Particles Flashcards
1
Q
What are the basic types of particle aerosol shapes?
A
The three shape classes are: isometric (spherical), platelet (2 long dimensions, 1 short dimension), and fibers (1 long dimension, 1 short dimension).
2
Q
Fumes
A
Sub-micrometer aerosols formed from vapor condensation or combustion processes
3
Q
Smokes
A
Solid or liquid particles from incomplete combustion
4
Q
Dusts
A
Solid particles generated by mechanical means
5
Q
Mists
A
Liquid droplets in air generated by atomization or condensation
6
Q
Sprays
A
Liquid particles generated by mechanical means (usually larger)
7
Q
Inhalable particle cut size
A
≤ 100 um
8
Q
Thoracic particle cut size
A
≤ 10 um
9
Q
Respirable particle cut size
A
≤ 4
