Imibhede yokushiswa kwesikhumba yenzelwe ukukhiqizaukukhanya kwe-ultraviolet (UV)elingisa imisebe yelanga, kodwa endaweni elawulwayo. Ubukhulu kanye nesilinganiso sokukhanya kwe-UV kungahluka ngohlobo lombhede, kodwa ngokuvamile kukhipha ingxube yeI-UVAfuthiI-UVBimisebe.
1. Amandla e-UV Uma Eqhathaniswa Nelanga
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Imibhede eminingi yokushiswa kwesikhumba yezentengiselwano ingakhiqiza amazinga e-UVkuze kube namandla aphindwe kathathu kuya kasithupha kunelanga lasehlobo laseminiezindaweni ezithile.
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Lokhu kusho ukuthi ngisho neseshini emfushane ingakubeka emisebeni ye-UV ephezulu.
2. Isilinganiso se-UVA ne-UVB
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I-UVA:Ngokuvamile u-90–98% womkhiqizo, obangela ukushiswa kwesikhumba ngokushesha kodwa futhi uhlotshaniswa nokuguga kwesikhumba kanye nomonakalo omkhulu we-DNA.
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I-UVB:Ngokuvamile u-2–10% womkhiqizo, ubangela ukushiswa kwelanga okulibazisekile futhi yimbangela eyinhloko yokushiswa yilanga.
3. Izici Ezithinta Ukukhishwa Kwe-UV
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Uhlobo Lwesibani Nokushiswa Kwamandla:Izibani ezinomfutho ophezulu uma kuqhathaniswa nezibani ezinomfutho ophansi.
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Ubudala Bokulala Nokunakekelwa:Izibani ezindala zingase zikhiphe i-UV encane, kodwa kusadingeka ziqaphele.
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Isikhathi Seseshini:Izikhathi ezinde zilingana nokuvezwa okuphezulu kwe-UV okuqongelelekayo.
4. Amanothi Ezempilo Nokuphepha
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Ukuchayeka kakhulu ekukhanyeni kwe-UV — kungaba elangeni noma elangeni — kwandisa ingozi yokubaumdlavuza wesikhumba, ukuguga ngaphambi kwesikhathi, kanye nokulimala kwamehlo.
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Sebenzisa njaloizibuko zokuzivikela.
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Nciphisa imvamisa kanye nobude besikhathi seseshini yokushiswa kwesikhumba.
Iphuzu Eliyinhloko:
Ukukhanya kwe-UV embhedeni wokushiswa kwesikhumba kungaba namandla kakhulu kunokukhanya kwelanga kwemvelo, futhi inani eliqondile lincike ekwakhiweni kombhede kanye nesikhathi sokusetshenziswa. Ngisho nezikhathi ezimfushane zingaletha umthamo omkhulu we-UV, ngakho-ke ukusetshenziswa okuphephile nokulinganiselwe kubalulekile.