Annals of Occupational Hygiene Advance Access published online on December 16, 2005
Annals of Occupational Hygiene, doi:10.1093/annhyg/mei061
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 Department of Occupational and Environmental Health, University of Iowa, 102 IREH, 100 Oakdale Campus, Iowa City, IA 52242-5000, USA
* To whom correspondence should be addressed. Aerosol mapping was used to assess particle number and mass concentration in an engine machining and assembly facility in the winter and spring. Number and mass concentration maps were constructed from data collected with two mobile sampling carts, each equipped with a condensation particle counter (10 nm < diameter < 1 µm) and an optical particle counter (300 nm < diameter < 20 µm). Number concentrations inside the facility ranged from 15 to 150 times greater than that outside the facility and were highly dependent on season. The greatest number concentration (>1 000 000 particles cm-3) occurred in winter in an area where mass concentration was low (<0.10 mg m-3). The increased number of particles was attributed to the exhaust of direct-fire, natural-gas burners used to heat the supply air. The greatest mass concentrations were found around metalworking operations that were poorly enclosed. The larger particles that dominated particle mass in this area were accompanied by ultrafine particles, probably generated through evaporation and subsequent condensation of metalworking fluid components. Repeat mapping events demonstrated that these ultrafine particles persist in workplace air over long time periods.
Received September 30, 2005
Article
The Mapping of Fine and Ultrafine Particle Concentrations in an Engine Machining and Assembly Facility
Thomas M. Peters 1 *,
William A. Heitbrink 1,
Douglas E. Evans 2 
,
Thomas J. Slavin 3,
and
Andrew D. Maynard 4
2 National Institute for Occupational Safety and Health, Division of Applied Research and Technology, 4676 Columbia Parkway, MS--R3 Cincinnati, OH 45226, USA
3 International Truck and Engine Corporation, 4201 Winfield Rd, Warrenville, IL 60555, USA
4 Woodrow Wilson International Center for Scholars, One Woodrow Wilson Plaza, 1300 Pennsylvania Ave., N.W. Washington, D.C. 20004-3027, USA
Thomas M. Peters, E-mail: thomas-m-peters{at}uiowa.edu
Abstract The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the National Institute for Occupational Safety and Health.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  K. Elihn and P. Berg Ultrafine Particle Characteristics in Seven Industrial Plants Ann. Hyg., July 1, 2009; 53(5): 475 - 484. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Park, P. A. Stewart, and J. B. Coble Determinants of Exposure to Metalworking Fluid Aerosols: A Literature Review and Analysis of Reported Measurements Ann. Hyg., April 1, 2009; 53(3): 271 - 288. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. E. Evans, W. A. Heitbrink, T. J. Slavin, and T. M. Peters Ultrafine and Respirable Particles in an Automotive Grey Iron Foundry Ann. Hyg., January 1, 2008; 52(1): 9 - 21. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. T. Stern and S. E. McNeil Nanotechnology Safety Concerns Revisited Toxicol. Sci., January 1, 2008; 101(1): 4 - 21. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. OGDEN Annals of Occupational Hygiene at Volume 50: Many Achievements, a Few Mistakes, and an Interesting Future Ann. Hyg., November 1, 2006; 50(8): 751 - 764. [Abstract] [Full Text] [PDF]
|
|