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Quèstion 2 An employee is exposed to a chemical during an eight-hour work day as follows: Exposure level ppm Time of day Duration of exposure

Quèstion 2 An employee is exposed to a chemical during an eight-hour work day as follows: Exposure level (ppm) Time of day (Duration of exposure) 8:00 am – 11:00 am 11:00 am – 12:00 pm 1:00 pm – 3:00 pm 3:00 pm – 4:00 pm 4:00 pm – 5:00 pm 230 ppm 240 ppm 210 ppm 200 ppm 190 ppm If the Permissible Exposure Level (PEL) for this chemical is 210 ppm. ppm a). What is the value of Time Weighted Average? b). Does the employee need to wear a PPE (Yes or No)?

Aug 28 2020 View more View Less

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