Human Health and the Environment


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Essay #: 053046
Total text length is 10,565 characters (approximately 7.3 pages).

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The beginning:
Human Health and the Environment
1)In order to deal with a potentially toxic substance it is necessary to do risk assessment.  For this question we will be using a hypothetical example to demonstrate the screening level of risk assessment.  The receptor for this case is a 70kg man who has worked for 25 years as an 
.  During this 25 year period he has been exposed to 8 hours a day.  What we are concerned with is the potential threat posed by benzene for this receptor.  The following questions are based upon this case.
A)Calculate Estimated Daily Intake (EDI) for the two following routes of exposure given the information listed below .
-Inhalation with an air concentration of 12.8g/m3 at all times of the day for 25 years.
The end:
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