This October, 1951 photograph was provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH). The image depicted an Oklahoma farm worker in the process of unloading grain from an overhead shoot, and was filling a 'bin', or grain wagon below. Of importance, was the fact that the farmer was not wearing any respiratory protective devices such as a filtered breathing mask. 'Grain dust' results from having harvested, and stored a grain crop such as corn. It is subsequently liberated during the transfer processed prior to shipping. The dust, which billows up, and is sometimes inhaled by farm workers during transfer, can carry high amounts of allergens, fungi, insects, and pesticides. Inhalation of certain moulds can cause a potentially-fatal disease known as 'Farmer's Lung', also known as 'extrinsic allergic alveolitis', or 'hypersensitivity pneumonitis'.
CDC/ Barbara Jenkins, NIOSH
December 3, 2012
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