A 70-kg individual drinks 2 L/day of water containing 0.10 mg/L of tetrachloroethylene for 12 years. (a) (b) (c) Find the hazard quotient for this exposure. Find the cancer risk. If the individual drinks this water for 20 years instead of 12, recomputed the hazard quotient and the cancer risk.
A 70-kg individual drinks 2 L/day of water containing 0.10 mg/L of tetrachloroethylene for 12 years. (a) (b) (c) Find the hazard quotient for this exposure. Find the cancer risk. If the individual drinks this water for 20 years instead of 12, recomputed the hazard quotient and the cancer risk.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:A 70-kg individual drinks 2 L/day of water containing 0.10 mg/L of tetrachloroethylene
for 12 years.
(a)
(b)
(c)
Find the hazard quotient for this exposure.
Find the cancer risk.
If the individual drinks this water for 20 years instead of 12, recomputed the
hazard quotient and the cancer risk.
Expert Solution
Step 1
Given that-
Weight of individual, BW= 70 kg
Contamination rate of tetrachloroethylene, C=0.10 mg/L
Contact rate, ( drinking water) CR=2 L/day
Exposure duration, ED=12 years
Exposure frequency, EF=365 days/year
Average exposure time is-
(a)
From standard reference the daily tolerable intake dose for tetrachloroethylene is-
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