多种食物中含微量镉,一般无损健康。而职业接触者,由于长期吸入大量氧化镉(金属镉本身无毒,而在炼熔时产生氧化镉,毒性很大),刺激呼吸道粘膜,续而发生化学性肺水肿,以及肾脏、肝脏、胰腺、胆囊、骨骼等组织损害,其可在体内存留3—9年之久。现将389例镉作业工人的眼部改变报告如下: A variety of foods containing trace amounts of cadmium, generally non-destructive health. Occupational exposure to long-term inhalation of large amounts of cadmium oxide (metal cadmium itself is non-toxic, while the production of cadmium oxide melting, highly toxic), to stimulate the respiratory mucosa, continued chemical pulmonary edema, and kidney, liver, pancreas , Gallbladder, bone and other tissue damage, which can survive in the body 3-9 years. Now 389 cadmium workers eye changes reported as follows: