Dab tsi yog qhov ntsuas UV siab heev?
Dab tsi yog qhov ntsuas UV siab heev?

Video: Dab tsi yog qhov ntsuas UV siab heev?

Video: Dab tsi yog qhov ntsuas UV siab heev?
Video: Kuv mam uv - Xais Vaj ( Official MV ) 2024, Lub Xya hli ntuj
Anonim

" Siab "A UV ntsuas nyeem 6 txog 7 txhais tau tias siab yuav raug teeb meem los ntawm kev tiv thaiv tshav ntuj. Yuav tsum muaj kev tiv thaiv tawv nqaij thiab qhov muag puas. Txo sijhawm hauv Hnub thaum nruab nrab ntawm 10 teev sawv ntxov txog 4 teev tsaus ntuj Yog tias sab nraum zoov, nrhiav qhov ntxoov ntxoo thiab hnav khaub ncaws tiv tshav ntuj, lub kaus mom dav dav, thiab UV -cov iav looj tsom iav dub.

Ntxiv mus, dab tsi yog qhov txaus ntshai UV ntsuas?

A UV Index nyeem ntawv 8 txog 10 txhais tau tias muaj kev pheej hmoo loj ntawm kev raug mob los ntawm lub hnub tsis muaj kev tiv thaiv. Ua tib zoo ceev faj ntxiv vim tias tawv nqaij thiab qhov muag tsis muaj kev tiv thaiv yuav puas thiab tuaj yeem hlawv tau sai. Yog tias sab nraum zoov, nrhiav qhov ntxoov ntxoo thiab hnav khaub ncaws tiv thaiv, lub kaus mom dav dav, thiab UV -cov iav looj tsom iav dub.

Zoo sib xws, puas yog UV Index 2 siab? Cov siab dua cov UV Index , ntau zog lub hnub UV cov duab ci thiab nrawm dua koj tuaj yeem hlawv. Daim duab hauv qab no qhia txog qib ntawm UV Index thiab koj yuav tsum ua dab tsi los tiv thaiv koj tus kheej. UV Index 0- 2 txhais tau tias muaj kev phom sij tsawg los ntawm lub hnub UV rays rau tus neeg nruab nrab.

Tsis tas li, qhov ntsuas UV siab tshaj plaws yog dab tsi?

29, 2003, ntiaj teb cov ntaub ntawv UV ntsuas ntawm 43.3 tau kuaj pom ntawm Bolivia's Licancabur volcano. Cov UV ntsuas yog siv los kwv yees lub zog ntawm lub hnub ultraviolet duab tshav Lub tshuab ntsuas hluav taws xob sab laug ntawm 19, 423-ko taw-siab (5, 920 metres) nce qhov nce siab heev UV -B hluav taws xob thaum lub caij ntuj sov yav qab teb Hemisphere.

UV index siab npaum li cas yuav tsum ziab?

Lub sij hawm hlawv tau sib txawv los ntawm hom tawv nqaij, tab sis ntawm qhov qis UV qib nws yog kwv yees li 60 feeb. A UV Index nyeem ntawv ntawm 3 thiab 5 txhais tau tias muaj qhov pheej hmoo pheej hmoo ntawm tshav ntuj rau tus neeg nruab nrab. Hauv qib no nws tau pom zoo kom nrhiav qhov ntxoov ntxoo ntawm 10 teev sawv ntxov txog 4 teev tsaus ntuj thaum lub hnub lub hnub ci ci yog nws qhov muaj zog tshaj plaws.

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