Izindaba

Iphinde yanyatheliswa kusukela ku-Institute of Biodegradable Materials

I-Institute of Biodegradable Materials ibike ukuthi muva nje, ukulimala kwe-microplastic kuye kwanakwa kancane kancane, futhi izifundo ezihlobene nazo ziye zavela ngokulandelana, eziye zatholakala egazini lomuntu, indle kanye nokujula kolwandle.Nokho, ocwaningweni lwakamuva oluphothulwe i-Hull York Medical College e-United Kingdom, abacwaningi bathole ama-microplastics ekujuleni kwamaphaphu abantu abaphilayo okokuqala ngqa.

Lolu cwaningo, olushicilelwe kumagazini iGeneral Environmental Science, luwucwaningo lokuqala oluqinile lokuhlonza amapulasitiki emaphashini abantu abaphilayo.

"Ama-Microplastics atholakale kumasampula omuntu ozimele ngaphambili - kodwa lokhu kuyisifundo sokuqala esiqinile esibonisa i-microplastics emaphashini abantu abaphilayo," kusho uDkt. Laura Sadofsky, uMfundisi Omkhulu we-Respiratory Medicine kanye nomlobi ohamba phambili wephepha., “Imigudu yomoya emaphashini mincane kakhulu, ngakho akekho owayecabanga ukuthi ingase ifike lapho, kodwa kusobala ukuthi yafika.

https://www.idenewmat.com/uploads/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_202204100946181-300×116.jpg

Umhlaba ukhiqiza amathani epulasitiki alinganiselwa ezigidini ezingama-300 unyaka ngamunye, cishe u-80% wawo ophelela ezindaweni zokulahla imfucumfucu nakwezinye izingxenye zemvelo.Amaplastiki amancane angaba ububanzi ukusuka kuma-nanometer angu-10 (amancane kuneso lomuntu angawabona) kuye kumamilimitha angu-5, cishe ubukhulu berabha ekugcineni kwepensela.Izinhlayiya ezincane zingantanta emoyeni, emanzini kampompi noma asebhodleleni, olwandle noma emhlabathini.

Eminye imiphumela yocwaningo lwangaphambilini kuma-microplastics:

Ucwaningo lwango-2018 lwathola ipulasitiki kumasampula esitulo ngemuva kokuba izifundo zithole ukudla okusongwe ngepulasitiki.

Iphepha lango-2020 lahlola izicubu zamaphaphu, isibindi, ubende nezinso lathola upulasitiki kuwo wonke amasampula afundwayo.

Ucwaningo olushicilelwe ngoMashi lwathola izinhlayiya zepulasitiki egazini lomuntu okokuqala ngqa.

Ucwaningo olusha olusanda kwenziwa izifundiswa e-Medical University of Vienna luphinde lwabonisa ukuthi ukuphuza amanzi asemabhodleleni epulasitiki unyaka wonke kungaholela ekuthathweni kwezinhlayiya ze-microplastic ne-nanoplastic (MNP) ezingaba ngu-100,000 ngonyaka.

https://www.idenewmat.com/uploads/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_202204100946181-300×116.jpg

Ucwaningo lwamanje, nokho, lufuna ukwakha emsebenzini wangaphambili ngokuthola ama-microplastics ezicutshini zamaphaphu ngokuvuna izicubu ngesikhathi sokuhlinzwa ezigulini eziphilayo.

Ukuhlaziywa kwembula ukuthi amasampula ayi-11 kwangu-13 acwaningiwe aqukethe ama-microplastic futhi athola izinhlobo eziyi-12 ezihlukene.Lawa ma-microplastics ahlanganisa i-polyethylene, inayiloni nama-resin avame ukutholakala emabhodleleni, emaphaketheni, ezimpahleni nasezintweni zelineni.intambo nezinye izinqubo zokukhiqiza.

Amasampula wesilisa ayenamazinga aphezulu kakhulu e-microplastics kunamasampula abesifazane.Kodwa okwamangaza kakhulu ososayensi ukuthi lawa mapulasitiki avelaphi, anengxenye engaphezu kwengxenye yamapulasitiki amancane atholakala ezingxenyeni ezingezansi zamaphaphu.

"Besingalindele ukuthola izinombolo eziphezulu zezinhlayiya ze-microplastic ezindaweni ezijulile zamaphaphu, noma ukuthola izinhlayiya zalolu hlobo," kusho uSadofsky.Bekucatshangwa ukuthi izinhlayiya zalolu hlobo zizohlungwa noma zivaleleke ngaphambi kokuba zijule kangaka.”

Ososayensi babheka izinhlayiya zepulasitiki ezihamba emoyeni ezisukela ku-nanometer engu-1 ukuya kuma-microns angu-20 ukuze zingahogeki, futhi lolu cwaningo lunikeza ubufakazi obengeziwe bokuthi ukuhogela kubanikeza indlela eqondile eya emzimbeni.Njengokutholwe kwakamuva okufanayo kulo mkhakha, kuphakamisa umbuzo obaluleke kakhulu: Iyini imithelela empilweni yomuntu?

Ukuhlolwa okwenziwa ngososayensi kulebhu kubonise ukuthi ama-microplastic angakwazi ukuhlukanisa futhi aguqule umumo kumaseli wamaphaphu omuntu, abe nemiphumela yobuthi evamile kumaseli.Kodwa lokhu kuqonda okusha kuzosiza ukuqondisa ucwaningo olujulile emiphumeleni yako.

"Ama-Microplastics atholwe kumasampula okuhlolwa komuntu ngaphambili - lokhu kuyisifundo sokuqala esiqinile sokukhombisa ukuthi kukhona ama-microplastics emaphashini abantu abaphilayo," kusho uSadofsky.“Kuyakhombisa futhi ukuthi basendaweni engezansi yamaphaphu.Imigudu yokuphefumula yamaphaphu kakhulu Incane, ngakho akekho owayecabanga ukuthi ingase ifike lapho, kodwa ifinyelele lapho ngokucacile.Ukucaciswa kwezinhlobo namazinga we-microplastics esiwatholile manje angazisa izimo zomhlaba wangempela zokuhlolwa kokuchayeka elabhorethri ngenhloso yokunquma imiphumela yezempilo.”

"Kuwubufakazi bokuthi sinopulasitiki emizimbeni yethu - akufanele," uDick Vethaak, isazi semvelo eVrije Universiteit Amsterdam, etshela abe-AFP.

Ngaphezu kwalokho, ucwaningo luphawule "ukukhathazeka okwandayo" mayelana nezingozi ezingaba khona zokungenisa nokuhogela ama-microplastics.