Health Hazard Evaluation Report No. HETA 82-365-1282, MGM Grand Hotel and Casino, Las Vegas, Nevada

摘要

To evaluate respiratory difficulties, sinus problems, eye irritation, and nausea occurring among the approximately 150 stagehands, wardrobe attendants, and entertainers exposed to smoke produced by pyrotechnics used during a show, on September 16 and 17, 1982, a NIOSH physician interviewed 17 concerned workers and ex-workers. Sixteen (16) had had respiratory and/or eye irritation from the smoke, and 9 reported symptoms suggestive of bronchitis. Skin irritation was also mentioned. A review of information supplied by the manufacturer of the pyrotechnics suggested the residue from the smoke would be an alkaline dust consisting of potassium carbonate and strontium hydroxide. Sulfate particulates are probably also present. After receiving an interim report on the NIOSH visit, MGM made extensive modifications in the use of pyrotechnics during the show and allowed the use of respirators by some of the stage hands. There have been improvements in air quality during the show with symptomatic improvement in most of the interviewed workers.