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Physical activity changes the deposited fractions of particles in the respiratory tract of adults and children

Dobric, Julia LU ; Isaxon, Christina LU ; Stroh, Emilie LU orcid ; Wollmer, Per LU ; Olsson, Bo ; Löndahl, Jakob LU orcid and Rissler, Jenny LU (2022) International Aerosol Conference 2022 p.45-45
Abstract
Exposure to ambient air pollution can cause a number
of health problems and may be particularly dangerous to susceptible population groups such as children. Health effects caused by air pollution are critically
dependent on both the deposited fraction (DF) of the inhaled particles and in what region of the respiratory tract the deposition takes place. With increasing physical activity, the breathing pattern is altered and the airflow in the respiratory tract increase, this affects the DF and deposition site. In this study we investigated changes in DF at increasing physical activity for three population groups: ~5 and 10 year-old children, and adults.

Our results indicate that the variation in total DF with physical... (More)
Exposure to ambient air pollution can cause a number
of health problems and may be particularly dangerous to susceptible population groups such as children. Health effects caused by air pollution are critically
dependent on both the deposited fraction (DF) of the inhaled particles and in what region of the respiratory tract the deposition takes place. With increasing physical activity, the breathing pattern is altered and the airflow in the respiratory tract increase, this affects the DF and deposition site. In this study we investigated changes in DF at increasing physical activity for three population groups: ~5 and 10 year-old children, and adults.

Our results indicate that the variation in total DF with physical activity is minor, but that the DF for the UFPs increase in the AI region at higher activity levels. This is important since the removal of particles in the AI region is not effective and UFPs are believed to pose a specific health risk. Therefore, activity patterns and DF of different population groups need to be considered when estimating particle dose and evaluating health risks. (Less)
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author
; ; ; ; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
Physical activity, Regional particle deposition, Respiratory tract, Children
pages
1 pages
conference name
International Aerosol Conference 2022
conference location
Aten, Greece
conference dates
2022-09-04 - 2022-09-09
project
Stadsluftens hälsobelastning på barn
language
English
LU publication?
yes
id
de00b46b-13aa-4555-9aea-ab87f4b37edb
date added to LUP
2022-09-20 16:51:21
date last changed
2023-11-07 10:09:52
@misc{de00b46b-13aa-4555-9aea-ab87f4b37edb,
  abstract     = {{Exposure to ambient air pollution can cause a number<br/>of health problems and may be particularly dangerous to susceptible population groups such as children. Health effects caused by air pollution are critically<br/>dependent on both the deposited fraction (DF) of the inhaled particles and in what region of the respiratory tract the deposition takes place. With increasing physical activity, the breathing pattern is altered and the airflow in the respiratory tract increase, this affects the DF and deposition site. In this study we investigated changes in DF at increasing physical activity for three population groups: ~5 and 10 year-old children, and adults.<br/><br/>Our results indicate that the variation in total DF with physical activity is minor, but that the DF for the UFPs increase in the AI region at higher activity levels. This is important since the removal of particles in the AI region is not effective and UFPs are believed to pose a specific health risk. Therefore, activity patterns and DF of different population groups need to be considered when estimating particle dose and evaluating health risks.}},
  author       = {{Dobric, Julia and Isaxon, Christina and Stroh, Emilie and Wollmer, Per and Olsson, Bo and Löndahl, Jakob and Rissler, Jenny}},
  keywords     = {{Physical activity; Regional particle deposition; Respiratory tract; Children}},
  language     = {{eng}},
  month        = {{09}},
  pages        = {{45--45}},
  title        = {{Physical activity changes the deposited fractions of particles in the respiratory tract of adults and children}},
  year         = {{2022}},
}