Estimate the chronic daily intake of 1,1,1-trichloroethane from exposure to a city water supply that contains a 1,1,1-trichloroethane concentration equal to the drinking water standard of 0.2 mg ・ L−1. Assume the exposed individual is a child who consumes water at the child rate for 5 years, that she swims once a week for 30 minutes, and that she takes a short (10 minute) bath every day. Assume her average age over the exposure period is 8. Assume that the average air concentration of 1,1,1-trichloroethane during the bath is 2 μg ・ m−3. Assume the dermal uptake from water (PC) is 0.0060 m ・ h−1 and that direct dermal absorption during bathing is no more than 50 percent of the available l,1,1-trichloroethane because she is not completely submerged.
Estimate the chronic daily intake of 1,1,1-trichloroethane from exposure to a city water supply that contains a 1,1,1-trichloroethane concentration equal to the drinking water standard of 0.2 mg ・ L−1. Assume the exposed individual is a child who consumes water at the child rate for 5 years, that she swims once a week for 30 minutes, and that she takes a short (10 minute) bath every day. Assume her average age over the exposure period is 8. Assume that the average air concentration of 1,1,1-trichloroethane during the bath is 2 μg ・ m−3. Assume the dermal uptake from water (PC) is 0.0060 m ・ h−1 and that direct dermal absorption during bathing is no more than 50 percent of the available l,1,1-trichloroethane because she is not completely submerged.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 images
