Ultraviolet poizoniyu ndi katundu

Ultraviolet poizoniyu - ndi mu atomu poizoni oti timaganiza amene zimasiyanasiyana malire kuzungulira violet sipekitiramu wa X-ray. Dziwani kuti kutchula koyamba za zodabwitsazi anatuluka m'nthawi ya khumi ndi chitatu. Zinali ndiye kuti , anthu Indian m'mabuku awo anafotokoza mlengalenga imene munali violet kuwala, maso ali maliseche.

M'zaka za m'ma 17 mochedwa, pamene sipekitiramu infuraredi wakhala wapezeka, asayansi padziko lonse kuyamba kuphunzira cheza kumapeto osiyana sipekitiramu kuwala. Ndimo momwe icho poyamba anapeza ndi kuphunzira ndi cheza ultraviolet. Mu 1801, I. W. Ritter anapeza kuti siliva okusayidi darkens mwamsanga atadziŵa kuwala wosaonekayo, a gawo violet a sipekitiramu wa.

Pa nthawi yomweyo, asayansi afike pomvetsetsa kuti kuunika tichipeza zigawo zitatu zosiyana. Izi otchedwa owoneka kuunika (kapena ounikira chigawo), infuraredi ndi ultraviolet poizoniyu (omwe ali yemweyo reductive). M'tsogolo, ndodo kafukufuku mwachangu ankafufuza zotsatira cheza ultraviolet pa zamoyo, komanso udindo wake mu chikhalidwe.

Ultraviolet poizoniyu: katundu ndi gulu

Pakali pano, ndi ultraviolet kunyezimira akhoza kugawidwa mu zitatu zazikulu, omwe ali ndi makhalidwe ake kuti:

• UV-C, amene kwambiri imadziwika pansi pa dzina la cheza Popanga madzi a gamma. Iwo ayenera yomweyo kudziŵika kuti ndi oopsa kwambiri thanzi la thupi. Mwamwayi, cheza amenewa pafupifupi atamezedwa kotheratu ndi mpweya, ozoni ndi nthunzi ya madzi mpira ngakhale pamene kudutsa m'mlengalenga dzikoli.
• UV-B - mtundu wina wa poizoni amenenso pafupifupi mwathunthu chosakanikirana ndi mpweya envelopu wa Dziko Lapansi. Akubwera pamwamba si maperesenti oposa khumi. Mwa njira, mchikakamizo cha kuwala izi induces yopanga melanin mu khungu anthu.

• UV-A. Mtundu wa cheza pafupifupi mwathunthu akubwera pamwamba lathuli ndipo pafupifupi sanali woopsawo kwa zamoyo. kukhudzana yaitali amachititsa mofulumira kukalamba khungu.

Koma katundu, chifukwa pachiyambi tisaiwale kuti dzuwa limakhala ndi maso wamaliseche. Komanso, ali mkulu reactivity ndipo ndi chothandizira kwa zosiyanasiyana zachilengedwe. Mkulu woipa ultraviolet adzalandira antibacterial. Ndipo, ndithudi, tiyenera kukumbukira kuti pa mlingo laling'ono, kuli ndi ubwino pa thupi la munthu.

Kuwala ndi kukopa kwake pa thupi la munthu

Pomwepo Dziwani kuti cheza ndendende ultraviolet amathandiza kuti lomenyera anthu khungu vitamini E, womwe amapereka yachibadwa kagayidwe kashiamu ndi fupa bwino. Komanso, kuwala kwa sipekitiramu ndi udindo kwa kaimbidwe kwachilengedwenso wa zamoyo. Iwo imatsimikizirika kuti kuwala ultraviolet kumawonjezera milingo magazi otchedwa "timadzi kulimba mtima", omwe amaonetsetsa kuti mwachibadwa boma maganizo.

Mwatsoka, kuwala ndi zothandiza ndi zofunikira okha Mlingo yaing'ono. Kwambiri kukhudzana kwambiri cheza izi chifukwa azisiyana. Mwachitsanzo, nthawi yaitali kukhudzana ndi kuwala ultraviolet pa khungu Iyamba ukalamba, ndi zina, chimachititsa ndi amayaka. Nthawi zina cheza chimachititsa masinthidwe maselo, zimene ndiye pokhala chotupa chotupa.

Kuchuluka ultraviolet poizoniyu zikuwononga amakhudza diso kwa diso, ndi kuchititsa lamoto. Choncho, mu nyengo dzuwa basi ayenera kugwiritsa ntchito magalasi apadera zozitetezera.