Cov hnab yas tsis muaj tshuaj yej?Yog, koj tau hnov ​​​​tias yog ...

Tonchant chaw tsim tshuaj paus 100% yas dawb lim ntawv rau teabags,Kawm ntxiv ntawm no

Koj lub khob tshuaj yej yuav muaj 11 billion microplastic hais thiab qhov no yog vim li cas lub hnab tshuaj yej tau tsim.

Raws li kev tshawb fawb Canadian tsis ntev los no ntawm McGill University, steeping lub hnab yas tshuaj yej ntawm qhov kub ntawm 95 ° C tso tawm ib ncig ntawm 11.6 billion microplastics - cov khoom me me ntawm 100 nanometers thiab 5 millimeters loj - rau hauv ib khob.Piv nrog rau ntsev, piv txwv li, kuj tau pom tias muaj cov yas, txhua lub khob muaj ntau txhiab zaus ntau dua ntawm cov yas, ntawm 16 micrograms ib khob.

Qhov muaj ntau ntxiv ntawm micro- thiab nano-sized plastics nyob rau hauv ib puag ncig thiab cov saw zaub mov yog qhov kev txhawj xeeb zuj zus.Txawm hais tias cov neeg siv kev xav tau txhawb nqa kev txo qis ntawm cov yas siv ib zaug, qee cov tuam txhab tsim cov ntim yas tshiab los hloov cov ntawv siv ib txwm siv, xws li cov hnab yas yas.Lub hom phiaj ntawm txoj kev tshawb no yog los txiav txim seb cov hnab yas yas puas tuaj yeem tso cov microplastics thiab / lossis nanoplastics thaum lub sijhawm ua haujlwm hnyav.Peb qhia tau hais tias steeping ib leeg yas teabag ntawm brewing kub (95 ° C) tso tawm kwv yees li 11.6 billion microplastics thiab 3.1 billion nanoplastics rau hauv ib khob ntawm cov dej haus.Cov muaj pes tsawg leeg ntawm cov khoom tso tawm yog sib npaug rau cov thawj teabags (nylon thiab polyethylene terephthalate) siv Fourier-transform infrared spectroscopy (FTIR) thiab X-ray photoelectron spectroscopy (XPS).Cov qib ntawm nylon thiab polyethylene terephthalate cov khoom tso tawm los ntawm lub hnab ntim tshuaj yej yog ntau qhov kev txiav txim siab ntau dua li cov khoom yas uas tau tshaj tawm yav dhau los hauv lwm cov khoom noj.Qhov kev ntsuam xyuas thawj zaug ntawm cov kab mob invertebrate toxicity qhia tau hais tias tsuas yog raug cov khoom tso tawm los ntawm cov teabags ua rau muaj kev cuam tshuam ntawm kev coj tus cwj pwm thiab kev loj hlob.