Dustiness
Template:New unreviewed article
[Dustiness]
Dustiness is defined as the tendency of powdered materials to release airborne particles under external energies[1]. Dusty materials tend to generate aerosols with high particle concentrations measured in number or in mass.
[Occupational health issues related to powder dustiness]
The dusty level of powders directly affects worker exposure scenarios and associated health risks in occupational settings. Powder-based aerosol particles can pose advert effects when deposited in human respirotary systems via inhalation[2].
[Dustiness testing]
Various laboratory systems have been developed to test dustiness of fine powders. A European standard on dustiness testing has been established by the European Committee for Standardization (CEN) since April 2006[3]. This standard is especially related to human exposure in workplace (EN 15051). It describes two methods: the rotating drum system and continuous drop system[4]. Recently, an aerosol generation system based on laboratory funnel (resembling a fluidized bed) has been developed, which has the potential to become an alternative or supplementary method to the existing systems in dustiness testing[5]. Its performance was compared to other three aerosolization systems using the same test materials[6].
References
- ^ Evans DE, Turkevich LA, Roettgers CT, Deye GJ, Baron PA.. Dustiness of Fine and Nanoscale Powders. Ann Occup Hyg. 2013 Mar;57(2):261-77. DOI: 10.1093/annhyg/mes060. Epub 2012 Oct 12.
- ^ Book: Pulmonary Deposition and Retention of Inhaled Aerosols. Theodore F. Hatch, Paul Gross and George D. Clayton. ISBN: 978-1-4832-5671-9.
- ^ GÖRAN LIDÉN. Dustiness Testing of Materials Handled at Workplaces. Ann Occup Hyg (2006) 50 (5): 437-439. DOI: 10.1093/annhyg/mel042.
- ^ Schneider T., Jensen KA. Combined single-drop and rotating drum dustiness test of fine to nanosize powders using a small drum. Ann Occup Hyg. 2008 Jan;52(1):23-34. Epub 2007 Dec 1. DOI: 10.1093/annhyg/mem059
- ^ Yaobo Ding, Michael Riediker. A system to assess the stability of airborne nanoparticle agglomerates under aerodynamic shear. Journal of Aerosol Science, Volume 88, October 2015, Pages 98–108. DOI:10.1016/j.jaerosci.2015.06.001
- ^ Yaobo Ding, Burkhard Stahlmecke, Araceli Sánchez Jiménez, Ilse L. Tuinman, Heinz Kaminski, Thomas A. J. Kuhlbusch, Martie van Tongeren & Michael Riediker (2015) Dustiness and Deagglomeration Testing: Interlaboratory Comparison of Systems for Nanoparticle Powders, Aerosol Science and Technology, 49:12, 1222-1231, DOI: 10.1080/02786826.2015.1114999.