Assignment:
Choose one of the following major contaminants as the topic of this assignment:
benzene
lead
chromium
mercury
arsenic
Write a 1000- to 1,150-word paper addressing the following regarding your chosen contaminant:
The contaminant
The sources of the contaminant
Physical properties of the contaminant
The routes of exposure--absorption--for the contaminant
The pathway of distribution--transport--for the contaminant
The uptake of your contaminant across the cell wall or membrane