Health hazard evaluation report: HETA-90-224-L2089, Tucson Rock and Sand Company, Tucson, Arizona.
McCammon C; Lee S
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 90-224-L2089, 1990 Dec; :1-44
In response to a request from workers employed at the Tucson Rock and Sand Company, an investigation was made of high temperatures inside cement mixer cabs in the summer in Tucson, Arizona. Employees had experienced symptoms of light headedness, nausea, and fatigue at different times during the summer of 1989. Environmental samples were collected in the cabs of cement mixers in August. During stemwall and detail pours, drivers had to stay in the cab for a long time, and could not position the truck out of the direct sun. Long hours and the cumulative effect of several days of long hours in a row were also factors. The results of the study indicated that the potential for heat stress did exist. The authors recommend that, in addition to a heat stress education program, the company should provide cooled drinking water to the workers to take with them to the job sites. Monitoring equipment should also be available to take the temperature measurements needed to determine if heat stress conditions exist.
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