Tracheobronchial and alveolar dose of submicrometer particles for different population age groups in Italy
Buonanno, Giorgio , Giovinco, Gaspare , Morawska, Lidia, & Stabile, Luca (2011) Tracheobronchial and alveolar dose of submicrometer particles for different population age groups in Italy. Atmospheric Environment, 45(34), pp. 6216-6224.
Exposure to ultrafine particles (diameter less than 100 nm) is an important topic in epidemiological and toxicological studies. This study used the average particle number size distribution data obtained from our measurement survey in major micro-environments, together with the people activity pattern data obtained from the Italian Human Activity Pattern Survey to estimate the tracheobronchial and alveolar dose of submicrometer particles for different population age groups in Italy. We developed a numerical methodology based on Monte Carlo method, in order to estimate the best combination from a probabilistic point of view. More than 106 different cases were analyzed according to a purpose built sub-routine and our results showed that the daily alveolar particle number and surface area deposited for all of the age groups considered was equal to 1.5 x 1011 particles and 2.5 x 1015 m2, respectively, varying slightly for males and females living in Northern or Southern Italy. In terms of tracheobronchial deposition, the corresponding values for daily particle number and surface area for all age groups was equal to 6.5 x 1010 particles and 9.9 x 1014 m2, respectively. Overall, the highest contributions were found to come from indoor cooking (female), working time (male) and transportation (i.e. traffic derived particles) (children).
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|Item Type:||Journal Article|
|Keywords:||Tracheobronchial particle deposition, Alveolar particle deposition, Ultrafine particle exposure, Time activity pattern, Monte Carlo method|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700)|
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health|
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2011 Elsevier|
|Copyright Statement:||This is the author’s version of a work that was accepted for publication in Atmospheric Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Atmospheric Environment, [VOL 45, ISSUE 34, (2011)] DOI:10.1016/j.atmosenv.2011.07.066|
|Deposited On:||19 Jul 2012 16:30|
|Last Modified:||09 Dec 2012 01:29|
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