Loaʻa i ka honua kahi pilikia nui o ka hue plastik.Ua lilo kona noho ʻana ma ka moana i mea hopohopo honua.Ua hoʻomaka kona hana ʻana i ka makahiki 1800 i ka wā i hāpai ʻia ai ka ʻōmole plastik i mea e mālama ai i ka sodas a ʻo ka ʻōmole ponoʻī kahi koho kaulana.Ua hoʻomaka ka hana i ka hana ʻana i ka ʻōmole plastik me ka hoʻopaʻa ʻana i nā kemika o ʻelua ʻano molekole kinoea a me ka ʻaila i kapa ʻia he monomers.Hoʻoheheʻe ʻia kēia mau mea hoʻohui a hoʻoheheʻe ʻia i loko o nā mole.Hoʻopiha ʻia nā ʻōmole e nā mīkini.
I kēia lā, ʻo ka mea maʻamau o ka hue plastik ʻo PET.He māmā ka PET a hoʻohana pinepine ʻia no nā ʻōmole inu.Ke hana hou ʻia, hoʻohaʻahaʻa ia i ka maikaʻi a hiki ke hoʻopau ʻia ma ke ʻano he lāʻau a i ʻole ka fiber.Pono nā mea hana e hoʻohui i ka plastic puʻupaʻa e mālama i ka maikaʻi like.ʻOiai hiki ke hana hou ʻia ka PET, ʻo kona ʻaoʻao nui ʻo ia ka paʻakikī o ka hoʻomaʻemaʻe.ʻOiai he mea nui ka hana hou ʻana i ka PET no ke kaiapuni, ua lilo kēia plastic i mea hoʻohana nui loa no nā hue.
ʻO ka hana ʻana o PET kahi hana ikaika nui a me ka wai.Pono kēia kaʻina hana i ka nui o nā wahie mōʻalihaʻi, kahi e lilo ai ia i mea haumia loa.I ka makahiki 1970, ʻo ʻAmelika ka mea kūʻai aila nui loa ma ka honua.I kēia lā, ʻo mākou ka mea lawe aila nui loa ma ka honua.A ʻo 25% o nā hue plastik a mākou e hoʻohana ai i hana ʻia mai ka ʻaila.A ʻaʻole kēia i helu ʻia no ka ikehu i hoʻohana ʻia no ka lawe ʻana i kēia mau ʻōmole.
ʻO kekahi ʻano o ka ʻōmole plastik ʻo HDPE.ʻO HDPE ka mea maʻamau loa o ka plastic.Hāʻawi ia i kahi pale wai maikaʻi.ʻOiai ʻaʻole i loaʻa i ka HDPE ka BPA, ua manaʻo ʻia he palekana a hiki ke hana hou ʻia.ʻIke ʻia ka ʻōmole HDPE a hāʻawi iā ia iho i ka hoʻonaninani kilika.He kūpono ia no nā huahana me nā mahana ma lalo o 190 degere Fahrenheit akā ʻaʻole kūpono no nā aila pono.Pono e hoʻohana ʻia kēia mau ʻōmole plastik no nā meaʻai a me nā mea palaho ʻole, e like me ka wai.
Aia kekahi o nā ʻōmole wai kaulana loa i ka BPA, kahi hui synthetic i ʻike ʻia e hoʻopau i ka ʻōnaehana endocrine.Hoʻopilikia ia i ka hana hormone o ke kino a ua hoʻopili ʻia i ka piʻi ʻana o nā maʻi maʻi like ʻole i nā keiki.No laila, ʻo ka inu ʻana i ka wai mai nā ʻōmole plastik ʻaʻole ia he pilikia olakino wale nō, akā kōkua pū kekahi i ka wāwae o ka ʻōmole plastik.Inā makemake ʻoe e pale i kēia mau mea ʻawaʻawa, e koho ʻoe i ka hue wai ʻole o ka BPA a me nā mea hoʻohui plastik ʻē aʻe.
ʻO kekahi hopena maikaʻi loa i ka pollution plastic ʻo ke kūʻai ʻana i nā ʻōmole wai hiki ke hoʻohana hou ʻia.Hōʻike ka noiʻi ʻana i ka piʻi ʻana o ke kūʻai ʻana o nā ʻōmole hoʻopihapiha hiki ke mālama i ka 7.6 biliona ʻōmole plastik mai ke komo ʻana i ke kai i kēlā me kēia makahiki.Hiki i ke aupuni ke kaupalena a pāpā paha i nā ʻōmole plastik hoʻohana hoʻokahi e hōʻemi i ka nui o ka haumia a lākou e hoʻokuʻu ai i ka moana.Hiki iā ʻoe ke hoʻokaʻaʻike aku i kāu poʻe kālaiʻāina kūloko a hōʻike iā lākou e kākoʻo ana ʻoe i ka hana e hōʻemi i ka plastic hoʻohana hoʻokahi pono ʻole.Hiki iā ʻoe ke noʻonoʻo e lilo i lālā o kāu hui kaiaulu kūloko e komo i kēia hana.
ʻO ke kaʻina hana o ka ʻōmole plastik e pili ana i kekahi mau pae.ʻO ka mea mua, ua hoʻomehana ʻia nā pellet plastik i loko o kahi ʻāpana injection.A laila hoʻonui ka ea kiʻekiʻe i nā pellet plastik.A laila, pono e hoʻomaʻalili koke nā ʻōmole e mālama i ko lākou ʻano.ʻO kahi koho ʻē aʻe ʻo ke kaʻapuni ʻana i ka nitrogen wai a puhi paha i ka ea ma ka lumi wela.ʻO kēia mau kaʻina hana e hōʻoia i ka paʻa o ka hue plastik a ʻaʻole e nalowale kona ʻano.Ke hoʻomāʻalili, hiki ke hoʻopiha ʻia ka ʻōmole plastik.
He mea nui ka hana hou ʻana, akā ʻaʻole hana hou ʻia ka hapa nui o nā ʻōmole plastik.ʻOiai ke ʻae nei kekahi mau kikowaena hana hou i nā ʻōmole i hana hou ʻia, ʻo ka hapa nui e pau i nā pae ʻāina a i ʻole nā moana.Aia i loko o ka moana ma waena o 5 a me 13 miliona mau toni plastik i kēlā me kēia makahiki.Hoʻokomo nā mea kai i ka plastic a komo kekahi o ia mea i ke kaulahao meaʻai.Hoʻolālā ʻia nā ʻōmole plastik i mea hoʻohana hoʻokahi.Eia nō naʻe, hiki iā ʻoe ke paipai i nā mea ʻē aʻe e hana hou a koho i nā koho hiki ke hoʻohana hou ʻia.
Hana ʻia nā ʻōmole plastik i nā mea like ʻole.ʻO ka hapa nui o nā mea maʻamau he PE, PP, a me PC.ʻO ka maʻamau, ʻo nā ʻōmole i hana ʻia me ka polyethylene he aniani a opaque paha.ʻOi aku ka opaque o kekahi polymers ma mua o nā mea ʻē aʻe.Eia naʻe, he opaque kekahi mau mea a hiki ke hoʻoheheʻe ʻia.'O ia ho'i, 'oi aku ka nui o ke kumu kū'ai o ka'ōmole plastik i hana 'ia mai ka plastic recyclable.Eia nō naʻe, ʻoi aku ka maikaʻi o ka hana ʻana i ka plastic i ke kumu kūʻai.
Ka manawa hoʻouna: Jun-07-2022