kuyadingeka izinyathelo emashumini eminyaka ukufakazela ukuthi ngabe abantu babangela ukuthi imbobo kusendlalelo lwe-ozone iqale ukuphola.

Ukuphendula le nkinga, ososayensi abavela ku- I-ESA Initiative Change Initiative Zivumelanisa izilinganiso ezivela kumasathelayithi ahlukahlukene ukuthola umbono wesikhathi eside wokuhlukahluka kwe-ozone.

 “Ngokuhlanganisa imininingwane evela ku-Climate Change Initiative nedatha evela ku-NASA, sibona ngokusobala izitayela ezingezinhle ku-ozone yomkhathi ongaphezulu ngaphambi kuka-1997 nemikhuba emihle ngemuva kwalolo suku. Amathrendi e-stratosphere ephezulu ngaphesheya kwezindawo ezishisayo abalulekile ngokwezibalo futhi aqala ukuvuselelwa kwe-ozone, "usho kanje. UViktoria Sofieva, Senior Research Scientist eFinland Meteorological Institute.

Ngenxa yalokhu, namuhla singazi ukuthambekela kongqimba lwe-ozone.

 


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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.