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

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Hussein , T , Saleh , S S A , dos Santos , V N , Boor , B E , Koivisto , A J & Londahl , J 2019 , ' Regional Inhaled Deposited Dose of Urban Aerosols in an Eastern Mediterranean City ' , Atmosphere , vol. 10 , no. 9 , 530 . https://doi.org/10.3390/atmos10090530

Title: Regional Inhaled Deposited Dose of Urban Aerosols in an Eastern Mediterranean City
Author: Hussein, Tareq; Saleh, Shatha Suleiman Ali; dos Santos, Vanessa N.; Boor, Brandon E.; Koivisto, Antti J.; Londahl, Jakob
Other contributor: University of Helsinki, Air quality research group
University of Helsinki, INAR Physics
University of Helsinki, Institute for Atmospheric and Earth System Research (INAR)



Date: 2019-09
Language: eng
Number of pages: 17
Belongs to series: Atmosphere
ISSN: 2073-4433
DOI: https://doi.org/10.3390/atmos10090530
URI: http://hdl.handle.net/10138/310850
Abstract: 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 10(10)-10(11) particles/h (10(1)-10(2) mu g/h). The PM10 dose rate was 49-439 mu g/h for males and 36-381 mu g/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 50 mu g/h PM2.5 and 220 mu g/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 mu g/h and -425 mu g/h, respectively).
Subject: dose rate
lung deposition
particulate matter (PM)
particle number
ultrafine particles
exposure
urban air quality
Middle East and North Africa (MENA)
RESPIRATORY-TRACT DEPOSITION
ULTRAFINE PARTICLE DEPOSITION
AIR-POLLUTION
CHEMICAL-COMPOSITION
PARTICULATE MATTER
EFFECTIVE DENSITY
FINE
NANOPARTICLES
EXPOSURE
SIZE
114 Physical sciences
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