Ikhaya › Isikali se-UV index
Isikali se-UV index
I-UV index ilinganisa ukuba zinzima kangakanani imitha ye-ultraviolet etshisayo yelanga, kwisikali esiqala ku-0 esingenamda ophezulu. Xa inani liphezulu, isikhumba namaso angakhuselekanga bonakala ngokukhawuleza. Isikali nemibala iyafana kwihlabathi liphela (World Health Organization); eUnited States uqikelelo lupapashwa yi-EPA kunye neNational Weather Service.
| Inkqubo ye-UV | Inqanaba |
|---|---|
| 0–2 | Phantsi Ingozi ephantsi yemitha ye-UV yelanga kumntu oqhelekileyo. Nxiba iiglasi zelanga kwiintsuku ezikhanyayo. Ukuba uvuthelwa lula, zifihle kwaye usebenzise isikhuseleko selanga se-broad-spectrum SPF 30+. Isanti, amanzi kunye nekhephu zibonakalisa imitha ye-UV kwaye zongeze ukuchatshazelwa kwakho. |
| 3–5 | Phakathi Ingozi ephakathi yokuchatshazelwa lilanga ngaphandle kokukhusela. Hlala kwindawo ethuli kufuphi nesiqingatha sosuku, xa ilanga linamandla kakhulu. Nxiba impahla ekhuselayo, ihat enobubanzi kunye neeglasi zelanga ezivimba i-UV, kwaye ubeke isikhuseleko selanga se-broad-spectrum SPF 30+ rhoqo iiyure ezi-2, nokuba kwiintsuku ezinamafu, nangemva kokuhlamba okanye ukubhaka. |
| 6–7 | Phezulu Ingozi ephezulu yokuchatshazelwa lilanga ngaphandle kokukhusela: isikhumba namehlo adinga ukukhuselwa.inciphisa ixesha elilangeni malunga nesiqingatha sosuku, funa indawo ethuli, kwaye nxibe impahla ekhuselayo, ihat enobubanzi, iiglasi zelanga ezivimba i-UV kunye nesikhuseleko selanga se-broad-spectrum SPF 30+, sibekwa kwakhona rhoqo iiyure ezi-2. |
| 8–10 | Phezulu kakhulu Ingozi ephezulu kakhulu: isikhumba namehlo angakhuselwanga anokonakala kwaye avuthelwe ngokukhawuleza. Yinciphise ixesha elilangeni malunga nesiqingatha sosuku, funa indawo ethuli, kwaye uzifihle ngeempahla, ihat enobubanzi, iiglasi zelanga ezivimba i-UV kunye nesikhuseleko selanga se-broad-spectrum SPF 30+, sibekwa kwakhona rhoqo iiyure ezi-2. |
| 11+ | Ekhethekileyo Ingozi ekhethekileyo: isikhumba namehlo angakhuselwanga anokuvuthelwa ngemizuzu. Zama ukuphepha ilanga malunga nesiqingatha sosuku, hlala kwindawo ethuli, kwaye usebenzise zonke iindlela zokukhusela: impahla, ihat enobubanzi, iiglasi zelanga ezivimba i-UV kunye nesikhuseleko selanga se-broad-spectrum SPF 30+, sibekwa kwakhona rhoqo iiyure ezi-2. |
Xa ukhuseleka
Iiarhente zempilo zicebisa ukukhuselwa xa i-UV index ingu-3 okanye ngaphezulu. Amakhasi ethu edolophu abonisa iiyure ezichanekileyo apho uqikelelo lwanamhlanje lufikelela ku-3 kwidolophu nganye.
Umthetho wesisithunzi: ukuba isisithunzi sakho sifutshane kunawe, i-UV yelanga iphezulu kakhulu — uzikhusele.
Yintoni etshintsha i-UV index
Ubude belanga bubaluleke kakhulu: i-UV inamandla kakhulu malunga nesiqingatha selanga, ehlotyeni kwaye kufuphi ne-equator. I-ozone encinci ivumela i-UV engakumbi ukuba ingene. Amaphu ahlala ehla kodwa anganyuka ixesha elifutshane emaphethelweni awo. Ukuphakama kongeza malunga ne-10% nge-1,000 m nganye. Ikhephu ibonisa ukuya kuthi ga kwi-80% ye-UV, isanti neefomu zolwandle malunga ne-15–25%, ngoko unokutsha kwindawo epholileyo elwandle okanye kwi-ski slope.