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)).
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…