Asthma in the workplace

Occupational asthma (OA) refers to asthma that occurs as a result of workplace inhalation exposures. Most workers exposed to antigens and irritants will not develop OA. Although much more study focused on OA needs to be completed, it can be stated with some surety that identification of IgE-mediated sensitization and bronchial hyperresponsiveness occurs with OA. Also, extreme short-term chemical exposures versus a cumulative effect of chemical exposures will need continued evaluation to determine tolerable levels that do not cause harm. Health care providers often seek guidance from NIOSH, which sponsors ongoing research and training related to workplace exposures.