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Transcript 
Inhalable
Particle Size
Thoracic
(Total dust)
Respirable
Welding Fume
Combustion Nuclei
Wind blown dust
Types of Particles
Diesel Engine Exhaust
Fly Ash
Volcanic emissions
Paint Pigment
Oil Smoke
Pollen
Sea salt
Vacuuming
Carbon Black
Construction Activities
Soot
Coal Dust (mining)
Tobacco smoke
Bacteria
Virus
0.001
0.01
0.1
1
Particle Size Range (micrometers)
4 10
Environmental / Naturally Occurring Particles
Workplace / man-made Particles
100
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