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A Water Quality Standard will be developed for radioactive isotope “Iron-55” which has physical (radioactive) and biological half-lives of 2.7 and 1.6 years, respectively. Through toxicological studies scientists decided “spleen” as the critical organ and the critical accumulation of Iron-55 in spleen has been determined to be 0.5 gram. Assuming radioactive exposure is only due to drinking water consumption and average life expectancy is 75 years. a) What should be the Maximum Concentration Level (MCL) as mg/L for Iron-55 in drinking water.  b) How long does it take to eliminate 95% of this radioactive isotope from human spleen after the person gives up on drinking water contaminated with Iron-55?

A Water Quality Standard will be developed for radioactive isotope “Iron-55” which has physical (radioactive) and biological half-lives of 2.7 and 1.6 years, respectively. Through toxicological studies scientists decided “spleen” as the critical organ and the critical accumulation of Iron-55 in spleen has been determined to be 0.5 gram. Assuming radioactive exposure is only due to drinking water consumption and average life expectancy is 75 years. a) What should be the Maximum Concentration Level (MCL) as mg/L for Iron-55 in drinking water.  b) How long does it take to eliminate 95% of this radioactive isotope from human spleen after the person gives up on drinking water contaminated with Iron-55?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A Water Quality Standard will be developed for radioactive isotope “Iron-55” which has physical (radioactive) and biological half-lives of 2.7 and 1.6 years, respectively. Through toxicological studies scientists decided “spleen” as the critical organ and the critical accumulation of Iron-55 in spleen has been determined to be 0.5 gram. Assuming radioactive exposure is only due to drinking water consumption and average life expectancy is 75 years.


a) What should be the Maximum Concentration Level (MCL) as mg/L for Iron-55 in drinking water. 


b) How long does it take to eliminate 95% of this radioactive isotope from human spleen after the person gives up on drinking water contaminated with Iron-55? 

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