A wastewater treatment plant worker spends her day checking wet wells. She is exposed to hydrogen sulfide in this confined space. The average temperature in the wet well is 25°C and the atmospheric pressure is 101.325 kPa. The recommended time weighted average air concentration for occupational exposure to hydrogen sulfide is 10 ppm (v/v). This concentration is based on an assumption that the individual is generally healthy and is exposed for 8 hours per day, 5 days per week, 50 weeks per year, over a working lifetime (that is from age 18 to 65 years). Assuming an average female body weight and inhalation rate over the working life of the individual, what is the lifetime (75 years) CDI?
A wastewater treatment plant worker spends her day checking wet wells. She is exposed to hydrogen sulfide in this confined space. The average temperature in the wet well is 25°C and the atmospheric pressure is 101.325 kPa. The recommended time weighted average air concentration for occupational exposure to hydrogen sulfide is 10 ppm (v/v). This concentration is based on an assumption that the individual is generally healthy and is exposed for 8 hours per day, 5 days per week, 50 weeks per year, over a working lifetime (that is from age 18 to 65 years). Assuming an average female body weight and inhalation rate over the working life of the individual, what is the lifetime (75 years) CDI?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A wastewater treatment plant worker spends her day checking wet wells. She is exposed to hydrogen sulfide in this confined space. The average temperature in the wet well is 25°C and the atmospheric pressure is 101.325 kPa. The recommended time weighted average air concentration for occupational exposure to hydrogen sulfide is 10 ppm (v/v). This concentration is based on an assumption that the individual is generally healthy and is exposed for 8 hours per day, 5 days per week, 50 weeks per year, over a working lifetime (that is from age 18 to 65 years). Assuming an average female body weight and inhalation rate over the working life of the individual, what is the lifetime (75 years) CDI?
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