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Sikali se-UV index
I-UV index ilinganisa kutsi imisebe yelilanga ye-ultraviolet inemandla kangakanani, ngasikali lesisukela ku-0 futsi asinamkhawulo ongetulu. Lapho inombolo iphakeme, isikhumba lesingavikelekile nemehlo alimala ngokushesha. Sikali nemibala kuyafana emhlabeni wonkhe (Inhlangano Yempilo Yemhlaba); eUnited States bume bunikwa yi-EPA neNational Weather Service.
| Indika ye-UV | Lizinga |
|---|---|
| 0–2 | Liphansi Lingcosi leliphansi kulanga le-UV kumuntfu lomkhulu. Gcobha tigilamu ngemalanga lapho kukhanya khona. Uma ushisa kalula, gcobha futsi usebentise isikhutshisi selanga se-SPF 30+ lesibanzi. Sihlabani, emanti lesikhukhula kanye lehlobo lelikhanyako kubonisa i-UV kanye kwengeta ekukhanyeni kwakho. |
| 3–5 | Liphakathi Lingcosi leliphakathi ngaphandle kwekukhanya kwelanga. Hlala etimfihlo ngasekhaya nasekhaya, lapho ilanga likhanya khona. Gcobha tikhwalo letivikelayo, ihatshi lenkhulu, tigilamu letivimba i-UV, bese ufaka isikhutshisi selanga se-SPF 30+ lesibanzi njalo emahora lamabili, ngisho nangemalanga lamafu, nangemuva kwekukhukhula noma kucwena. |
| 6–7 | Liphezulu Lingcosi leliphakathi ngaphandle kwekukhanya kwelanga: lisikhumba nemehlo adzinga kuvikeleka. Yehlisa sikhatsi ekukhanyeni kwelanga ngaphansi kwemini, funa imfihlo, bese ugqoka tikhwalo letivikelayo, ihatshi lenkhulu, tigilamu letivimba i-UV nesikhutshisi selanga se-SPF 30+ lesibanzi, sifakwa njalo emahora lamabili. |
| 8–10 | Liphezulu Kakhulu Lingcosi leliphakathi kakhulu: lisikhumba nemehlo angalimala futsi ashise kalula. Yehlisa sikhatsi ekukhanyeni kwelanga ngaphansi kwemini, funa imfihlo, bese ugqoka tikhwalo, ihatshi lenkhulu, tigilamu letivimba i-UV nesikhutshisi selanga se-SPF 30+ lesibanzi, sifakwa njalo emahora lamabili. |
| 11+ | Liphezulu Ngokwedlula Lingcosi leliphakathi ngokwedlula: lisikhumba nemehlo angashisa ngemaminithi. Lingama ekukhanyeni kwelanga ngaphansi kwemini, hlala etimfihlo, bese usebentisa yonkhe indlela yekuvikela: tikhwalo, ihatshi lenkhulu, tigilamu letivimba i-UV nesikhutshisi selanga se-SPF 30+ lesibanzi, sifakwa njalo emahora lamabili. |
Nini lokufanele uvikeleke
Tinhlangano tekuhlola tincumisa kutsi uvikeleke nase i-UV index ifinyelela ku-3 noma ngentasi. Emakhasi ethu ewedolobha akhombisa amahora lapho isikhundla selanga sifinyelela ku-3 eledolobheni ngalinye.
Umthetho wethunzi: uma ithunzi lakho lifushane kunawe, lilanga linamandla kakhulu — vikela wena.
Lokushintsha i-UV index
Kuphakama kwelilanga kubalulekile kunakonkhe: i-UV inemandla kakhulu ngehora lelanga, ehlobo nasedvute nel-equator. I-ozone lencane ivumela i-UV leningi kudlule. Titfunti ngokuvamile tiyehlisa i-UV kodvwa tingayikhuphula kancane emaphethelweni tayo. Kuphakama kwetulu kwengeta cishe 10% nge-1,000 m. Likhephu libuyisela i-UV lengetulu kuka-80%, lisanti nelibula lwaselwandle cishe 15–25%, ngako-ke ungasha ngetfunti ebhishi noma etulu lelislayidi.