Osha permissible exposure limits


Assignment:

Q1. Suppose that an industrial process produces the following air-contaminant concentrations for the periods shown:

Period    Methanol(ppm)    Nitric Oxide(ppm) Sulfur Dioxide
8AM - 10 AM    50    5 0
10AM - 11 AM    150    10 1
11 AM -1 PM    100    5 1
1 PM -4 PM`    200    10 1

Taken collectively, would these concentrations exceed the OSHA permissible exposure limits? Explain.

Q2. Suppose that the solvent ethanol could serve to replace the methanol in this process, but at the expense of double the concentrations of the solvent in the atmosphere. Would this help or hinder matters? Explain.

Your answer must be typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format.

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Chemistry: Osha permissible exposure limits
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