Iitoti zokutya zinexesha elide kunye nesithethe, njengoko ukugquma kwicala langaphakathi-umzimba unokukhusela imixholo kwitoti ekungcoleni kwaye uyigcine ngexesha elide lokugcinwa, thatha i-epoxy kunye ne-PVC njengemizekelo, ezi zimbini. i-lacquers isetyenziselwa umgca wecala elingaphakathi le-can-body ngenjongo yokuthintela ukubola kwesinyithi ngokutya okune-acidic.
I-BPA, emfutshane kwi-Bisphenol A, yinto yokufaka i-epoxy resin coating. Ngokutsho kweWikipedia, kukho ubuncinane amaphepha enzululwazi ali-16,000 apapashwe ngamashishini afanelekileyo malunga nomba weziphumo zempilo ze-BPA kunye nomxholo wengxoxo ende yoluntu neyenzululwazi. Uphononongo oluyityhefu lwekinetic lubonise ukuba isiqingatha sobomi bebhayoloji be-BPA kubantu abadala malunga neeyure ezi-2, kodwa abuqokeleli phakathi kwabantu abadala ngaphandle kokuvezwa kwe-BPA kuxhaphakile. Enyanisweni, i-BPA ibonisa ubutyhefu obuphantsi kakhulu njengoko kubonisiwe yi-LD50 yayo ye-4 g/kg (impuku). Ezinye iingxelo zophando zibonisa ukuba: ine-irritant encinci eluswini lomntu, isiphumo esincinci kune-phenol. Xa ifakwe kwixesha elide kwiimvavanyo zezilwanyana, i-BPA ibonisa umphumo onjenge-hormone onokuchaphazela kakubi ukuzala. Nangona kunjalo, iziphumo ezibi ebantwini ezisongela impilo yabantu azizange zivele okwangoku, ngokuyinxenye ngenxa yomthamo ophantsi wokuthatha.
Ngokuqwalasela ukungaqiniseki kwenzululwazi, amagunya amaninzi athathe amanyathelo okujongana nengxaki yokunciphisa ukuvezwa kwisiseko sokhuseleko. Kwathiwa i-ECHA (ifutshane kwi-'European Chemicals Agency') ibeke i-BPA kuluhlu lwezinto ezixhalabisa kakhulu, ngenxa yeempawu ze-endocrine ezichongiweyo. Ngaphezu koko, ngenxa yengxaki yeentsana zinokujongana nomngcipheko omkhulu kulo mba, okukhokelela ekuvalweni kokusetyenziswa kwe-BPA kwiibhotile zabantwana kunye nezinye iimveliso ezifanelekileyo yi-US, Canada, kunye ne-EU phakathi kwezinye.
Ixesha lokuposa: Jul-30-2022
