Haeba u tloaelane leLetšoao la UVHa e sebelisoa ho bolela esale pele boemo ba leholimo, ua tseba hore e lekanya hore na mahlaseli a letsatsi a ultraviolet a matla hakae — e u thusa ho lekanya hore na u ka chesoa ke letsatsi kapa ua chesoa kapele hakae.
Empa ha ho tluoa tabeng ealibethe tsa ho tantša letlalo, index ea UV e sebetsa ka tsela e fapaneng hanyane.
A re hlahlobeng hore na tekanyo ea UV libetheng tsa ho fifatsa letlalo e bolela eng, hore na e matla hakae ha e bapisoa le khanya ea letsatsi ea tlhaho, le hore na seo se bolela'ng letlalong la hao.
1. Ho utloisisa Index ea UV
TheTekanyetso ea UV (UVI)ke sekala se lekanyang matla a mahlaseli a ultraviolet a fihlang letlalong la hao.
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A UVI ea 1–2ho bolela ho pepesehela tlase (kotsi e fokolang)
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3–5e itekanetseng
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6–7e phahame
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8–10e phahame haholo
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11+e feteletse
Khanya ea letsatsi ea kantle hangata e tloha ho0 ho isa ho 12, ho latela nako ea letsatsi le sebaka.
2. Tekanyo ea UV Libetheng tsa ho Letlalo
Libethe tsa ho lema letlalo kee matla haholoho feta khanya ea letsatsi ea tlhaho — ke ka lebaka leo lithuto li bolokoang li le khutšoanyane.
Libethe tse ngata tsa sejoale-joale tsa ho lahla letlalo li ntša maemo a UV a lekanang leTekanyo ea UV pakeng tsa 10 le 15, 'me mehlaleng e meng ea khatello e phahameng, e ka ba ea fihlaho fihlela ho 20 kapa ho feta.
Seo se bolelaMetsotso e 10 betheng ea ho tantšae ka pepesetsa letlalo la hao mahlaseli a UV a tšoanang lehora kapa ho feta motšehare oa letsatsi la lehlabula.
3. Hobaneng Matla a UV a le Holimo Hakaale
Tšebeliso ea libethe tsa ho fafatsa letlalomabone a UV a laoloangtse hlahisang motswako o itseng wa:
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Mahlasedi a UVA (90–95%)– e ikarabella bakeng sa ho fetoha ha mmala hang-hang le ho fifala ha letlalo ka ho teba
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Mahlasedi a UVB (5–10%)- ho matlafatsa tlhahiso ea melanin le 'mala oa nako e telele
Tekanyo ena e etselitsoe ho thusa basebelisi ho fifala ha letsatsi kapele, empa hape e eketsa monyetla oaho felloa ke metsi letlalong, ho teneha, kapa ho tsofala pele ho nakohaeba e sebelisoa khafetsa haholo.
4. Nako e Sireletsehileng ea ho Letlalo la Letlalo e Thehiloe ho Index ea UV
Kaha matla a UV a phahame, nako ea ho pepesehela mahlaseli a kotsi e lokela ho lekanyetsoa kamehla.
| Letšoao la UV Betheng | Boemo ba Kotsi | Tlhahiso e Khothaletsoang (Ba qalang) |
|---|---|---|
| 10–12 | Holimo Haholo | Metsotso e 5–7 |
| 13–15 | Ho feteletseng | Metsotso e 3–5 |
| 16–20+ | E matla | Metsotso e 2–4 (boholo) |
Kamehla latela tataiso ea setsebi ea salon ea hau kapalikhothaletso tsa moetsibakeng sa mohlala oa hau o ikhethileng oa bethe ea ho tantša.
5. Ho Sireletsa Letlalo la Hao Nakong ea ho Hlaseloa ke Mahlaseli a Leseli a Mafubelu
Ho etsa hore letlalo le be lerootho ka mokhoa o sireletsehileng le o sebetsang, hopola malebela ana a bohlokoa:
Kamehla aparaTšireletso ea mahlo e amohetsoeng ke FDA(ligalase tsa ho tjhesa letlalo)
Sebelisasetlolo sa ho tantša letlalo kapa se potlakisang letlalo se khothaletsoang salonho fokotsa ho omella
Boloka linakoe arohane bonyane lihora tse 24-48
Etsa koposetlolo se nolofatsang mongobo or lotion ea kamora ho soothoa ke letsatsikamora thuto ho notlela metsi
Qoba ho fifala ha letlalo haeba letlalo la hao le leho chesoa ke letsatsi kapa ho phunya
6. Leseli le Lefubelu khahlanong le Leseli la UV
Haeba o batla melemo eaho nchafatsa letlalontle le ho pepesehela mahlaseli a kotsi a UV, nahana kalibethe tsa ho fifatsa letlalo ka mabone a mafubelu.
Ba sebelisamaqhubu a maqhubu a seng a UV (630–660 nm)tse thusang ho ntlafatsatlhahiso ea collagen, molumo oa letlalo le ho tenyetseha ha lona, ho fana kakhanya e sireletsehileng, e thehiloeng leselingntle le likotsi tsa ho fifala ha letlalo.
Mekhoa e meng ea sejoale-joale ea motsoako o kopaneng, joalo kaLeseli le lefubelu la MERICAN + libethe tsa ho fifatsa letlalo ka mahlaseli a kotsi a UV, e o dumella ho etsa hore kopano ya hao e be e leka-lekanengbotle le polokeho— ho kopanya ntshetsopele ya mmala wa tlhaho le tlhokomelo e bonolo ya letlalo.
Mehopolo ea ho Qetela
TheLetšoao la UV libetheng tsa ho fifatsa letlalohangata kee phahame haholo ho feta letsatsi, ke ka lebaka leo mananeo a leng makgutshwane mme a behwa ka nako e loketseng.
Ka ho utloisisa matla a mahlaseli a kotsi a UV, ho latela meeli ea ho pepesehela mahlaseli a kotsi, le ho sebelisa tlhokomelo ea letlalo e sireletsang, u ka finyella 'mala o motle, o lekanang le o lefifi ka mokhoa o sireletsehileng.
Bakeng sa phihlelo e tsoetseng pele, e loketseng letlalo, khethaTheknoloji ea ho fifatsa mabone a mafubelu ea MERICAN— e etselitsoe ho ntlafatsa khanya ea hao ha ka nako e tšoanang e sireletsa bophelo bo botle ba letlalo la hao.