Zinc (Zn)
Contamination of food and drinking water. Zinc oxide compounds often get mixed in water or food easily. Especially in areas that are close to the mineral zinc. When the body is the substance and accumulated for a long time to cause liver enzyme abnormalities, birth and experience symptoms, bleeding in the digestive tract by the national environment Board, vol. 8 (2537 (1994)) were given zinc contamination in water not exceeding 1 mg/l. Toxicity in the gastrointestinal tract can be caused by eating zinc corrosion upper gastrointestinal tract, including the esophagus and stomach. The inflammation Severe abdominal pain and it can cause gastrointestinal atresia have.