Ekaya › Xikalo xa UV index
Xikalo xa UV index
The UV index measures how strong the sun's burning ultraviolet rays are, on a scale that starts at 0 and has no upper limit. The higher the number, the faster unprotected skin and eyes are damaged. The scale and colors are the same worldwide (World Health Organization); in the United States the forecast is issued by the EPA and the National Weather Service.
| Xiyimo xa UV | Xiyimo |
|---|---|
| 0–2 | Low Xikho xa le hansi eka moya wa UV wa dyambu eka munhu wa xiyimo xa le hansi. Ambala swihlamariso loko dyambu ri vangama. Loko u tshwa le hansi, sirhelela nhloko na ku tirhisa SPF 30+ ya broad-spectrum. Muhlaba, mati na maphuka ya vangama ya engetela xikho xa wena. |
| 3–5 | Moderate Xikho xa xiyimo xa le hansi loko u nga sirhelelekanga eka dyambu. Tshama eka ndzhaka hi nkarhi wa nhlekanhi, loko dyambu ri ri na matimba. Ambala swiambalo swa ku sirhelela, xihlamariso xa nhloko xa xikarhi xa xikarhi na swihlamariso swa UV, na ku tirhisa SPF 30+ ya broad-spectrum hi tiawara ta 2, hambi loko ku ri na mapapa, na endzhaku ka ku khukhumeta kumbe ku tshwa. |
| 6–7 | High Xikho xa le hansi loko u nga sirhelelekanga eka dyambu: nhloko na mahlo yi lava ku sirheleleka. Cima nkarhi wa wena eka dyambu hi nkarhi wa nhlekanhi, lava ndzhaka, na ku ambala swiambalo swa ku sirhelela, xihlamariso xa nhloko xa xikarhi xa xikarhi, swihlamariso swa UV na SPF 30+ ya broad-spectrum, yi hlamuseliwa hi tiawara ta 2. |
| 8–10 | Le henhla swinene Xikho xa le hansi swinene: nhloko na mahlo loko yi nga sirhelelekanga yi nga tshwa hi ku hatlisa. Cima nkarhi wa wena eka dyambu hi nkarhi wa nhlekanhi, lava ndzhaka, na ku sirhelela hi swiambalo, xihlamariso xa nhloko xa xikarhi xa xikarhi, swihlamariso swa UV na SPF 30+ ya broad-spectrum, yi hlamuseliwa hi tiawara ta 2. |
| 11+ | Extreme Xikho xa le hansi swinene: nhloko na mahlo loko yi nga sirhelelekanga yi nga tshwa hi timinete. Linga ku cima dyambu hi nkarhi wa nhlekanhi, tshama eka ndzhaka, na ku tirhisa xisirhelelo hinkwaxo: swiambalo, xihlamariso xa nhloko xa xikarhi xa xikarhi, swihlamariso swa UV na SPF 30+ ya broad-spectrum, yi hlamuseliwa hi tiawara ta 2. |
Nkarhi wo ti hlayisa
Tinhlangano ta rihanyo ti tlhela ti hlayiseke loko indekisi ya UV yi ri 3 kumbe ehenhlu. Matluka ya hina ya mirhi ya tiendla ku vonaka tiawara ta xiviri loko xivono xa namuntlha xi fika eka 3 eka yin'wana ni yin'wana ya mirhi.
Mulawulo wa ndzhuti: loko ndzhuti wa wena wu ri kutsongo ku tlula wena, dyambu ri ni matimba yo tala — hlayiseka.
Xihundla xa UV index
Vuhlebyeni bya dyambu byi na nkoka swinene: UV yi tiya swinene endzhaku ka nhlikanhi, eka xixika ni loko u ri kusuhi ni equator. Ozone yo olova yi pfumelela UV yo tala ku nghena. Mapapa ma hunguta UV kambe ma nga yi engetela xikarhi xa nkarhi loko ma ri eka makumu ya wona. Vuhlebyeni byi engetela hi 10% eka 1,000 m. Xitlhavi xi hlamusela 80% ya UV, maswazi ni mbhoni ya lwandle hi 15–25%, hikwalaho u nga tshovela eka ndzhuti eka lwandle kumbe eka xikwembu xa xitlhavi.