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Nkhani

Kusindikizidwanso kuchokera ku: Institute of Biodegradable Materials

Institute of Biodegradable Materials inanena kuti posachedwapa, kuvulaza kwa microplastics pang'onopang'ono kwakhala kukuyang'aniridwa, ndipo maphunziro okhudzana nawo atulukira, omwe apezeka m'magazi a anthu, ndowe ndi kuya kwa nyanja.Komabe, mu kafukufuku waposachedwapa womalizidwa ndi Hull York Medical College ku United Kingdom, ofufuza apeza microplastics mu kuya kwa mapapu a anthu amoyo kwa nthawi yoyamba.

Phunzirolo, lofalitsidwa mu nyuzipepala ya General Environmental Science, ndilo phunziro loyamba lamphamvu lozindikira mapulasitiki m'mapapu a anthu amoyo.

"Microplastics yapezeka mu zitsanzo za autopsy yaumunthu kale - koma iyi ndi phunziro loyamba lolimba lomwe likuwonetsa microplastics m'mapapo a anthu amoyo," adatero Dr. Laura Sadofsky, Mphunzitsi Wamkulu mu Respiratory Medicine ndi wolemba wamkulu wa pepala., “Njira zolowera mpweya m’mapapu n’zopapatiza kwambiri, choncho palibe amene ankaganiza kuti n’zotheka kukafika kumeneko, koma mwachionekere anapitadi.

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Dziko lapansi limapanga pafupifupi matani 300 miliyoni a pulasitiki chaka chilichonse, pafupifupi 80% yazomwe zimathera m'malo otayirako komanso madera ena a chilengedwe.Tinthu tating’onoting’ono tating’onoting’ono timatha kukhala m’mimba mwake kuchokera ku ma nanometer 10 (aang’ono kuposa mmene diso la munthu tingawone) kufika mamilimita 5, pafupifupi kukula kwa chofufutira kumapeto kwa pensulo.Tinthu ting'onoting'onoting'ono timatha kuyandama mumlengalenga, m'madzi ampopi kapena m'mabotolo, komanso m'nyanja kapena m'nthaka.

Zotsatira za kafukufuku wam'mbuyomu pa microplastics:

Kafukufuku wa 2018 adapeza pulasitiki m'zitsanzo za ndodo pambuyo poti ophunzira adyetsedwa chakudya chanthawi zonse atakulungidwa mupulasitiki.

Pepala la 2020 lidasanthula minofu ya m'mapapo, chiwindi, ndulu ndi impso ndikupeza pulasitiki m'miyeso yonse yomwe adaphunzira.

Kafukufuku wofalitsidwa mu Marichi adapeza tinthu tating'ono ta pulasitiki m'magazi a anthu kwa nthawi yoyamba.

Kafukufuku watsopano posachedwapa wopangidwa ndi akatswiri a ku Medical University of Vienna anasonyezanso kuti kumwa madzi a m'mabotolo a pulasitiki chaka chonse kungapangitse kuti munthu adye pafupifupi 100,000 microplastic ndi nanoplastic (MNP) particles pa munthu pachaka.

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Kafukufuku wapano, komabe, adafuna kulimbikitsa ntchito yam'mbuyomu popeza ma microplastics m'mapapo am'mapapo pokolola minofu panthawi ya opaleshoni mwa odwala amoyo.

Kuwunikaku kunawonetsa kuti 11 mwa zitsanzo 13 zomwe adaphunzira zinali ndi ma microplastics ndipo adapeza mitundu 12 yosiyana.Ma microplastics awa akuphatikizapo polyethylene, nayiloni ndi resins zomwe zimapezeka m'mabotolo, zonyamula, zovala ndi nsalu.chingwe ndi njira zina zopangira.

Zitsanzo zachimuna zinali ndi ma microplastics apamwamba kwambiri kuposa zitsanzo za akazi.Koma chimene chinadabwitsa asayansi n’chakuti mapulasitikiwa anaonekera, okhala ndi ma microplastic opitirira theka opezeka m’munsi mwa mapapu.

"Sitinayembekezere kupeza tinthu tating'ono tating'ono tating'ono tating'onoting'ono m'mapapo, kapena kupeza tinthu tating'onoting'ono," adatero Sadofsky.Ankaganiza kuti tinthu tating’onoting’ono tomwe timasefedwa kapena kutsekeredwa tisanazama kwambiri.”

Asayansi amaona kuti tinthu tating'onoting'ono ta pulasitiki tochokera pa 1 nanometer kufika pa ma microns 20 kuti tipume, ndipo kafukufukuyu akupereka umboni wochuluka wosonyeza kuti pokoka mpweya umawapatsa njira yolunjika yolowera m'thupi.Mofanana ndi zomwe zapezedwa posachedwa m'mundamo, zimadzutsa funso lofunika kwambiri: Kodi zotsatira zake pa thanzi la munthu ndi zotani?

Kuyesera kwa asayansi mu labu kwawonetsa kuti ma microplastics amatha kugawanitsa ndikusintha mawonekedwe m'maselo am'mapapo amunthu, ndi zotsatira zoyipa kwambiri pama cell.Koma kumvetsetsa kwatsopanoku kumathandizira kutsogolera kafukufuku wozama pazotsatira zake.

"Microplastics yapezeka mu zitsanzo za autopsy ya anthu kale - iyi ndi phunziro loyamba lamphamvu losonyeza kuti pali microplastics m'mapapu a anthu amoyo," adatero Sadofsky.“Zimasonyezanso kuti ali m’munsi mwa mapapu.Mpweya wa m'mapapo ndi wopapatiza kwambiri, kotero palibe amene ankaganiza kuti afika kumeneko, koma afika bwino.Mawonekedwe amitundu ndi milingo ya ma microplastics omwe tidapeza tsopano atha kudziwitsa zenizeni zapadziko lapansi pazoyeserera zakuyesa kwa labotale ndicholinga chofuna kudziwa zotsatira za thanzi. "

"Ndi umboni kuti tili ndi pulasitiki m'matupi athu - sitiyenera," Dick Vethaak, katswiri wa zachilengedwe ku Vrije Universiteit Amsterdam, adauza AFP.

Kuphatikiza apo, kafukufukuyu adawonanso "kuchulukirachulukira" pazowopsa zomwe zingachitike pakumeza ndi kutulutsa ma microplastics.


Nthawi yotumiza: Apr-14-2022