centration of 0.05 mg/L. The cancer potency factor for ingesting benzene is 2.9 x 102 mg/kg.day. a) Following the EPA exposure factors, determine the lifetime cancer risk assuming the receptor is an adult. State all assumptions. b) To reduce the lifetime cancer risk, it is proposed that the village replaces their homegrown produce with fish caught in the same river. Determine the percentage change in lifetime cancer risk from this potential solution and advise the community on the better food source of the two.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A family eats homegrown vegetables daily which is irrigated with water from a river polluted with benzene having a
concentration of 0.05 mg/L. The cancer potency factor for ingesting benzene is 2.9 x 10² mg/kg.day.
a) Following the EPA exposure factors, determine the lifetime cancer risk assuming the receptor is an adult.
State all assumptions.
b) To reduce the lifetime cancer risk, it is proposed that the village replaces their homegrown produce with fish
caught in the same river. Determine the percentage change in lifetime cancer risk from this potential
solution and advise the community on the better food source of the two.
Transcribed Image Text:A family eats homegrown vegetables daily which is irrigated with water from a river polluted with benzene having a concentration of 0.05 mg/L. The cancer potency factor for ingesting benzene is 2.9 x 10² mg/kg.day. a) Following the EPA exposure factors, determine the lifetime cancer risk assuming the receptor is an adult. State all assumptions. b) To reduce the lifetime cancer risk, it is proposed that the village replaces their homegrown produce with fish caught in the same river. Determine the percentage change in lifetime cancer risk from this potential solution and advise the community on the better food source of the two.
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