Purchase Solution

OSHA Permissible Exposure Limits

Not what you're looking for?

Ask Custom Question

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

Purchase this Solution

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.

Solution Preview

Please see the attached file for the complete solution.
Thanks for using BrainMass.

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 ...

Purchase this Solution


Free BrainMass Quizzes
Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.