"ʻO ka wela o ka mahana, ʻoi aku ka nui o ka plastic i ka meaʻai a i ʻole ka wai inu," wahi a Rolf Halden, ka luna o ka Center for Healthcare Environmental Engineering ma ka Biodesign Institute ma Arizona State University.
Hoʻokuʻu ka hapa nui o nā huahana plastik i nā kemika liʻiliʻi i loko o nā mea inu a i ʻole nā meaʻai i loko o lākou. Ke piʻi aʻe ka mahana a me ka manawa o ka hoʻolaha ʻana, ʻoi aku ka haki ʻana o nā mea paʻa kemika i loko o ka plastic, a ʻoi aku ka hopena o nā kemika i ka meaʻai a i ʻole ka wai. Wahi a ka US Food and Drug Administration (FDA), he liʻiliʻi loa ka nui o nā kemika i hoʻokuʻu ʻia e hoʻopilikia i ke olakino, akā i ka wā lōʻihi, hiki i nā mea liʻiliʻi ke alakaʻi i nā pilikia nui.
ʻOmole hoʻopau i ka lā wela
ʻO ka hapa nui o nā ʻōmole wai āu e loaʻa ai ma nā hale kūʻai kūʻai nui i hana ʻia mai kahi plastik i kapa ʻia he polyethylene terephthalate (PET). Ua hōʻike ʻia kahi noiʻi 2008 e nā mea noiʻi ʻo Arizona State University i ka wikiwiki o ka wela i ka hoʻokuʻu ʻana o ka antimony mai ka plastic plastic. Hoʻohana ʻia ka Antimony e hana i nā plastics a hiki ke lilo i mea ʻawaʻawa i nā koina kiʻekiʻe.
Ma nā hoʻokolohua hoʻokolohua, ua lawe ʻia he 38 mau lā no nā hue wai i hoʻomehana ʻia i 65 degere e ʻike ai i nā pae o ka antimony i ʻoi aku ma mua o nā alakaʻi palekana. "E kōkua ana ka wela i ka uhaki ʻana i nā paʻa kemika i loko o nā plastic, e like me nā ʻōmole plastik, a hiki i kēia mau kemika ke neʻe i loko o nā mea inu i loko o lākou," i kākau ai ʻo Julia Taylor, he ʻepekema noiʻi plastics ma ke Kulanui o Missouri.
I ka makahiki 2014, ua ʻike nā kānaka ʻepekema i nā ʻano kiʻekiʻe o ka antimony a me kahi mea ʻona i kapa ʻia ʻo BPA i ka wai i kūʻai ʻia i loko o nā hue wai Kina. I ka makahiki 2016, ua ʻike nā kānaka ʻepekema i nā kiʻekiʻe kiʻekiʻe o ka antimony i loko o ka hue wai i kūʻai ʻia ma Mexico. Ua hoʻāʻo nā haʻawina ʻelua i ka wai ma nā kūlana i ʻoi aku ma mua o 65 °, ʻo ia ke kūlana ʻino loa.
Wahi a ka hui ʻoihana International Bottled Water Association, pono e mālama ʻia ka wai hue ma lalo o nā kūlana like me nā huahana meaʻai ʻē aʻe. “He kuleana koʻikoʻi ka ʻōmole wai i nā ulia pōpilikia. Inā aia ʻoe ma kahi o ka wai maloʻo, ʻaʻole pili ka wai i loko. Akā no ka mea kūʻai maʻamau, ʻo ka hoʻohana ʻana i nā ʻōmole plastik ʻaʻole ia e lawe mai i kahi pōmaikaʻi, "wahi a Halden.
No laila, ʻaʻole pono e ʻike ʻia nā hue plastik i ka mālamalama o ka lā no ka manawa lōʻihi, a ʻaʻole hoʻi e waiho ʻia i loko o ke kaʻa i ke kauwela.
Pehea e pili ana i nā ipu hoʻohana hou?
Hana pinepine ʻia nā ʻōmole wai mai ka polyethylene kiʻekiʻe (HDPE) a i ʻole polycarbonate. ʻAe ʻia ka HDPE e nā polokalamu hana hou, ʻaʻole like me ka polycarbonate.
No ka hana ʻana i kēia mau ʻōmole paʻakikī a ʻālohilohi, hoʻohana pinepine nā mea hana i ka Bisphenol-A a i ʻole BPA. ʻO ka BPA kahi mea hoʻopilikia endocrine. ʻO ia ke ʻano hiki ke hoʻopau i ka hana hormonal maʻamau a alakaʻi i nā pilikia olakino weliweli. Hoʻopili ka noiʻi i ka BPA i ka maʻi kanesa o ka umauma. Hoʻopaʻa ka US Food and Drug Administration (FDA) i ka hoʻohana ʻana i ka BPA i loko o nā ʻōmole pēpē a me nā ʻōmole non-spill. Ua pane aku nā mea hana he nui i nā hopohopo o nā mea kūʻai aku ma ka hoʻopau ʻana i ka BPA.
"ʻAʻole pono ka BPA-free i ka palekana," wahi a Taylor. Ua ʻike ʻo ia ʻo ka bisphenol-S, ka mea i hoʻohana pinepine ʻia ma ke ʻano he ʻokoʻa, he "like me ka BPA a loaʻa nā waiwai like."
Pehea ke kiʻekiʻe o nā pilikia?
"Inā inu ʻoe i hoʻokahi hue wai PET i ka lā, e pōʻino anei ia i kou olakino? ʻAʻole paha," wahi a Halden. "Akā inā inu ʻoe i 20 mau hue i ka lā, a laila ʻokoʻa loa ka nīnau o ka palekana." Hoʻomaopopo ʻo ia i ka hopena kumulative ka hopena nui loa i ke olakino.
ʻO ia iho, makemake ʻo Halden i ka ʻōmole wai metala ma mua o ka plastik hiki ke hoʻohana hou ʻia ke hele ʻo ia i ke alanui. "Inā ʻaʻole ʻoe makemake i ka plastic i loko o kou kino, mai hoʻonui ʻoe i ka lehulehu," wahi āna.