Iyo uguze umutaka, abaguzi bazajya bafungura umutaka kugira ngo barebe niba imbere hari "kole y'ifeza". Muri rusange, duhora dutekereza ko "kole y'ifeza" ingana na "anti-UV". Ese koko izarwanya UV?
None se, "kole y'ifeza" ni iki mu by'ukuri?
Kole y'ifeza ni urwego, rukoreshwa cyane cyane mu gutwikira, ntabwo rurwanya imirasire ya UV
Dukurikije ubunini bw'igitambaro, gishobora kugabanywamo ifeza y'ibanze, ifeza y'inyongera, ifeza y'ifeza inshuro eshatu, ifeza y'ifeza inshuro enye, uko ibice byinshi bipfutse, bigaragaza ingaruka nziza zo gupfuka, ingaruka zo gupfuka igicucu, ibyiyumvo byiza bigaragara bizaba bikonje, uretse kole y'ifeza, hari "kole y'amabara" iherutse gusohoka n'umutaka "w'umukara", ingaruka zo kuziba urumuri nazo ni nziza.
Mu by’ukuri, intego y’umutaka ufite icyuma cya feza mu gicucu, aho kuba urwanya UV, ariko kandi kubera ko kwinjira kwa UV-B kuzaba guke, hari umutaka ufite urwego runini rw’uruzitiro rufatika, ingaruka imwe ni ukwirinda gutwikwa n’izuba.
Ariko mu by’ukuri, ntibyemewe gukoresha imitaka irimo kole y’ifeza, kubera impamvu ebyiri.
1. Kole y'ifeza ni irangi rya shimi, niba ari kole nziza y'ifeza ifite ubuziranenge, ariko imitaka ihendutse muri rusange yo kugabanya ibiciro, kole y'ifeza irangizwa kugira ngo isa neza nta kintu na kimwe, igiteye amakenga ni uko wenda mu zuba byoroshye gutanga ibintu bibi ku mubiri w'umuntu, mu gihe nta buryo bwo kwemeza kole nziza n'mbi y'ifeza, gerageza kwirinda kuyikoresha
2. Urukuta rw'imbere rw'umutaka urimo icyuma cy'ifeza, ruzagaragaza imirasire y'imirasire miremire, kuko ingaruka z'ubushyuhe bw'ikirere zituruka ku kugaruka no kugaruka, ubushyuhe burimo, ndetse zishobora no gutuma ubushyuhe bwijima burushaho kwiyongera!
Kubwibyo, nk'umucuruzi w'umwuga w'umutaka, dukoresha gusa irangi ryiza rya UV ricapa ku mutaka wacu. Nta bintu bya shimi bizava mu mutaka wacu. Byongeye kandi, irangi ry'umukara ni ryo ryiza muri rusange.
Igihe cyo kohereza: Nzeri-02-2022