| Type of Toxin | Affected Organ | Signs and Symptoms | Examples |
| hepatotoxins | liver | jaundice,liver enlargement | carbon tetrachloride,
nitrosamines |
| nephrotoxins | kidney | edema, proteinuria | halogenated hydrocarbons, uranium |
| neurotoxins | nervous system | narcosis,behavioral changes, decrease in motor functions | mercury, carbon disulfide |
| agents acting on the hematopoietic system | hemoglobin,deprive the body tissues of oxygen | cyanosis, loss of consciousness | carbon monoxide, cyanides |
| agents which damage the lung | pulmonary tissue | cough, tightness in chest, shortness of breath | silica, asbestos |
| cutaneous hazards | dermal layer of the body | defatting of the skin, rashes, irritation | ketones, chlorinated compounds |
| eye hazards | eye | conjunctivitis, corneal damage | organic solvents, acids |