Where this is not possible, exposure should be minimized through engineering controls such as ventilation and enclosures of processes. Education of workers is also very important. Proper handling procedures, avoidance of spills and good housekeeping reduce the occurrence of occupational asthma. Some of the occupations where asthma has been seen are listed in the following tables. It should be noted that the lists of occupational substances and microbes which can cause asthma are not complete.
New causes continue to be added.
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