Question: 01) [40 pts The data below shows the exposure duration to ethylbenzene vapor in a process pla nt for a typical work shift: The TLV-TWA

01) [40 pts The data below shows the exposure duration to ethylbenzene vapor in a process pla nt for a typical work shift: The TLV-TWA for ethylbenzene is 100 ppm. Time (min) Chlorobenzene (ppm) 327 84.38 319 23.08 154 81.76 70 42.04 a) Calculate the time-weighted average concentration based on the data given. [15 pts] b) Comment on the result obtained in part (a). [10 pts c) Explain the effect of a chemical's toxicity, exposure time, and exposure concentration on its TLV-TWA. [15 pts)

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