Lalacewar lemar sararin samaniya

lemar sararin samaniya

Daga cikin matakan sararin samaniyar da muke dasu akwai wanda yake kiyaye mu daga mummunan tasirin hasken rana. Labari ne game da lemar sararin samaniya Ozone layer shine wanda aka samo shi a cikin stratosphere kuma an hada shi da yafi na ozone. Matsalar ita ce tana haifar da lemar sararin samaniya sakamakon ayyukan masana'antu na dan adam. Godiya ga yarjejeniyoyi daban-daban ramin da aka kirkira a cikin wannan layin yana raguwa. Koyaya, har yanzu akwai sauran aiki a gaba.

A cikin wannan labarin zamu fada muku yadda lalata ozone layer ya shafi duniyarmu da kuma abin da yakamata ayi don kula da ita.

Lalacewar lemar sararin samaniya

mummunan lalacewar lemar sararin samaniya

Filin tsaro ne wanda yake a cikin sararin samaniya. Yana aiki ne azaman matattarar iska mai amfani da hasken rana mai cutarwa ga rayayyun halittu. Kodayake wannan shimfidar tana da matukar mahimmanci don rayuwa, amma mu mutane har yanzu muna da niyyar lalata shi. Chlorofluorocarbons sunadarai ne waɗanda ke lalata ozone a cikin sashin sararin samaniya ta hanyoyi daban-daban. Gas ne wanda ya kunshi fluorine, chlorine da carbon. Lokacin da wannan sinadarin ya isa mashigar ruwa, zai fara daukar hoto tare da hasken rana daga hasken rana. Wannan yana haifar da kwayoyi zuwa lalacewa kuma suna buƙatar atamfofin chlorine. Chlorine yana aiki tare da ozone a cikin stratosphere, yana haifar da atomatik masu oxygen don ƙirƙira da kuma fasa ozone.

Ana samun lemar sararin samaniya a ciki stratosphere kuma yana tsakanin tsayin kilomita 15 zuwa 30. Wannan rukunin ya kunshi kwayoyin ozone, wadanda kuma suke dauke da kwayoyin oxygen guda 3. Aikin wannan Layer shine ya sha ruwan ultraviolet B kuma yayi aiki azaman tacewa don rage lalacewa.

Lalacewar lemar ozone na faruwa ne lokacin da wani sinadari ya faru wanda ke haifar da lalata ozone na ozho. Ruwan hasken rana da ya afku ana tace shi ta hanyar ozone layer, inda kwayoyin ozone suke shiga ta iska ta ultraviolet B. Lokacin da wannan ya faru, kwayoyin ozone sun shiga cikin iskar oxygen da nitrogen dioxide. Wannan tsari ana kiran sa photolysis. Yana nufin cewa kwayoyin sun lalace karkashin aikin haske.

Babban dalilin lalacewar saurin ozone shine watsi da chlorofluorocarbons. Kodayake mun riga mun ambata cewa hasken rana yana lalata ozone, yana yin hakan a daidaitacciyar hanya. Wato, adadin ozone wanda ya lalace ta hanyar daukar hoto yayi daidai ko kasa da adadin ozone wanda za'a iya hada shi ta hanyar haduwar kwayoyin halitta.

Mahimmancin guje wa halakar ozone layer

Maidowa daga ramin lemar sararin samaniya

Tsarin ozone ya fadada ko'ina a duniya. Ba kauri ɗaya yake ba a duk yankuna na Duniya, amma natsuwarsa tana da canzawa. Kwayar ozone ta kasance ta atomatik guda uku kuma ana samunta a cikin sifa mai zafin gaske a cikin sifofin sararin samaniya da kuma saman. Idan muka samo ozone, wato, a matakin saman duniya, yana gurɓata kuma yana cutar da lafiya.

Duk da haka, ozone da aka samo a cikin stratosphere yana da manufar kare kanmu daga haskakawar hasken rana. Wadannan haskoki suna da illa ga fata, ciyayi da kuma fauna na duniya. Idan babu ozone layer, da ba za mu iya fita waje ba tare da kona kanmu ba kuma cutar kansa ta fata za ta fi ko'ina a duniya.

Launin ozone yana haifar da yawancin hasken rana wanda ya zo daga sararin samaniya don dawowa kuma baya zuwa saman. Ta wannan hanyar ana kiyaye mu daga waɗancan haskoki masu lahani.

Idan lemar ozone tayi rauni har ta kai ga barin hasken UVA mai cutarwa, zai iya shafar kwayoyi masu mahimmanci ga rayuwa kamar kwayoyin DNA.

A cikin mutane, yawan ɗaukar hotuna zuwa irin wannan ci gaba mai haifar da cutar na haifar da illa ga lafiyar jiki, kamar su bayyanar cutar kansa. A cikin ciyayi kuma akwai raguwa cikin ƙimar hotuna, haɓakar ƙasa da samarwa. Ba tare da hotunan hoto ba, tsire-tsire ba za su iya rayuwa ko samar da iskar oxygen ba, suna shan CO2 a cikin aikin.

Aƙarshe, yanayin halittun ruwa har ila yau ya shafi farkon mita 5 na zurfin (wanda shine yankin da akwai mafi yawan abin da ke faruwa na hasken rana). A cikin wadannan yankuna na tekun, yawan hotunan da akeyi na phytoplankton yana raguwa, wani abu mai mahimmanci tunda shine asalin sarkar abinci.

Yadda za'a kula dashi

Yadda ake kula da ozone layer tare da gida mai ɗorewa

Don kare tsarin ozone, dole ne gwamnatoci a duk duniya su tsara matakan rage hayaƙin waɗannan iskar gas mai illa. In ba haka ba, tsire-tsire da yawa na iya shan wahala daga zafin rana, ciwon daji na fata zai ƙaru, kuma wasu matsalolin mahalli masu tsanani za su faru.

A matakin mutum, a matsayin ku na 'yan ƙasa, abin da zaku iya yi shine siyan samfuran aerosol waɗanda ba su ƙunshe ko kuma an yi su da ƙwayoyin da ke lalata lemar ozone. Daga cikin gas mafi barnan wannan kwayar akwai:

  • CFCs (chlorofluorocarbons). Su ne mafi lalacewa kuma ana sake su a cikin yanayin aerosol. Suna da rayuwa mai tsayi sosai a cikin yanayi kuma, saboda haka, waɗanda aka saki a tsakiyar karni na XNUMX har yanzu suna haifar da lalacewa.
  • Halogenated hydrocarbon. Ana samun wannan samfurin a cikin abubuwan kashe gobara. Mafi kyawu shine tabbatar da cewa wutar da muke siya bata da wannan gas din.
  • Methyl bromide. Magungunan kashe kwari ne da ake amfani dashi a gonakin itace. Lokacin da aka sake shi cikin mahalli yana lalata ozone. Abinda yafi dacewa shine ba siyen kayan daki da aka yi da waɗannan katako ba.
  • Kada ku sayi maganin feshi wanda yake dauke da CFCs.
  • Kada ayi amfani da abubuwan kashe wuta na halon.
  • Sayi kayan inshora waɗanda basu da CFC ko dai kamar yadda agglomerated abin toshewa.
  • Idan wani kyakkyawan kulawar kwandishan, Zamu hana barbashin CFC isa ga ozone layer.
  • Idan firij din bai huce ba kamar yadda ya kamata, na iya zubo CFC. Hakanan yayi daidai da kwandishan abin hawa.
  • Yi amfani da motar kaɗan-kaɗan kuma yi amfani da jigilar jama'a ko keke.
  • Sayi fitila mai ceton makamashi.
  • Koyaushe nemi gajeriyar hanya don tafiya cikin mota idan babu wani zaɓi fiye da ɗauka. Ta wannan hanyar kuma za mu bincika ta aljihu.
  • Yi amfani da kwandishan da dumama kadan-kadan.

Ina fatan cewa tare da wannan bayanin zaku iya koyo game da lalata labulen ozone da mahimmancinsa.


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