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Open AccessArticle

Regional Inhaled Deposited Dose of Urban Aerosols in an Eastern Mediterranean City

1
Department of Physics, The University of Jordan, Amman 11942, Jordan
2
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, PL 64, FI-00014 UHEL Helsinki, Finland
3
Lyles School of Civil Engineering, Purdue University, West Lafayette, IN 47907, USA
4
Ray W. Herrick Laboratories, Center for High Performance Buildings, Purdue University, West Lafayette, IN 47907, USA
5
Department of Design Sciences, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(9), 530; https://doi.org/10.3390/atmos10090530
Received: 21 August 2019 / Revised: 5 September 2019 / Accepted: 5 September 2019 / Published: 9 September 2019
(This article belongs to the Special Issue Exposure Assessment of Air Pollution)
We calculated the regional deposited dose of inhaled particulate matter based on number/mass concentrations in Amman, Jordan. The dose rate was the highest during exercising but was generally lower for females compared to males. The fine particles dose rate was 1010–1011 particles/h (101–102 µg/h). The PM10 dose rate was 49–439 µg/h for males and 36–381 µg/h for females. While resting, the PM10 deposited in the head airways was 67–77% and 8–12% in the tracheobronchial region. When exercising, the head airways received 37–44% of the PM10, whereas the tracheobronchial region received 31–35%. About 8% (exercise) and 14–16% (rest) of the PM2.5 was received in the head airways, whereas the alveolar received 74–76% (exercise) and 54–62% (rest). Extending the results for common exposure scenarios in the city revealed alarming results for service workers and police officers; they might receive PM2.5 and 220 µg/h PM10 while doing their duty on main roads adjacent to traffic. This is especially critical for a pregnant police officer. Outdoor athletic activities (e.g., jogging along main roads) are associated with high PM2.5 and PM10 dose rates (100 µg/h and ~425 µg/h, respectively). View Full-Text
Keywords: dose rate; lung deposition; particulate matter (PM); particle number; ultrafine particles; exposure; urban air quality; Middle East and North Africa (MENA) dose rate; lung deposition; particulate matter (PM); particle number; ultrafine particles; exposure; urban air quality; Middle East and North Africa (MENA)
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Hussein, T.; Saleh, S.S.A.; dos Santos, V.N.; Boor, B.E.; Koivisto, A.J.; Löndahl, J. Regional Inhaled Deposited Dose of Urban Aerosols in an Eastern Mediterranean City. Atmosphere 2019, 10, 530.

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