Cov yam ntxwv tseem ceeb ntawm ib puag ncig cov phooj ywg siab - cov xov hlau

1. Cov nplaim hluavtaws siab

Ib puag ncig high high - cov hlau kub tau raws li cov kev xav tau ntawm cov tsev ua ke nrog hluav taws tiv thaiv hluav taws. Nws yog qhov muaj zog tiv thaiv kev sib txuas ua ke thaum cov hluav taws thiab tiv thaiv kev sib kis ntawm cov nplaim taws thiab kev nthuav dav ntawm kev puas tsuaj.

2. Halogen - dawb

Ib puag ncig high high - cov xaim hluav taws xob siv ntsuab, thiab cov kws ua phooj ywg ib puag ncig, thiab ib cov khoom siv oxygen tshwj xeeb Qhov no tsis tsuas yog muab cov hluav taws xob zoo nkauj thiab tshuab hluav taws xob, tab sis kuj tseem yog kev sib txuas thiab tsis txhob muaj cov tshuaj tiv thaiv kab mob "los ntawm kev ua haujlwm ntawm lub cev"

3. Cov co tau tsawg

Ib puag ncig cov phooj ywg siab - cov raj hlau cov rwb thaiv tsev thiab cov hlau tsis muaj kev phom sij hnyav rau tib neeg lub cev, xws li Lead thiab Cadmium. Qhov no ua kom pom tseeb tias cov hlau yuav tsis paug av lossis dej ua haujlwm thaum siv lossis pov tseg. Tsis tas li ntawd, kev sim nruj toxicity tau ua pov thawj muaj kev nyab xeeb hauv cov nas hauv cov xwm txheej uas muaj kev sim.

4. Tsis muaj cov pa roj

Ib puag ncig cov phooj ywg siab - cov xov hlau uas siv cov khoom tshiab, ib puag ncig cov khoom siv txheej ua ib puag ncig. Nws ua rau muaj roj toxic thaum lub sijhawm tsim khoom, siv, kev sib txuas, thiab cov khoom siv tsawg heev rau cov neeg ua haujlwm, thiab cov khoom siv, ntxiv kom ua tau ib puag ncig ib puag ncig.

5. Lub teeb cig loj dua

Ib puag ncig cov phooj ywg siab - cov xaim hluav taws xob cov pa luam yeeb thaum lub sijhawm sib txuas, kev khiav tawm ntawm kev khiav tawm thiab kev tua hluav taws. Nws lub teeb rau kev hloov pauv ntau dua 40%, tseem ceeb tshaj tus qauv tsawg dua 20% rau cov nplaim hluav taws kub {} retardant siab {}} cov xov hlau.