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OSHA Hazard Information Bulletins
May 11, 1984
MEMORANDUM FOR REGIONAL ADMINISTRATORS
On March 14, a Health Hazard Information Bulletin was sent to you regarding substances used as grain fumigants. Since that time, the U.S. Department of Agriculture (USDA) export grain inspectors have made inquiry to Region X about the health effects of prolonged exposure to anhydrous ammonia. Anhydrous ammonia is being used as a grain fumigant by some grain shippers from Montana. The USDA inspectors were complaining of the irritant effects of ammonia released form the grain loads during inspection of incoming rail cars. Because of this recent information, we are amending the March 14th list to include anhydrous ammonia as a grain fumigant.