Research on Chronic Diseases

Occupational Airborne Exposure

Occupational exposure to air and the incidence of respiratory symptoms and asthma. Whenever people inhale airborne dust at work, they endanger occupational disease. Year after year, in both developed and developing countries, excessive exposure to dust causes illness, temporary and permanent disability and death. The occupational airborne exposure limit value for a given material or class of materials is the upper limit for the acceptable concentration of a hazardous substance in the air at the workplace. It is usually determined by the competent national authorities and enforced by legislation to protect safety and health at work. Dust in the air, air pollutants can occur in gaseous form (gases and vapors) or as aerosols that include airborne dust, sprays, mists, smoke and fumes. Ventilation is used to control airborne hazards in the form of dust, fibers, mist, vapors, gases and vapors. Two ways to use ventilation to control pollutants are general dilution ventilation and a local exhaust system.    

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