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Urugero rwa UV index
UV index ipima ubukana bw'imirasire y'izuba itwika uruhu, ku rugero dutangirira kuri 0 kandi rudafite hejuru ntarengwa. Iyo umubare uri hejuru, uruhu n'amaso bidafite kurinda byangirika vuba. Urugero n'amabara ni bimwe ku isi yose (World Health Organization); muri USA, igenzura ritangwa na EPA na National Weather Service.
| Ekisobanirwe ky'UV | Ekisinga |
|---|---|
| 0–2 | Hasi Akaga gake ka UV ku muntu usanzwe.ambarwa indorerwamo ku munsi w'urumuri. Niba uruhu rwawe rukongera vuba, wipfunye ukoresha SPF 30+. Umucanga, amazi n'urubura byongera urumuri. |
| 3–5 | Hagati Akaga hagati ku ruhu rutakingiwe. Guma mu gicucu hafi ya saa sita, igihe izuba riri hejuru.ambarwa imyambaro irinda, ingofero nini n'indorerwamo zibuza UV, ukoresha SPF 30+ buri masaha 2, nubwo haba ibicu, nyuma yo koga cyangwa gusohora umwuka. |
| 6–7 | Hejuru Akaga hejuru ku ruhu rutakingiwe: uruhu n'amaso bikenera kurindwa. Gabanya igihe mu zuba hagati y'umunsi, shaka igicucu, ambarwa imyambaro irinda, ingofero nini, indorerwamo zibuza UV na SPF 30+, bisubirwamo buri masaha 2. |
| 8–10 | Hejuru cyane Akaga hejuru cyane: uruhu n'amaso bitakingiwe bishobora kwangirika vuba. Gabanya igihe mu zuba hagati y'umunsi, shaka igicucu, wipfunye imyambaro, ingofero nini, indorerwamo zibuza UV na SPF 30+, bisubirwamo buri masaha 2. |
| 11+ | Hejuru bikabije Akaga bikabije: uruhu n'amaso bitakingiwe bishobora kongera mu minota mike. Gerageza kwirinda izuba hagati y'umunsi, guma mu gicucu, ukoresha ibirinda byose: imyambaro, ingofero nini, indorerwamo zibuza UV na SPF 30+, bisubirwamo buri masaha 2. |
Ry'hoora guhooza
Ababaka b'obulamu bagira okwishingika nga UV index eri 3 n'okusingawo. Empapula z'ebibuga zikwerekana essawa ez'ekika ekiri 3 mu buli kibuga.
Ekiragiro ky'ekisiikirize: ekisiikirize kyawe kya nsi okusinga obunene bwawe, ekisobanirwe ky'enjuba kya kisinga — wesobanire.
Ibihindura igipimo cya 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 yemerera UV nyinshi kunyura. Ibicu bikunze kugabanya UV ariko bishobora kuyongera igihe gito ku mpande zabyo. Uburebure bw'ahantu bwongera hafi 10% kuri buri 1,000 m. Umukara w'urubura werekana hafi 80% bya UV, umucanga n'ubwoko bw'inyanja hafi 15–25%, bityo ushobora gutwikwa n'izuba uri mu gicucu ku nkombe y'inyanja cyangwa ku musozi w'urubura.