Cov hnab tshuaj yej uas tsis muaj yas? Yog lawm, koj hnov ​​​​​​yog lawm ...

Chaw tsim khoom Tonchant 100% yas dawb lim ntawv rau cov hnab tshuaj yej,KAWM NTAWV NTAWM NO

Koj khob tshuaj yej yuav muaj 11 billion microplastic me me thiab qhov no yog vim txoj kev tsim lub hnab tshuaj yej.

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

Qhov muaj cov yas me me thiab nano ntau ntxiv hauv ib puag ncig thiab cov khoom noj khoom haus yog qhov txhawj xeeb ntau ntxiv. Txawm hais tias cov neeg siv khoom xav tau txhawb kom txo cov yas siv ib zaug xwb, qee cov chaw tsim khoom tab tom tsim cov yas ntim khoom tshiab los hloov cov ntawv siv ib txwm muaj, xws li cov hnab tshuaj yej yas. Lub hom phiaj ntawm txoj kev tshawb fawb no yog txiav txim siab seb cov hnab tshuaj yej yas puas tuaj yeem tso cov yas me me thiab / lossis nanoplastics thaum lub sijhawm steeping ib txwm muaj. Peb qhia tias steeping ib lub hnab tshuaj yej yas ntawm qhov kub brewing (95 ° C) tso tawm kwv yees li 11.6 billion microplastics thiab 3.1 billion nanoplastics rau hauv ib khob dej haus. Cov khoom sib xyaw ntawm cov khoom me me uas tso tawm tau phim rau cov hnab tshuaj yej qub (nylon thiab polyethylene terephthalate) siv Fourier-transform infrared spectroscopy (FTIR) thiab X-ray photoelectron spectroscopy (XPS). Cov theem ntawm nylon thiab polyethylene terephthalate cov khoom me me uas tso tawm los ntawm cov hnab tshuaj yej yog ntau qhov kev txiav txim siab ntawm qhov loj dua li cov yas thauj khoom yav dhau los tau tshaj tawm hauv lwm yam khoom noj. Kev ntsuam xyuas thawj zaug ntawm kev lom ntawm cov tsiaj tsis muaj pob txha qhia tau hais tias kev raug rau cov khoom me me uas tso tawm los ntawm cov hnab tshuaj yej tsuas yog ua rau muaj kev cuam tshuam rau tus cwj pwm thiab kev loj hlob raws li qhov ntau npaum li cas.