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Question
45. Air contaminant tests reveal the following concentrations over an 8-hr shift. (All values in ppm):| (PEL=150) Isobutyl acetate | (PEL = 1000) Ethyl Chloride | (PEL=300) Cyclohexane | (PEL=25) Diethylamine | |
| 8:00 - 9:00 am | 15 | 400 | 200 | 20 |
| 9:00 - 11:00 am | 10 | 200 | 100 | 10 |
| 11:00 - 1:00 pm | 10 | 300 | 150 | 10 |
| 1:00 - 4:00 pm | 5 | 100 | 50 | 5 |
Show all calculations to justify your answers to the following:
a. Is the PEL for any individual substance exceeded?
b. Is the AL for any individual substance exceeded?
c. Is the PEL for the mixture exceeded?
d. Is the AL for the mixture exceeded?
Answer
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