Author Question: What is the primary fate of inhaled aerosol particles that are between 1 and 0.5 m? a. Most are ... (Read 15 times)

burchfield96 · **on:** Jul 16, 2018

What is the primary fate of inhaled aerosol particles that are between 1 and 0.5 m?

a. Most are cleared during exhalation.
b. Most deposit in the central airways.
c. Most deposit in the upper airways.
d. Most deposit in the alveoli.

Question 2

Which of the following aerosols would have the highest rate of deposition by diffusion?

a. MMAD of 0.1 m
b. MMAD of 3.0 m
c. MMAD of 10.0 m
d. MMAD of 50.0 m

mistyjohnson · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: A
Particles between 1 and 0.5 m are so stable that most remain in suspension and are cleared with the exhaled gas.

Answer to Question 2

ANS: A
Particles smaller than 0.5 m have a greater retention rate in the lungs.