Qhov muaj peev xwm siab thiab kev siv rov qab tau ntawm PVC qhia tau tias cov tsev kho mob yuav tsum pib nrog PVC rau cov kev pab cuam rov ua dua tshiab ntawm cov khoom siv kho mob yas. Yuav luag 30% ntawm cov khoom siv kho mob yas yog ua los ntawm PVC, uas ua rau cov khoom siv no yog cov polymer siv ntau tshaj plaws rau kev ua cov hnab, cov raj, cov ntaub npog qhov ncauj thiab lwm yam khoom siv kho mob pov tseg.
Cov feem seem yog faib rau 10 hom polymers sib txawv. Qhov no yog ib qho ntawm cov ntsiab lus tseem ceeb ntawm kev tshawb fawb kev lag luam tshiab uas tau ua los ntawm lub tuam txhab kev tshawb fawb kev lag luam thoob ntiaj teb thiab kev tswj hwm kev lag luam. Txoj kev tshawb fawb kuj kwv yees tias PVC yuav tswj hwm nws txoj haujlwm thib ib kom txog rau tsawg kawg yog xyoo 2027.
PVC yooj yim rau kev rov ua dua tshiab thiab muaj ntau yam kev siv. Cov khoom siv uas xav tau cov khoom mos thiab tawv tuaj yeem ua los ntawm ib qho polymer - qhov no yog qhov tseem ceeb rau kev ua tiav ntawm kev rov ua dua tshiab yas. Lub peev xwm siab thiab kev rov ua dua tshiab tshwj xeeb ntawm PVC qhia tau tias cov tsev kho mob yuav tsum pib nrog cov khoom siv yas no thaum xav txog cov phiaj xwm rov ua dua tshiab rau cov khib nyiab yas kho mob.
Cov neeg ua haujlwm cuam tshuam tau hais txog cov kev tshawb pom tshiab: "Kev sib kis tau qhia txog lub luag haujlwm tseem ceeb uas cov khoom siv kho mob yas pov tseg ua si hauv kev tiv thaiv thiab tswj kev kis kab mob hauv tsev kho mob. Qhov cuam tshuam tsis zoo ntawm qhov kev vam meej no yog cov khib nyiab yas hauv tsev kho mob nce ntxiv. Peb ntseeg tias kev siv dua tshiab yog Ib Feem ntawm kev daws teeb meem. Hmoov zoo, cov yas siv ntau tshaj plaws hauv kev kho mob kuj yog cov yas siv dua tshiab tshaj plaws, yog li peb yaum kom cov tsev kho mob pib siv PVC rau kev siv dua tshiab.
Txog tam sim no, qhov muaj cov tshuaj CMR (carcinogenic, mutagenic, reproductive toxicity) hauv qee yam khoom siv PVC tau ua rau muaj kev cuam tshuam rau kev siv PVC kho mob dua tshiab. Lawv hais tias qhov kev sib tw no tau daws lawm: "Rau yuav luag txhua daim ntawv thov, lwm cov plasticizers rau PVC muaj thiab siv. Plaub ntawm lawv tam sim no tau teev nyob rau hauv European Pharmacopoeia, uas yog cov khoom kho mob hauv Tebchaws Europe thiab lwm thaj chaw. Tsim cov lus qhia kev nyab xeeb thiab zoo."
Lub sijhawm tshaj tawm: Cuaj hlis-22-2021
