Mathematical form factor studies on the effect of water on airborne particles morphology using a bi-dimensional TEM image processing

Journal of Environmental Monitoring : JEM
Rodolfo CucchiellaClaudio Trombini

Abstract

Mathematical morphology is a tool for extracting image components that are useful for representation and description. The technique consists of a set-theoretic method of image analysis providing a quantitative description of geometrical structures. A simple application of mathematical morphology to a bi-dimensional processing of TEM images of airborne particles allows us to distinguish between particles grown and/or transported in atmosphere under dry conditions or in rainy days by a simple comparison of the corresponding image form factors. The form factors range in the 0.385-0.031 interval in the case of particles sampled in rainy days, and in the 0.103-0.006 interval in the case of non-rainy conditions. The same classification criterion was applied to filters collected under dry conditions and plunged in water. The results demonstrate that a morphological change may be artificially induced to the particle structure. The artificially wet particles, indeed, display an apparent contraction of their structures evidenced by a two-fold increase of the average values of their form factors. The last experiment roughly simulates the impact of particles on membranes of the respiratory tract.

References

Jan 1, 1994·Annual Review of Public Health·D W Dockery, C A Pope
Mar 27, 2001·Nature·D Dickson
Dec 14, 2001·American Journal of Physiology. Lung Cellular and Molecular Physiology·Michaela KendallPaul Luckham
Apr 20, 2004·Toxicology Letters·Norbert Englert
Jun 8, 2004·Environmental Science & Technology·Annele K K VirtanenJorma Keskinen
Sep 7, 2004·Current Opinion in Allergy and Clinical Immunology·Joachim Heinrich, Heinz-Erich Wichmann
Sep 21, 2004·Occupational and Environmental Medicine·R M HarrisonA J Kibble
Mar 29, 2005·European Journal of Epidemiology·Marina LacasañaFerran Ballester
Apr 5, 2005·The Journal of Allergy and Clinical Immunology·Leonardo Trasande, George D Thurston
Apr 12, 2005·Environmental Science & Technology·Urs MathisKonstantinos Boulouchos
Aug 27, 2005·Journal of Environmental Monitoring : JEM·Milena StracquadanioClaudio Trombini
Nov 24, 2006·Environmental Science & Technology·Reto GieréKatherine Smith
Dec 6, 2006·Environmental Science & Technology·Rajan K ChakrabartyJohn Walker

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Citations

Feb 23, 2011·International Journal of Molecular Sciences·Magdalena Pacwa-PłociniczakSwaranjit Singh Cameotra

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