Zvirwere zveItai-itai (イタイイタイ病, itai-itai byō, "zvinorwadza-zvinorwadza chirwere") raive zita rakapihwa kuwanda kwe cadmium chepfu yeToyama Prefecture, Japan, kutanga kutenderera 1912. Izwi rekuti "itai-itai chirwere" rakagadzirwa nevanhu vemuno nekuda kwekurwadziwa kwakanyanya (Japanese) vanhu vane mamiriro akanzwa musana uye majoini. Cadmium chepfu inogona zvakare kukonzeresa kupfava kwemapfupa uye kukundikana kwetsvo. Iyo cadmium yakaburitswa munzizi nemakambani emigodhi mumakomo, ayo akabudirira kumhan'arwa nekuda kwekukuvara. I-taiitai chirwere chinozivikanwa seimwe yeBig Four Pollution Zvirwere zveJapan. Mubvunzo: Kurwadziwa kwakanyanya kunonzwa kupi mumuviri?
musana uye majoini