Author Question: Which exemplify environmental media and transport mechanisms within an exposure pathway? (Select all ... (Read 20 times)

OSWALD · **on:** Jul 8, 2018

Which exemplify environmental media and transport mechanisms within an exposure pathway? (Select all that apply.)

A) Mercury
B) Groundwater
C) Pond
D) Air
E) Subsurface soil

Question 2

Bioavailability is the amount of the contaminant that:

A) Is absorbed into the body and becomes available at the site of physiological activity
B) Initially escapes a container and becomes available for contact with living organisms
C) Is airborne and available for inhalation
D) Is waterborne and available for skin contact

bimper21 · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

Ans: B, C, D, E
Feedback:
Environmental media include groundwater, surface water (lakes, ponds, and rivers), air, surface soil, subsurface soil, sediment, and biota (plants and animals). The environmental medium that the contaminant is in helps determine who is exposed and how they are exposed. Mercury is an example of a contaminant, or source of contamination.

Answer to Question 2

Ans: A
Feedback:
Bioavailability is the amount of a substance or contaminant that is absorbed into the body and becomes available at the site of physiological activity.