亚硝酸盐(NO2-)是食品添加剂中毒性最强的物质之一,人体摄入过量的亚硝酸盐,轻则会出现头痛、头晕、无力、胸闷、气短、心悸、恶心、呕吐、腹痛、腹泻及口唇、指甲、全身皮肤黏膜发绀等症状,严重者出现烦躁不安、精神萎靡、反应迟钝、意识丧失、惊厥、昏迷、呼吸衰竭甚至死亡。 Nitrite (NO2-) is one of the most toxic substances in food additives. It can cause headache, dizziness, weakness, chest tightness, shortness of breath, palpitations, nausea, vomiting, abdominal pain, Diarrhea and lips, nails, cyanosis and other symptoms of mucocutaneous mucosa, severe irritability, apathetic, unresponsive, loss of consciousness, convulsions, coma, respiratory failure and even death.