Dab tsi yog 5 yam tshuaj phem?
Muaj ntau yam tshuaj phem uas peb ntsib txhua hnub hauv peb lub neej. Cov tshuaj no ua rau muaj teeb meem loj rau peb kev noj qab haus huv thiab ib puag ncig. Hauv tsab xov xwm no, peb yuav tshawb txog tsib yam tshuaj no thiab delve rau hauv lawv cov teebmeem. Nws yog ib qho tseem ceeb kom paub txog cov tshuaj no thiab ua tib zoo ceev faj kom txo peb qhov raug rau lawv.
1. Coj
Lead yog cov tshuaj lom neeg hlau uas tib neeg tau raug rau ntau pua xyoo. Nws tau siv dav hauv ntau yam khoom siv kom txog rau thaum nws pom muaj kev cuam tshuam rau kev noj qab haus huv. Cov hmoov txhuas tuaj yeem pom hauv cov xim qub, roj teeb, cov kav dej, thiab txawm tias qee cov tshuaj pleev ib ce. Thaum noj los yog nqus tau, cov hmoov lead tuaj yeem ua rau ntau lub cev puas tsuaj, thiab kev raug mob mus ntev tuaj yeem ua rau muaj teeb meem kev xav thiab kev loj hlob, tshwj xeeb tshaj yog rau cov menyuam yaus. Nws yog ib qho tseem ceeb kom tsis txhob muaj cov khoom uas muaj cov hmoov lead thiab ua raws li kev nyab xeeb thaum kho cov tsev qub.
2. Mercury
Mercury yog ib yam uas tshwm sim hnyav hlau uas muaj tshuaj lom rau tib neeg thiab tsiaj qus. Nws feem ntau tso tawm rau hauv ib puag ncig los ntawm cov txheej txheem kev lag luam, tshwj xeeb tshaj yog cov hluav taws xob hluav taws xob hluav taws xob thiab cov mining kub. Mercury tuaj yeem khaws cia hauv cov nqaij nruab deg thiab ua rau muaj kev puas tsuaj rau lub paj hlwb, tshwj xeeb tshaj yog nyob rau hauv fetuses thiab cov menyuam yaus. Cov poj niam cev xeeb tub raug qhia kom txwv tsis pub lawv noj qee hom ntses vim lawv cov ntsiab lus mercury. Tsis tas li ntawd, kev pov tseg cov khoom uas muaj mercury, xws li cov ntsuas kub thiab cov fluorescent qhov muag teev, yuav tsum tau ua lub luag haujlwm los tiv thaiv ib puag ncig.
3. Asbestos
Asbestos yog ib pawg ntawm cov zaub mov uas ib zaug tau siv dav hauv cov ntaub ntawv tsim kho rau lawv cov cua sov ua haujlwm thiab ua haujlwm ntev. Txawm li cas los xij, qhov nqus ntawm asbestos fibers tuaj yeem ua rau muaj teeb meem kev noj qab haus huv, nrog rau mob ntsws cancer thiab mesothelioma. Cov kab mob no feem ntau tshwm sim ntau xyoo tom qab kis tau, ua rau kev tshawb pom ntxov thiab kev tiv thaiv tseem ceeb heev. Asbestos tam sim no raug txwv hauv ntau lub tebchaws, tab sis nws tseem tuaj yeem pom hauv cov tsev qub. Yog tias koj xav tias muaj asbestos, nws yog ib qho tseem ceeb uas yuav tau nrhiav kev pab rau kev tshem tawm kom zoo.
4. Formaldehyde
Formaldehyde yog cov roj tsis muaj xim nrog lub zog, pungent tsw. Nws yog dav siv nyob rau hauv ntau yam khoom, nrog rau cov nplaum, textiles, thiab cov khoom tu tawv nqaij. Kev raug formaldehyde ntev ntev tuaj yeem ua rau muaj teeb meem ua pa, khaus tawv nqaij, thiab txawm tias mob qog noj ntshav. Nws yog ib qho tseem ceeb uas yuav tsum tau ceev faj thaum siv cov khoom uas muaj formaldehyde thiab xyuas kom muaj qhov cua zoo nyob hauv qhov chaw sab hauv kom txo tau qhov raug.
5. Benzene
Benzene yog cov kua ua kua uas muaj nyob rau hauv cov roj av, roj av, thiab luam yeeb. Nws yog feem ntau siv los ua ib qho hnyav hauv ntau yam kev tsim khoom. Kev nqus tau los yog noj cov tshuaj benzene tuaj yeem ua rau cov pob txha puas, ua rau txo qis hauv cov qe ntshav liab. Kev raug benzene ntev ntev yog cuam tshuam nrog kev pheej hmoo ntawm kev tsim kab mob leukemia. Nws yog ib qho tseem ceeb kom ua raws li cov lus qhia kev nyab xeeb thaum tuav cov khoom uas muaj benzene thiab tsis txhob haus luam yeeb hauv cov cheeb tsam uas nyob ib puag ncig los tiv thaiv kev raug mob.
Hauv kev xaus, cov tshuaj tau hais los saum toj no tsuas yog ob peb ntawm ntau yam teeb meem uas muaj nyob hauv peb ib puag ncig. Nws yog ib qho tseem ceeb kom paub txog lawv lub neej, nkag siab txog lawv cov kev phom sij, thiab ua tib zoo saib xyuas kom txo tau qhov raug mob. Tsoomfwv cov cai tswjfwm, kev siv lub luag haujlwm, thiab kev pov tseg pov tseg kom raug yog qhov tseem ceeb hauv kev txo qis kev cuam tshuam ntawm cov tshuaj no rau peb kev noj qab haus huv thiab ib puag ncig. Los ntawm kev paub thiab ua haujlwm, peb tuaj yeem tsim lub ntiaj teb kev nyab xeeb thiab noj qab haus huv rau peb tus kheej thiab cov tiam tom ntej.
