29 Jul Industrial Hygiene Unit VIII*****Plagiarism Free *****A++ Rated Tutorial Already***** Use As A Guide Paper*****
1) You are an industrial hygienist conducting personal sampling on a worker who is overseeing a production process involving use of acetone (Note: The Occupational Safety and Health Administration has established a Permissible Exposure Limit of 1000 parts per million (ppm) of acetone). You are able to measure the following exposures:
700 ppm for 3 hours
1300 ppm for 2 hours
900 ppm for 3 hours
What is the calculated TWA? What would you tell plant management in terms of exposure to acetone and compliance with the PEL?
2) Please solve the following problem, indicating your response on a Word document and submitting the document via File Upload.
Using the following formula, solve the problem below, and show your work.
TWA = CaTa + CbTb + … + CnTn
8
| TWA | = | Time-Weighted Average |
| Ca | = | Concentration of contaminant during the sampling period “a“ |
| Ta | = | Time of sampling period “a“ |
| Cb | = | Concentration of contaminant during the sampling period “b” |
| Tb | = | Time of sampling period “b“ |
| Cn | = | Concentration of contaminant during the sampling period “n“, where “n” is the last of a series of contaminants |
| Tn | = | Time of sampling period “n“ |
Note: All concentrations are in parts contaminant per million parts of air or milligrams of contaminant per cubic meter of air.
Air Sampling Problem: You are an industrial hygienist that is conducting personal sampling on a worker who is overseeing a production process involving use of toluene (Note: The Occupational Safety and Health Administration has established a Permissible Exposure Limit of 200 parts per million (ppm)). You are able to measure the following exposures:
500 ppm for 1 hour
100 ppm for 4 hours
225 ppm for 3 hours
What is the calculated TWA? What would you tell plant management in terms of exposure to toluene and compliance with the PEL?
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.