Microplastic li cas?
Microplastics thiab nanoplastics: kev txhawj xeeb txog kev noj qab haus huv loj hlob
Dab tsi yog microplastics thiab nanopastics?
Microplastics: Cov yas me me ncuav dua los ntawm1μm rau 5 hliloj me.
Lub nanoplastics: Txawm tias me me ua kom cov khoom, ntsuasTsawg dua 1μm(1, {000} lub sij hawm me dua li ib millimeter).
Vim li cas nanoplastics ntau txaus ntshai?
Vim lawv cov ultra-me me, nanopastics tuaj yeem:
Kev nkag rau kev chim siab rau kev nkag rau kev nkag rau lub roj ntsha (piv txwv li, ntawm tes mis).
Nkag rau hauv cov hlab ntshav thiab cov kab mob qog ntshav.
Tshaj tawm thoob plaws lub cev, accumulating hauv cov plab hnyuv siab raum thiab cov ntaub so ntswg.
Qhov no ua rau lawv muaj kev puas tsuaj ntau dua li microplastics, nrog rau cov kev pheej hmoo noj qab haus huv uas tseem nyob hauv kev kawm.
Qhov chaw ntawm tib neeg kis
Microplastics yog ubiquitous hauv lub neej niaj hnub:
Cov chaw: Cov Hnab Yas Ntim, Cov Khoom Siv Hluav Taws Xob, Cov Tshuaj pleev ib ce, thiab cov khib nyiab thiab cov khib nyiab yas.
Khoom Noj Khoom Haus: Pom nyob rau hauv nqaij ntses (ntses, plhaub) vim dej hiav txwv paug. Thaum noj, cov lus no hloov mus rau tib neeg.
Yoo mov: Thawj qhov xwm txheej ntawm txoj kev. Kev tshawb fawb kwv yees kwv yeesTus neeg nruab nrab noj haus 5 grams microplastics txhua lub lim tiam-Qhov rau qhov nyhav ntawm daim npav rho nyiaj.
Micro / nanoplastics muaj ntau yam hauv peb ib puag ncig thiab khoom noj.
Nanoplastics ua rau muaj kev pheej hmoo ntau dua vim yog lawv lub peev xwm los ua rau muaj kev lom neeg roj ntsha.
Txo cov kev siv yas thiab kev txhim kho cov kev tswj pov tseg yog qhov tseem ceeb rau kev sib kis.
Cov khib nyiab yas yog qhov chaw loj ntawm microplastics. Cov txheej txheem ntuj los yog tib neeg kev ua si tawg cov ntaub ntawv yas thiab lwm cov khoom pov tseg hauv lub neej txhua hnub, thiab cov khib nyiab no cuam tshuam rau cov microplastics rau ib puag ncig.
Ib qho ntxiv, kev kho kom huv, ntxhua khaub ncaws txeeb chaw, thiab cov khoom lag luam tus kheej kuj tseem muaj cov qauv ntawm microplastics.Thaum koj ntsib slogans nyiam"Kev ntxuav kom tob, kev tu kom tob"On tu cov khoom, cov khoom ntawdyuav muaj microplasticsCov. Piv txwv li,Cov khoom siv uas nquag hu ua "cov hlaws dai mos"-Cov rau exfoliate tuag tawv nqaij thiab ntxuav pores-yog ib hom microplastic. Tsis tas li, tshuab ntxhua khaub ncaws ua rau muaj cov khib nyiab microfiber muaj cov khib nyiab microris, lwm qhov tseem ceeb ntawm microplastics.Cov kws tshawb nrhiav kev soj ntsuam cov khoom pov tseg los ntawm cov tshuab ntxhua khaub ncaws
Dab tsi ib puag ncig kev phom sij ua rau cov khoom loj ntawm microplastics ua? Thawj tus neeg raug tsim txom yog cov tsiaj muaj dej, xws li ntses.Cov kev tshawb fawb tsis ntev los no ntawm cov tub rog hluav taws xob pom tias cov lus noRaug hem rau cov ntses ua kom muaj kev sib deev: ntses tias muaj cov huab plasticsraug kev txom nyem stunted kev loj hlob, kev raug mob sab hauv, lossis kev coj cwj pwm txawv txavCov. Piv txwv li, cov ntses hluas uas nquag pub rau algae thiab planktonpib siv microplastics hloov, cuam tshuam lawv cov zaub mov ntuj.Qhov no ua rau kev loj hlob qeeb, ua rau kom nws loj hlob me dua li tus cwj pwm ib txwm muaj ntses thiab kev coj ua tsis ncaj ncees.Txawm yogLub cev muaj zog uas tseem tsis meej, qhov kev puas tsuaj yog muaj peev xwm.Ntxiv mus, microplastics 'Thaj chaw loj thaj chaw ua rau lawv muaj txiaj ntsig zoo ntawm adsorbing cov hlau thiab cov organic paug ntawm ib puag ncig.Thaum cov toxin-laden microplasticsNkag mus rau cov khoom noj khoom noj, lawvtuaj yeem ua rau muaj kev phom sij thiab ntev ntev.
Piv nrog rau cov tub rog ib puag ncig, hauv cov dej ntshiab uas tsis muaj neeg muaj kev sib cuag dua.Nyob rau hauv xyoo tsis ntev los no, ib pab neeg coj los ntawm cov kws tshawb fawb wang jun los ntawm Wuhan Botanical Garden ntawm Kev Tshawb FawbTau ua kev tshawb fawb ntawm cov microplastics me me.Lawv tshawb xyuas microplastic kuab paug nyob rau hauvloj thiab me me dej ntwsHla Wuhan thiab peb qhov chaw ntawm cov chaw uas muaj dej num.Lawv tshawb pom qhia meej spatial spatials variated nyob rau hauv cov chaw qias neeg, qhia txog tib neeg kev ua yog ib qho tseem ceeb tsav tsheb ntawm cov microplastic ntau lawm.
Hauv kev kawm txog microplastic adsorption, pab neeg piv tau peb hom microplastic-polystyrene, polyvinyl chloride, thiab polyethylene-Adsorb cov kuab paug pietants. Lawv pom tias microplastic adsorption ntawm pyrenee (r² {{0Kev tshawb fawb noXav tau peb txoj kev nkag siab txog yuav ua li cas microplastics cuam tshuam rau cov kuab paug thauj hauv cov khoom siv ua suab.
Lwm cov kev tshawb fawb tau pom microplastic muaj ntau hauv clams los ntawm Taihu Lake los yog ntau pua ntau dua nyob rau hauv ib puag ncig cov neeg poob siab. Tshaj dhau ntawm ecosystems, microplastics kuj tseem infiltrate cov chaw ib puag ncig.Hauv 2017, cov kws tshawb nrhiavKev tshuaj ntsuam kev txheeb xyuas cov av loj hauv cov av orchard avthiab nrhiavQib siab ntawm micropleplastics nyob rau hauv lawv lub cev, nrog kev siv nyiaj tsawg dua cov nqi tuag tuag. Yog tias cov nqaij qaib tau haus cov cua no, thiab tib neeg tom qab ntawd noj cov qaib, dab tsi yog qhov muaj peev xwm tshwm sim?
Microplastics muaj ntau yam hauv peb ib puag ncig.Cov ntawv ceeb toom tau lees tias lawv muaj nyob hauvCov lus ntsev thiab, ntau dua qhov ceeb toom, txawm tias coj mus rhaub dej. Qhov no yog unsurprise.Thaum dej phwj tuajob theem ntawm kev kho mob tom qab muab pov tseg, xws liminuscule parse thaum kawg Evade Capture. Thaum tso tawm rau hauv ib puag ncig, microoplastics inevitably ncig mus rau tib neeg!
Kev tshawb fawb tam sim no ntawm microplastic toxicity tsom rau cov ntses thiab invertebrates, nrog rau kev kawm tsawg dua ntawm tib neeg rau tib neeg. Txawm li cas los xij, lub synergistic toxicity ntawm microplastics ua ke nrog lwm cov pa phem tsis tuaj yeem pom.Ua raws li cov nqa khoom, microplasticsKho maj mam khi rau cov paugxws li cov hlau hnyav, polycyclic aromatic hydrocarbons (PAHS), thiab Polychlorinated Biphenyls (PCBs) -Cov tshuaj yeeb uas paub tias yog kev ua phem rau tib neeg kev noj qab haus huv. Cov viedss uas muaj cov kuab paug no ua rau muaj kev pheej hmoo, tshwj xeeb tshaj yog vim hais tias microplastics 'Cov thaj chaw thaj chaw ua kom muaj kev txhim kho lawv lub peev xwm los ua kom ntau thiab cov co mus rau cov co co rau hauv cov khoom noj khoom haus.