Thaum twg urea formaldehyde ua npuas ncauj rwb thaiv tsev txwv uk?

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Thaum twg urea formaldehyde ua npuas ncauj rwb thaiv tsev txwv uk?
Thaum twg urea formaldehyde ua npuas ncauj rwb thaiv tsev txwv uk?

Video: Thaum twg urea formaldehyde ua npuas ncauj rwb thaiv tsev txwv uk?

Video: Thaum twg urea formaldehyde ua npuas ncauj rwb thaiv tsev txwv uk?
Video: Vajtswv Thaum Twg Koj Mam Los-NKAUJ NTSEEG TAWM TSHIAB (VamNeebLauj NpawgLem) Original MV by Chichia 2024, Hlis ntuj nqeg
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Rov qab rau 1982, thaum Consumer Products Safety Commission tau txwv cov khoom siv ib ntus, formaldehyde tau suav tias yog "qhov tshwm sim ntawm tib neeg carcinogen," tab sis cov lus ceeb toom txaus ntshai tau hloov kho mus rau "paub paub. carcinogen. "

Thaum twg urea formaldehyde ua npuas ncauj thaiv thaiv?

Nws tau siv kwv yees li ib nrab lab tsev nyob hauv North America. UFFI raug txwv hauv Canada hauv 1980, thiab ob xyoos tom qab ntawd nws raug txwv hauv Tebchaws Meskas vim kev ntshai txog kev tawm ntawm cov pa phem ntawm formaldehyde, ua rau khaus thiab muaj peev xwm ua rau cov pa roj carbon monoxide.

Vim li cas urea formaldehyde ua npuas ncauj rwb thaiv tsev ua rau muaj kev phom sij?

Kev noj qab haus huv tsis zoo cuam tshuam nrog formaldehyde, tshwj xeeb hauv kev ua haujlwm, suav nrog khaus ntawm qhov muag, qhov ntswg, thiab caj pas. Nws tuaj yeem ua rau bronchial spasm thiab pulmonary irritation, tshwj xeeb tshaj yog nyob rau hauv cov neeg rhiab heev (xws li mob hawb pob).

Puas muaj formaldehyde hauv npuas rwb thaiv tsev?

RetroFoam txhaj tshuaj ua npuas ncauj muaj ib kab ntawm formaldehyde tam sim no hauv cov khoom qhuav, tab sis thaum nws sib xyaw hauv peb cov tsheb thauj khoom, formaldehyde dissipates. Qhov no txhais tau hais tias cov khoom ua npuas ncauj tiav rau hauv koj cov phab ntsa yog formaldehyde-dawb.

Koj tuaj yeem ntes urea formaldehyde ua npuas ncauj rwb thaiv tsev li cas?

Saib ntawm cov npuas rwb thaiv tsev xim thiab ua tiav daim tawv nqaij: UFFI ua npuas ncauj yog daj thiab tsis ci, tab sis tej zaum yuav tau khaws dirt lossis plua plav thaum lub sij hawm teeb tsa thaum nws tawm ntawm qhov qias neeg lub tsev kab noj hniav los yog vim muaj hnub nyoog yooj yim thiab raug nws sab nrauv yuav tsaus daj.

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