Akpa tii na-enweghị plastik?Ee, ị nụrụ nke ahụ ziri ezi…
Tonchant emeputa 100% plastic free filter akwụkwọ maka teabags,Mụtakwuo ebe a
Iko tii gị nwere ike ịnwe irighiri ihe microplastic ijeri iri na otu na nke a bụ n'ihi otu esi arụzi akpa tii.
Dị ka ọmụmụ Canada na nso nso a na Mahadum McGill si kwuo, ịkwanye akpa tii rọba na okpomọkụ nke 95 Celsius C na-ewepụta ihe dị ka ijeri microplastics ijeri 11.6 - obere mpempe plastik n'etiti 100 nanometers na 5 millimeters n'ogo - n'ime otu iko.Dị ka ihe atụ, e jiri ya tụnyere nnu, bụ́ nke a chọpụtakwara na ọ nwere rọba, iko nke ọ bụla nwere ọtụtụ puku ugboro ka ukwuu nke rọba, na microgram 16 kwa iko.
Ọnụnọ na-abawanye nke micro- na nano-size plastics na gburugburu ebe obibi na nri nri bụ nchegbu na-eto eto.Ọ bụ ezie na ndị na-azụ ahịa na-eche echiche na-akwalite mbelata nke plastik a na-eji otu eme ihe, ụfọdụ ndị na-emepụta ihe na-emepụta ngwugwu rọba ọhụrụ iji dochie akwụkwọ eji eme omenala, dị ka plastic teabags.Ebumnobi nke ọmụmụ a bụ iji chọpụta ma plastic teabags nwere ike ịhapụ microplastics na/ma ọ bụ nanoplastics n'oge usoro mgbada.Anyị na-egosi na ikwaba otu teabag rọba na okpomọkụ (95 Celsius) na-ewepụta ihe dị ka ijeri microplastics ijeri 11.6 na ijeri nanoplastics 3.1 n'ime otu iko mmanya.Ngwakọta nke ụmụ irighiri ihe ndị a tọhapụrụ dabara na teabags mbụ (nylon na polyethylene terephthalate) site na iji Fourier-transform infrared spectroscopy (FTIR) na X-ray photoelectron spectroscopy (XPS).Ọkwa nke nylon na polyethylene terephthalate ndị ewepụtara na nkwakọ ngwaahịa tiabag bụ ọtụtụ iwu dị elu karịa ibu rọba nke akọwara na nri ndị ọzọ.Ntụle toxicity invertebrate nke izizi na-egosi na ikpughe na naanị irighiri ihe ndị a napụtara na teabags butere mmetụta omume na mmepe dabere dose.
Oge nzipu: Nov-09-2022