He aha te mea o te ngira tuku noa

Ko te ngira ngira he PP, he mea motuhake te k4912 mo te maimoatanga hauora, a he mea hanga na Yanshan Petrochemical. Kaore au i te tino mohio ki te putea whaowhia. Ko te tauira whaipainga e pa ana ki tetahi taonga rongoa tuku noa e whakamahia ana mo te whaowhia i roto i te toto, ka whakahoroa kia noho he hongere i waenga i te uaua me te rongoa wai. I te nuinga o te waa he ngira whakaroto, he potae whakamarumaru, he ngongo whaowhia, he tātari rongoa wai, he kaiwhakarite tere o te rere, he kohua whakamakuku, he taputapu wero pounamu, he paipa urunga hau me te tātari rangi. Ko nga huinga whaowhia tuku iho he mea hanga ki te PVC. Ko te polyolefin thermoplastic elastomer (TPE) mahi teitei e kiia ana he taonga haumaru ake, teitei ake hoki mo te hanga huinga whaowhia tuku. Inaianei he rauemi karekau he DEHP kei te whakatairangatia puta noa i te motu. I raro i te mahi a te pehanga hau, ka rere te wai i roto i te pounamu ki roto i te peere maturuturu i te taha o te ngongo whaowhia angiangi. Ina nui ake te pehanga wai o te peere maturuturu i te pehanga venous, ka rere te wai i roto i te pounamu ki roto i te uaua i te taha o te ngongo.