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Nūhou

No ke aha e koho ai i ka ʻeke kī kīna?

I kēia mau lā, ua hōʻike ʻia kahi haʻawina mai ke Kulanui ʻo McGill ma Kanada e hoʻokuʻu ana nā ʻeke kī i nā ʻumi piliona o nā ʻāpana plastik i nā wela kiʻekiʻe.Ua manaʻo ʻia ʻo kēlā me kēia kīʻaha kī i brewed mai kēlā me kēia ʻeke kī he 11.6 billion microplastics a me 3.1 billion nanoplastic particles.Ua paʻi ʻia ke aʻo ʻana ma ka American Journal of Environmental Science and Technology ma Kepakemapa 25.
Ua koho malū lākou i ʻehā ʻeke kīʻaha: ʻelua ʻeke nylon a me ʻelua ʻeke PET.ʻO ka mea kūikawā, hiki ke hoʻohana ʻia ʻo PET i ka pae wela o 55-60 ℃ no ka manawa lōʻihi, a hiki ke kū i ka wela kiʻekiʻe o 65 ℃ a me ka mahana haʻahaʻa o - 70 ℃ no ka manawa pōkole, a he liʻiliʻi ka hopena i kona mau waiwai mechanical ma kiʻekiʻe a haʻahaʻa wela.E kiola i ke kī, e holoi i ka ʻeke me ka wai maʻemaʻe, a laila e hoʻohālike i ke kaʻina hana o ka brewing kī, a hoʻoinu i ka ʻeke ʻole me ka wai wela 95 ℃ no 5 mau minuke.ʻIke ʻia ʻo ka wai a mākou e hana ai i ke kī he wai paila, a ʻoi aku ka kiʻekiʻe o ka mahana ma mua o ka hoʻohana ʻana o PET.
Hōʻike ka ʻike o McGill e hoʻokuʻu mua ʻia ka nui o nā ʻāpana plastik.Hiki i ke kīʻaha kīʻaha ke hoʻokuʻu ma kahi o 11.6 biliona microns a me 3.1 biliona nanometer o nā ʻāpana plastik!Eia kekahi, inā he mea ʻawaʻawa kēia mau mea palaka i hoʻokuʻu ʻia i nā meaola.No ka hoʻomaopopo ʻana i ke ʻano o ka ʻawaʻawa, ua hoʻohana nā mea noiʻi i nā ʻauʻau wai, kahi invertebrate, ʻo ia ke kumu hoʻohālike i hoʻohana ʻia no ka loiloi ʻana i nā toxins i ke kaiapuni.ʻO ke kiʻekiʻe o ka ʻeke kī, ʻoi aku ka liʻiliʻi o ka ʻauʻau ʻauʻau wai.ʻOiaʻiʻo, ʻoi aku ka ʻino o ka metala kaumaha+plastic ma mua o nā ʻāpana plastik maʻemaʻe.ʻO ka hope, ʻaʻole i make ka peʻa wai, akā, ua ʻino.Ua hoʻoholo ke aʻo ʻana inā pili ka ʻeke kī i nā ʻāpana plastik i ke olakino kanaka pono e noiʻi hou aku.

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Ka manawa hoʻouna: Feb-14-2023