The water will be home long bacterial infection caused nitrite, nitrate and the human body has a strong binding capacity of hemoglobin, once inside the body will hinder the normal function of the operation itch, so that tissue hypoxia, nausea, vomiting and palpitation and other symptoms, severe hypoxia can also be due to the death of people, and nitrite in the human body can form nitrosamines, leading to the occurrence of some cancers.
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