Imagine you are a safety officer who has to choose which exchange rate is preferable to use at your organization. OSHA explains the use of the 5 dBA exchange rate as a means to account for the time during a workday that the employee is not exposed to noise, like breaks. ACGIH and NIOSH recommend a 3 dBA exchange rate because noise energy exposure actually doubles every 3 dBA. Question 2 OSHA uses a 5 dBA exchange rate, meaning that the allowed exposure time is cut in half for every increase in exposure of 5 dBA. Your homework assignment should be a minimum of two pages in length.
Discuss whether you believe any of the individual metal fume exposures or the combined exposure exceeds an OSHA PEL or an ACGIH TLV. Use the equation in 1910.1000(d)(2)(i) to calculate the equivalent exposure (in relation to OSHA PELS) for the metal fumes with similar health effects based on the “Result” column in the table above. Assume that each listed metal can cause respiratory irritation. Identify the types of metal fumes that would produce similar health effects on an exposed worker. Explain what analytical methods you would use for evaluating health hazards in the workplace. Metal Fume Result OSHA PEL ACGIH TLV Antimony 0.05 mg/m³ 0.5 mg/m³ 0.5 mg/m³ Beryllium 0.00001 mg/m³ 0.0002 mg/m³ 0.00005 mg/m³ (I) Cadmium 0.025 mg/m³ 0.005 mg/m³ 0.01 mg/m³ Chromium 0.02 mg/m³ 1 mg/m³ 0.5 mg/m³ Copper 0.03 mg/m³ 0.1 mg/m³ 0.2 mg/m³ Iron Oxide 0.5 mg/m³ 10 mg/m³ 5 mg/m³ (R) Magnesium Oxide 0.02 mg/m³ 15 mg/m³ 10 mg/m³ Molybdenum 0.003 mg/m³ 15 mg/m³ 10 mg/m³ (I) Nickel 0.25 mg/m³ 1 mg/m³ 1.5 mg/m³ (I) Zinc Oxide 0.3 mg/m³ 5 mg/m³ 2 mg/m³ (R) (R) Respirable fraction (I) Inhalable fraction Briefly summarize the primary health effects associated with overexposure to each type of metal fume, including both acute and chronic health effects. Personal sampling of a welding operation at a manufacturing facility produced the following 8-hour time-weighted average (TWA) results for individual metal fumes. Several different welding fumes can cause similar adverse health effects. Question 1 (Part 2) Welding fumes are a common occupational exposure. No references or citations are necessary. Your journal entry must be at least 200 words. Discuss how you would come to this exposure limit. Imagine you are a safety officer having to establish an occupational exposure limit (OEL). The ACGIH can consider only the health impacts when establishing TLVs. OSHA is required to consider economic and feasibility influences as well as health impacts for establishing or updating PELs. The ACGIH has published a threshold limit value (TLV) for inhalable dust of 10 mg/m3. Question 1 (Part 1) The current OSHA permissible exposure limit (PEL) for nuisance dust is 15 mg/m3 as an 8-hour time-weighted average (TWA) exposure. any low grade will result in a bad review and REFUND requestPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURSPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURSPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURSPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURSPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURSPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURS IT STARTS IN 45MINUTESaterials for the exam are attached please accept if you are 100% confident. IT STARTS IN 45MINUTESI JUST MADE IT 13 HOURS TO PREVENT AUTOMATCH.
IT STARTS IN 45 MINUTESI JUST MADE IT 13 HOURS TO PREVENT AUTOMATCH.
PLEASE READ THE QUESTION TITLE CAREFULLYPLEASE READ THE QUESTION TITLE CAREFULLYPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURSTHE DUE DATE IS NOT IN 13 HOURSTHE DUE DATE IS NOT IN 13 HOURSPLEASE READ THE QUESTION TITLE CAREFULLYPLEASE READ THE QUESTION TITLE CAREFULLYPLEASE READ THE QUESTION TITLE CAREFULLYPLEASE READ THE QUESTION TITLE CAREFULLYPLEASE READ THE QUESTION TITLE CAREFULLYTHE DUE DATE IS NOT IN 13 HOURSI JUST MADE IT 13 HOURS TO PREVENT AUTOMATCH. Vector velocidad instantánea : Representa la
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