An inflammatory reaction of the airways and alveoli, the mechanism of<unk>  is thought to be<unk>  rather than autoimmune in origin. The airways are exposed to high concentrations of<unk> <unk>  created by some form of disturbance or mechanical process. They can be such materials such as grain kernel fragments, bits of insects, bacteria, fungal spores, molds or chemical residues, the individual particles 0.1 to 50 µm in size. A common scenario is exposure to moldy grain, hay or woodchips, with farmers and pig workers the most common occupations affected. Those who work with grain, poultry and mushrooms also frequently report symptoms.
Organic dust toxic syndrome
Mineral dust airway disease
Chemical pneumonitis
Dust pneumonia
Pigment dispersion syndrome
Allergic bronchopulmonary aspergillosis
Occupational asthma
Reactive airway disease