Cadmium would cause irritation for respiratory, long-term exposure can cause disease as loss of sense of smell, macular or gums had become a yellow circle, cadmium compounds can not easily be absorbed in the intestine, but can be absorbed into the body through breathing, accumulation in the liver or kidney cause obvious damage to the kidneys. Especially with the bone metabolic disruption, resulting in osteoporosis, atrophy, deformation and a series of symptoms.