Iibhedi zokuthambisa isikhumba zenzelwe ukuvelisaukukhanya kwe-ultraviolet (UV)elifana nemitha yelanga, kodwa kwindawo elawulwayo. Ubukhali kunye nomlinganiselo wokukhanya kwe-UV kunokwahluka ngohlobo lwebhedi, kodwa ngokubanzi zikhupha umxube weI-UVAkwayeI-UVBimisebe.
1. Ubungakanani be-UV xa buthelekiswa neLanga
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Iibhedi ezininzi zokuthambisa isikhumba zorhwebo zinokuvelisa amanqanaba e-UVamandla aphindwe kathathu ukuya kathandathu kunelanga lasehlotyeni laseminikwiindawo ezithile.
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Oku kuthetha ukuba neseshoni emfutshane inokukubeka kwindawo enobungozi kakhulu kwimitha ye-UV.
2. Umlinganiselo we-UVA kunye ne-UVB
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I-UVA:Ngokwesiqhelo i-90–98% yemveliso, inoxanduva lokutshiswa kwesikhumba ngoko nangoko kodwa ikwanxulunyaniswa nokwaluphala kolusu kunye nomonakalo omkhulu we-DNA.
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I-UVB:Ngokwesiqhelo i-2–10% yemveliso, ibangela ukulibaziseka kokutshiswa kwelanga kwaye yeyona nto ibangela ukutshiswa lilanga.
3. Izinto ezichaphazela ukuphuma kwe-UV
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Uhlobo lweLamp kunye neWattage:Izibane ezixineneyo kakhulu xa kuthelekiswa nezibane ezixineneyo kancinci.
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Ubudala Bebhedi Nokugcinwa:Izibane ezindala zisenokukhupha i-UV encinci, kodwa kusafuneka zilumke.
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Ixesha leSeshini:Iiseshoni ezinde zilingana nokuvezwa okuphezulu kwe-UV.
4. Amanqaku ezeMpilo noKhuseleko
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Ukuvezwa kakhulu kukukhanya kwe-UV — nokuba kuvela elangeni okanye kwindawo yokuthambisa ilanga — kwandisa umngciphekoumhlaza wolusu, ukwaluphala ngaphambi kwexesha, kunye nomonakalo wamehlo.
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Soloko usebenzisaizibuko zokukhusela.
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Umlinganiselo wokuphindaphinda kunye nobude bexesha leeseshoni zokutshisa umbala.
Okukwintsusa:
Ukukhanya kwe-UV kwibhedi yokuthambisa ilanga kunokuba namandla kakhulu kunokukhanya kwelanga kwendalo, kwaye ubungakanani obuchanekileyo buxhomekeke kuyilo lwebhedi kunye nexesha lokusetyenziswa kwayo. Neeseshoni ezimfutshane zinokunika idosi ephezulu ye-UV, ngoko ke ukusetyenziswa okukhuselekileyo nokuphakathi kubalulekile.