Osha currently enforces an eight-hour

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  1. OSHA currently enforces an eight-hour, time-weighted average (TWA) PEL of 90 dBA, and uses a 5 dB exchange rate. NIOSH recommends an eight-hour TWA exposure limit of 85 dBA and a 3 dB exchange rate. The 85 dBA limit and 3 dB exchange rate is also used as a threshold limit value (TLV) by the American Conference of Governmental Industrial Hygienists (ACGIH) as well as many European countries. Discuss using a 5 dB exchange rate versus a 3 dB exchange rate in protecting workers' hearing. Make a case for the use of either the 90 dBA PEL and 5 dB exchange rate or the 85 dBA REL and a 3 dB exchange rate. 

    Support your discussion with at least one reference. Your essay should be at least 150 words in length. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying in-text citations.
  2. Summarize the standards and guidelines published by OSHA, the ACGIH, and NIOSH that can be used to evaluate airborne exposures to hazardous materials. What are some weaknesses to the permissible exposures limits (PELs) currently enforced by OSHA? 

    Your essay should be at least 150 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying in-text citations.
  3. Compare two methods used to evaluate an employee's inhalation exposure to a hazardous material. Which method do you believe provides the most accurate measure of an employee's exposure? 

    Your essay should be at least 150 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying in-text citations.
  4. Compare and contrast the primary exposure routes for hazardous materials. How does the route of exposure influence the type of control method that you would recommend? 

    Your essay should be at least 100 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying in-text citations.
  5. Compare and contrast the different control methods that are commonly used for ionizing radiation. 

    Your essay should be at least 150 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying in-text citations.

Reference no: EM13853058

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