Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE 72-122-97, 1973 Dec; :1-3
Continuous monitoring for carbon-monoxide in the assembly calibration, cold header, and screw machine departments of an automotive company using a portable detector shows the highest concentration to be 30 ppm in the assembly department, and the average concentration of 15 ppm in all four departments. No measurable concentrations of carbon-dioxide (124389), nitrogen- dioxide (10102440), or sulfur-dioxide (7446095) are detected in any of the four departments studied. The standard concentrations of carbon-monoxide (630080), carbon dioxide, nitrogen-dioxide, and sulfur-dioxide are 50, 5000, 5, and 5 ppm, respectively.
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