Explore BrainMass

OSHA Permissible Exposure Limits

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

Solution Summary

This solution explains how to determine if methanol, nitric oxide, and sulfur dioxide exposures over the course of a day exceed OSHA permissible exposure limits. It also explains how replacing methanol with ethanol will affect these exposure limits.