Muri Filipine, ubworozi bw'amafi ni urwego rw'ingenzi rutanga umusanzu ukomeye mu gutanga ibiribwa no mu bukungu bw'abaturage. Kubungabunga ubuziranenge bw'amazi ni ingenzi ku buzima no gukura kw'ibinyabuzima byo mu mazi. Gushyiraho ikoranabuhanga rigezweho, nka pH y'amazi, amashanyarazi ...