1. A worker is simultaneously exposed to 8 hours of exposure to 40 ppm ethyl benzene, 50 ppm xylene, 40 ppm n-hexane, and 5 mg/m³ titanium dioxide.  Using OSHA's PELs, is the worker overexposed?  Explain why, show your calculations, and provide the applicable OSHA PELs.

Answer rating: 100% (QA)

To determine if the worker is overexposed to these substances we need to compare the exposure amounts to the Permissible Exposure Limits PELs as set b... View the full answer