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Igipimo cya UV index
UV index ipima ubukana bw'imirasire y'izuba itwika, ku gipimo gitangirira kuri 0 kandi kidafite hejuru ntarengwa. Iyo umubare uri hejuru, uruhu n'amaso bidafite kurinda byangirika vuba. Igipimo n'amabara ni bimwe ku isi yose (World Health Organization); muri USA, ibiteganyijwe bitangwa na EPA na National Weather Service.
| Igipimo cya UV | Urwego |
|---|---|
| 0–2 | Bike Akaga gake ka UV ku bantu basanzwe.ambaragurika ku minsi y'urumuri. Niba uruhu rwawe rukongora vuba, wipfunyike ukoresheje kremu ifite SPF 30+ irenga. Umucanga, amazi n'urubura byerekana urumuri rwa UV bikongera ingaruka zawo. |
| 3–5 | Hagati Akaga hagati ka UV iyo utipfunyitse. Guma mu gicucu hafi ya saa sita, igihe izuba riri hejuru.ambaragurika, umwambaro w'umutwe, indorerwamo zibuza UV, ukoreshe kremu ifite SPF 30+ buri masaha 2, n'igihe cy'ibicu, nyuma yo koga cyangwa kunyuka. |
| 6–7 | Byinshi Akaga kanini ka UV: uruhu n'amaso bikenera kurindwa. Gabanya igihe uri mu zuba hagati ya saa sita, shaka igicucu, wambaragurike, wambire umwambaro w'umutwe, indorerwamo zibuza UV, ukoreshe kremu ifite SPF 30+, uyisubiraho buri masaha 2. |
| 8–10 | Byinshi cyane Akaga kanini cyane: uruhu n'amaso bidafite kurinda bishobora kwangirika bikongora vuba. Gabanya igihe uri mu zuba hagati ya saa sita, shaka igicucu, wipfunyike n'imyambaro, umwambaro w'umutwe, indorerwamo zibuza UV, ukoreshe kremu ifite SPF 30+, uyisubiraho buri masaha 2. |
| 11+ | By'akataraboneka Akaga k'akataraboneka: uruhu n'amaso bidafite kurinda bishobora kongora mu minota mike. Gerageza kwirinda izuba hagati ya saa sita, guma mu gicucu, ukoreshe uburyo bwose bwo kurinda: imyambaro, umwambaro w'umutwe, indorerwamo zibuza UV, kremu ifite SPF 30+, uyisubiraho buri masaha 2. |
Igihe cyo kwirinda
Inzego z'ubuzima zitanga inama yo kwirinda iyo urugero rwa UV rugeze kuri 3 cyangwa hejuru. Amapaji yacu y'imiji yerekana amasaha nyayo igihe ibiteganyijwe by'uyu munsi bigera kuri 3 muri buri mujyi.
Itegeko ry'igicucu: niba igicucu cyawe ari gito kurusha uburebure bwawe, UV y'izuba iri ku rwego rwo hejuru — irinde.
Ibihindura urugero rwa UV
Uburebure bw'izuba ni bwo bufite ingaruka nyinshi: UV iba ikomeye hagati ya saa sita, mu gihe cy'impeshyi, no hafi y'umurongo w'isi (equator). Ozone nke ituma UV nyinshi inyura. Ibicu bikunze kuyigabanya ariko bishobora kuyongera igihe gito ku mpande zabyo. Uburebure bw'ahantu bwongera hafi 10% kuri buri 1,000 m. Urubura rwerekana hafi 80% bya UV, umucanga n'ibishishwa by'inyanja hafi 15–25%, bityo ushobora gutwikirwa mu gicucu ku nkombe y'inyanja cyangwa ku musozi w'ubukonje.