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镉在自然界中主要存在于锌、铜、铝碳内。这些碳石含镉量占0.1—0.5％。以锌碳石含量最高。食物中以软体动物、甲壳动物、花生、谷物含量较高,香烟含镉量高,每20支含量可达30μg,镉在车间空气浓度为0.1mg/m~3。急性中毒吸入中毒比经口大60倍,死因为肺炎和肺水肿。尸检肾皮质坏死。肾小球囊呈黑褐色以肾含镉量最多肝肾次之。
Cadmium in nature mainly exists in zinc, copper, aluminum carbon. These carbon stones contain 0.1-0.5% of cadmium. Zinc carbon content of the highest. The food contains molluscs, crustaceans, peanuts and cereals with a high content of cadmium. The content of cadmium in the cigarettes is up to 30μg per 20 and the concentration of cadmium in the workshop is 0.1mg / m3. Acute poisoning poisoning 60 times larger than the mouth, the cause of death is pneumonia and pulmonary edema. Autopsy renal cortical necrosis. Glomerular vesicles were dark brown kidney cadmium content of liver and kidney second most.