Xinhua News Agency, Beijing, Ndira 10 New Media Special Nhau Zvinoenderana nemishumo kubva kuUS "Medical News Nhasi" webhusaiti uye webhusaiti yepamutemo yeUnited Nations, microplastics "iri pese pese", asi haireve kutyisidzira hutano hwevanhu. .Maria Nella, mukuru weWHO Department of Public Health, Environmental and Social Determinants, akati: “Takaona kuti chinhu ichi chiri mumhoteredzo yegungwa, zvokudya, mhepo uye mvura yokunwa.Maererano neruzivo rushoma rwatinarwo, mvura yekunwa Microplastics muChina hairatidzi kutyisidzira hutano pamatanho azvino.Nekudaro, isu tinoda nekukurumidza kudzidza zvakawanda nezve mabatiro anoita microplastic pahutano. "
Chii chinonzi microplastics?
Zvimedu zvepurasitiki zvine dhayamita isingasviki 5 mm zvinowanzonzi "microplastics" (zvimedu zvine dhayamita isingasviki 100 nanometers kana kunyange diki pane mavhairasi anonziwo "nanoplastics").Iyo mini saizi inoreva kuti vanogona kushambira nyore munzizi nemvura.
Vanobva kupi?
Chokutanga pane zvose, zvidimbu zvakakura zvepurasitiki zvichapwanyika uye zvinoparara nekufamba kwenguva uye kuva microplastics;zvimwe zvigadzirwa zvemaindasitiri pachazvo zvine microplastics: microplastic abrasives yakajairika muzvigadzirwa zvakaita semazino uye kuchenesa kumeso.Kudururwa kweFiber kwemakemikari fiber zvigadzirwa muhupenyu hwezuva nezuva uye marara kubva mukukwesha kwetayi zvakare ndeimwe yemabviro.IUnited States yakatorambidza kuwedzerwa kwe microplastics mukuchengetwa kweganda uye zvigadzirwa zvekuchengeta munhu muna 2015.
Ndokupi kwaunonyanya kuungana?
Microplastics inogona kutakurwa mugungwa nemvura ine tsvina uye kumedzwa nemhuka dzemugungwa.Nokufamba kwenguva, izvi zvinogona kukonzera microplastics kuunganidza mumhuka idzi.Zvinoenderana nedata kubva kusangano re "Plastiki Ocean", anopfuura mamirioni masere matani epurasitiki anoyerera achipinda mugungwa gore rega rega.
Chidzidzo muna 2020 chakaedza marudzi mashanu akasiyana echikafu chegungwa ndokuona kuti sampu yega yega yaive nemamicroplastics.Mugore rimwe chetero, ongororo yakaedza marudzi maviri ehove murwizi ndokuona kuti 100% yemasampuli ebvunzo aive nemamicroplastics.Microplastics yakapinda mumenyu yedu.
Microplastics inoyerera ichikwira necheni yechikafu.Iyo iri pedyo nemhuka iri kumusoro kwecheni yezvokudya, iyo inowedzera mukana wekutora microplastics.
WHO inoti chii?
Muna 2019, World Health Organisation yakapfupisa tsvagiridzo yazvino pamusoro pekukanganisa kwekusvibiswa kwemicroplastics pavanhu kekutanga.Mhedziso ndeyokuti microplastics "inowanikwa kwose kwose", asi hazvirevi kutyisa hutano hwevanhu.Maria Nella, mukuru weWHO Department of Public Health, Environmental and Social Determinants, akati: “Takaona kuti chinhu ichi chiri mumhoteredzo yegungwa, zvokudya, mhepo uye mvura yokunwa.Maererano neruzivo rushoma rwatinarwo, mvura yekunwa Iyo microplastics muChina hairatidzi kutyisidzira hutano padanho razvino.Nekudaro, isu tinoda nekukurumidza kudzidza zvakawanda nezve mabatiro anoita microplastic pahutano. "WHO inotenda kuti microplastics ine dhayamita yakakura kupfuura 150 microns haigone kutorwa nemuviri wemunhu.Kutora kwezvimedu zvidiki-diki kungangove kudiki zvakanyanya.Mukuwedzera, iyo microplastics mumvura yekunwa inonyanya kuve yemhando mbiri dzezvinhu-PET uye polypropylene.
Nguva yekutumira: Jan-11-2021