ʻO nā metala koʻikoʻi he pūʻulu o nā mea e pili ana i nā metala a me nā metalloids e like me arsenic, cadmium, chromium, cobalt, copper, hao, lead, manganese, mercury, nickel, tin and zinc. Ua ʻike ʻia nā ion metala e hoʻohaumia i ka lepo, ka lewa a me nā ʻōnaehana wai a he mea ʻona ...
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