) Estimate the chronic daily intake of 1,1,1-trichloroethane from exposure to city water supply that contains a 1,1,1-trichloroethane concentration equal to the drinking water standard of 0.2 mg/L. Assume the exposed individual is a child who consumes water at the child rate for 5 years, breathes air at the adult female rate, swims once a week for 30 minutes, and 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 g/L. Assume the dermal uptake form water (PC) is 0.0060 m/h and that direct dermal absorption during bathing is no more than 50 percent of the available 1,1,1-trichloroethane because she is not completely submerged.