Unit IVEssay
After reading the Unit IV Lesson and your assigned readings, choose three substances that were discussed. One
substance must be a gas/vapor hazard, one must be an aerosol hazard, and one must be a biological hazard.
Write a minimum of one page for each hazard you choose (a minimum of three pages total), which summarizes the
following information:
Explain whether the substance is a chemical or biological hazard, and explain how you determined that.
Explain the key chemical properties (vapor pressure, vapor density, molecular weight, relative size) as applicable, and
describe how these properties affect the different routes of exposure. Based on the chemical properties, how would you
identify which exposure route is the most important?