What are the manifestations of occupational poisoning?
The nervous system. Chronic intoxication have early common neurasthenia syndrome and mental symptoms, generally functional changes. After disengaging from contact, it can gradually restore. Lead and manganese poisoning can damage motor nerve, sensory nerve, and cause peripheral neuritis. Brain edema can occur in severe poisoning.
Respiratory system. Inhalation of certain gases can cause asphyxia. Long-term inhalation of irritating gases can cause chronic respiratory inflammation, rhinitis, septal perforation, pharyngitis, bronchitis and other upper respiratory inflammation. Inhaling large amounts of irritating gas can cause serious respiratory diseases such as chemical pulmonary edema and pneumonia.