Estimate the chronic daily intake of trichloro ethane

Reference no: EM13313695

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. Assume the exposed individual is a child (8 years old) who consumes water at the child rate for 4 years, that he swims once a week for 30 min, and that he takes a short (10 min) bath every day. Assume his average body weight over the exposure period is 26 kg. 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 0.006 m/hr and that direct dermal absorption during bathing is no more than 80% of the available 1,1,1-trichloroethane because he is not completely submerged. Assume the body weight and skin surface area are constant during the exposure period.

Reference no: EM13313695

Questions Cloud

Explain what mass of precipitate forms : What mass of precipitate forms when 157.5 mL of 0.749 M NaOH is added to 517 mL of a solution that contains 10.9 g aluminum sulfate per liter

Explain the change in internal energy of the sysytem : A system absorbs 198kJ of heat and the surroundings do 120kJ of work on the system. What is the change in internal energy of the system

Assignment for critical geopolitics : Select a movie about the Middle East and evaluate it from the perspective of critical geopolitics. The movie that you will choose might be about war, politics, and cultural issues in the Middle East.

Explain how many ml of kf solution be added to hf : How many mL (to the nearest mL) of 0.200-M KF solution should be added to 660. mL of 0.193-M HF to prepare a pH = 3.30 solution

Estimate the chronic daily intake of trichloro ethane : Estimate the chronic daily intake of 1,1,1-trichloro ethane 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.

Find fuel consumption miles per liter for city driving cycle : A car has the following characteristics: weight = 18000 N; cross-sectional area = 2.5 m^2, drag coefficient = 0.5; rolling friction coefficient = 0.02. The energy content of gasoline is 3.5E10^7 Joules/Liter.

What is the nature of media state relations : What is the nature of media state relations in the middle east for example israel

Explain deionized water prior to being diluted with naoh : Using the data collected for part B on your data sheet, calculate the molar mass of the unknown acid. Mass of unknown acid is .501g and volume of NaOH used was 17.51mL Unknown acid was dissolved in 50mL of deionized water prior to being diluted wi..

Explain a coffee-cup calorimeter containing : In the following experiment, a coffee-cup calorimeter containing 100. \rm mL of \rm H_2O is used. The initial temperature of the calorimeter is 23.0

User Account

All Pages