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Journal of Environmental Science and Health, Part A
Toxic/Hazardous Substances and Environmental Engineering
Volume 45, 2010 - Issue 10
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ARTICLES

Measurements of respirable dust and nanoparticle concentrations in a titanium dioxide pigment production factory

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Pages 1227-1233 | Received 17 Dec 2009, Published online: 08 Jul 2010
 

Abstract

This study compared respirable dust and nanoparticle concentrations measured by different sampling devices at a titanium dioxide pigment factory. Respirable particle mass concentrations, nanoparticle concentrations, particle size distribution and particle metallic content were measured at different sampling locations. The sampling results of the Multi-orifice Uniform Deposit Impactor (MOUDI) showed that the particle size distribution at this titanium dioxide production factory fell in the range of 1–10 μ m. Generally, the higher levels of the respirable particle mass concentrations and nanoparticle number concentrations were near the packing site of the pigment titanium dioxide production factory. Metal analysis results revealed that the titanium dioxide concentrations in respirable dust and nanoparticles were within the limits specified by National Institute for Occupational Safety and Health (NIOSH). During sampling, particle metallic content analysis is essential for identifying the source of particles and for measuring respirable dust and nanoparticle concentrations.

Acknowledgments

The authors would like to thank for the support of the Taiwan Institute of Occupational Safety and Health under the Contract number IOSH97-H104.

Notes

* N.D.: Not detectable.

* N.D.: Not detectable.

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