Preschool Children’s Inhalation Rates Estimated from Accelerometers—A Tool to Estimate Children’s Exposure to Air Pollution
Dobric, Julia LU ; Stroh, Emilie LU
; Isaxon, Christina
LU
; Wollmer, Per
LU
; Dencker, Magnus
LU
and Rissler, Jenny
LU
(2022)
In Aerosol and Air Quality Research
22(8).
- Abstract
- Children are particularly sensitive to air pollution exposure, and their personal exposures may differ significantly from those of adults. One key factor for understanding the personal inhaled dose of air pollutants is the respiratory minute ventilation (Ve). To estimate the amount of particles circulated through the lungs, 24 h averages of Ve are often used. These averages poorly capture variations in Ve during the day, and between individuals. We here develop and implement a concept to assess individual Ve of children, with minimal impact on their natural activity and movement pattern by using ActiGraph GT3X+ accelerometers. Activity of 136 preschool children in the ages 3 to 5 years was logged using accelerometers while the children... (More)
- Children are particularly sensitive to air pollution exposure, and their personal exposures may differ significantly from those of adults. One key factor for understanding the personal inhaled dose of air pollutants is the respiratory minute ventilation (Ve). To estimate the amount of particles circulated through the lungs, 24 h averages of Ve are often used. These averages poorly capture variations in Ve during the day, and between individuals. We here develop and implement a concept to assess individual Ve of children, with minimal impact on their natural activity and movement pattern by using ActiGraph GT3X+ accelerometers. Activity of 136 preschool children in the ages 3 to 5 years was logged using accelerometers while the children attended their preschools during a week. A linear regression equation is developed and used for estimating Ve from the accelerometer data retrieved for each individual child. The results show large variations in weekly average Ve between individuals, ranging from 0.33 to 0.48 L min–1 kg–1. Over the days the averages of the individuals’ 1st and 3rd quartiles were 0.28 and 0.48 L min–1 kg–1, respectively. Outdoor activities resulted in a 17% higher Ve than indoor activities, which may be important to consider when estimating the inhaled dose of air pollutants since pollution levels and particle toxicities can be different indoors and outdoors. The observations motivate the use of individual values of Ve in exposure assessments and suggest that accelerometers are a suitable tool for estimating children’s individual Ve in their natural environment. Combined with time resolved local air pollution monitoring, these measurements can provide the basis of a more precise estimate of children’s inhaled dose of air pollutants. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d04626a2-a6cd-4cc9-9ddd-300d35e5c17f
- author
- Dobric, Julia
LU
; Stroh, Emilie
LU
; Isaxon, Christina
LU
; Wollmer, Per
LU
; Dencker, Magnus
LU
and Rissler, Jenny
LU
- organization
- publishing date
- 2022-05-27
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Aerosol and Air Quality Research
- volume
- 22
- issue
- 8
- article number
- 220067
- publisher
- Taiwan Association for Aerosol Research
- external identifiers
-
- scopus:85135485406
- ISSN
- 2071-1409
- DOI
- 10.4209/aaqr.220067
- project
- Stadsluftens hälsobelastning på barn
- language
- English
- LU publication?
- yes
- id
- d04626a2-a6cd-4cc9-9ddd-300d35e5c17f
- date added to LUP
- 2022-06-21 12:55:09
- date last changed
- 2023-11-21 06:58:25
@article{d04626a2-a6cd-4cc9-9ddd-300d35e5c17f,
abstract = {{Children are particularly sensitive to air pollution exposure, and their personal exposures may differ significantly from those of adults. One key factor for understanding the personal inhaled dose of air pollutants is the respiratory minute ventilation (Ve). To estimate the amount of particles circulated through the lungs, 24 h averages of Ve are often used. These averages poorly capture variations in Ve during the day, and between individuals. We here develop and implement a concept to assess individual Ve of children, with minimal impact on their natural activity and movement pattern by using ActiGraph GT3X+ accelerometers. Activity of 136 preschool children in the ages 3 to 5 years was logged using accelerometers while the children attended their preschools during a week. A linear regression equation is developed and used for estimating Ve from the accelerometer data retrieved for each individual child. The results show large variations in weekly average Ve between individuals, ranging from 0.33 to 0.48 L min–1 kg–1. Over the days the averages of the individuals’ 1st and 3rd quartiles were 0.28 and 0.48 L min–1 kg–1, respectively. Outdoor activities resulted in a 17% higher Ve than indoor activities, which may be important to consider when estimating the inhaled dose of air pollutants since pollution levels and particle toxicities can be different indoors and outdoors. The observations motivate the use of individual values of Ve in exposure assessments and suggest that accelerometers are a suitable tool for estimating children’s individual Ve in their natural environment. Combined with time resolved local air pollution monitoring, these measurements can provide the basis of a more precise estimate of children’s inhaled dose of air pollutants.}},
author = {{Dobric, Julia and Stroh, Emilie and Isaxon, Christina and Wollmer, Per and Dencker, Magnus and Rissler, Jenny}},
issn = {{2071-1409}},
language = {{eng}},
month = {{05}},
number = {{8}},
publisher = {{Taiwan Association for Aerosol Research}},
series = {{Aerosol and Air Quality Research}},
title = {{Preschool Children’s Inhalation Rates Estimated from Accelerometers—A Tool to Estimate Children’s Exposure to Air Pollution}},
url = {{http://dx.doi.org/10.4209/aaqr.220067}},
doi = {{10.4209/aaqr.220067}},
volume = {{22}},
year = {{2022}},
}