Philip Morris
the Respiratory Tract As A Route of Exposure
Fields
- Author
- Valberg, P.A.
- Area
- LOGUE,MAYADA/OFFICE
- Type
- REPT, REPORT, OTHER
- BIBL, BIBLIOGRAPHY
- CHAR, CHART, GRAPH, TABLE, MAPS
- DRAW, DRAWING
- OUTL, OUTLINE
- BIBL, BIBLIOGRAPHY
- Site
- N426
- Named Organization
- Icrp
- Task Group on Lung Dynamics
- Request
- Stmn/R1-072
- Document File
- 2025545619/2025546382/Harvard University Office of
- Continuing Education Short Course Program Harvard School
- of Public Health
- Continuing Education Short Course Program Harvard School
- Master ID
- 2025545673/6381
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- Author (Organization)
- Gradient
- Litigation
- Stmn/Produced
- Characteristic
- EXTR, EXTRA
- Date Loaded
- 24 May 1999
- UCSF Legacy ID
- xkp02a00
Document Images
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Table 3
Browninan diffusion (root-rnean square) in I second compared with distance
fallen in X second for unit density particles of different diameter *
Particle Diameter
(wn) Diffusion
in 1 second
(lun) Distance Fallen
in 1 second
(jun)
Settling greater in 1 s 50 1.7 70,000
20 2.7 11,500
10 3.8 2,900
5 5.5 740
2 8.8 125
1 13.0 33
Diffusion greater in ls 0.5 20 9.5
0.2 37 2.1
0.1 64 0.81
0.05 120 0.35
0.02 290 0.013
0.01 570 0.0063
* Temperature, 37°C; gas viscosity 1.9 x 10 -S Pa s;
appropriate correction factors applied for motion outside the range of validity of Stoke's Law.
6C09VSSZOZ
