What are the symptoms of occupational asthma?
Occupational asthma often begins with a cough or other symptoms of asthma such as wheezing and chest tightness, which may occur during exposure to the irritant at work. Sometimes, occupational asthma symptoms do not appear until several hours after exposure, even when at home after work . At the onset of the disease, symptoms may subside during weekends and holidays. However, during the later stages of occupational asthma, asthma symptoms may begin occurring during exposure to other common asthma triggers such as smoke, dust and temperature changes.
What substances cause occupational asthma?
Although every day develop new substances that can cause occupational asthma , some irritants in the workplace air (according to the American Lung Association, include:
|Irritating||Examples||Type of occupations / environments at risk|
|Chemical dusts and vapors||Isocyanates, trimellitic acid, acid phallic||Manufacturers of foam mattresses and upholstery, insulation, packaging materials, plasticizers, polyurethane paint|
|Animal substances||Polvos of bacteria, dander, hair, dust mites, polvos protein, small insects||Farms, animal trainers, kennel workers, jockeys, veterinarians,|
|Organic dusts||Cereals, coffee, flour, grains, tea||Millers, bakers and other food processors|
|Dusts from cotton and textile industry||Workers in cotton and textile industry workers|
|Metals||Chromium, nickel sulfate, platinum, soldering fumes||Manufacturers of metals and refineries|