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Usemann J, Mozun R, Kuehni CE, de Hoogh K, Flueckiger B, Singer F, Zwahlen M, Moeller A, Latzin P. Air pollution exposure during pregnancy and lung function in childhood: The LUIS study. Pediatr Pulmonol 2024. [PMID: 38980223 DOI: 10.1002/ppul.27169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/13/2024] [Accepted: 06/27/2024] [Indexed: 07/10/2024]
Abstract
BACKGROUND The adverse effects of high air pollution levels on childhood lung function are well-known. Limited evidence exists on the effects of moderate exposure levels during early life on childhood lung function. We investigated the association of exposure to moderate air pollution during pregnancy, infancy, and preschool time with lung function at school age in a Swiss population-based study. METHODS Fine-scale spatiotemporal model estimates of particulate matter with a diameter <2.5 µm (PM2.5) and nitrogen dioxide (NO2) were linked with residential address histories. We compared air pollution exposures within different time windows (whole pregnancy, first, second, and third trimester of pregnancy, first year of life, preschool age) with forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) measured cross-sectionally using linear regression models adjusted for potential confounders. RESULTS We included 2182 children, ages 6-17 years. Prenatal air pollution exposure was associated with reduced lung function at school age. In children aged 12 years, per 10 µg·m-3 increase in PM2.5 during pregnancy, FEV1 was 55 mL lower (95% CI -84 to -25 mL) and FVC 62 mL lower (95% CI -96 to -28 mL). Associations were age-dependent since they were stronger in younger and weaker in older children. PM2.5 exposure after birth was not associated with reduced lung function. There was no association between NO2 exposure and lung function. CONCLUSION In utero lung development is most sensitive to air pollution exposure, since even modest PM2.5 exposure during the prenatal time was associated with reduced lung function, most prominent in younger children.
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Affiliation(s)
- Jakob Usemann
- Department of Respiratory Medicine, University Children's Hospital Zurich, Zurich, Switzerland
- University Children's Hospital Basel (UKBB), Basel, Switzerland
- Paediatric Respiratory Medicine, Children's University Hospital of Bern, University of Bern, Bern, Switzerland
| | - Rebeca Mozun
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Department of Intensive Care and Neonatology, Children's Research Centre, University Children's Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Claudia E Kuehni
- Paediatric Respiratory Medicine, Children's University Hospital of Bern, University of Bern, Bern, Switzerland
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Kees de Hoogh
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Benjamin Flueckiger
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Florian Singer
- Department of Respiratory Medicine, University Children's Hospital Zurich, Zurich, Switzerland
- Paediatric Respiratory Medicine, Children's University Hospital of Bern, University of Bern, Bern, Switzerland
- Department of Paediatrics and Adolescent Medicine, Division of Paediatric Pulmonology and Allergology, Medical University of Graz, Graz, Austria
| | - Marcel Zwahlen
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Alexander Moeller
- Department of Respiratory Medicine, University Children's Hospital Zurich, Zurich, Switzerland
| | - Philipp Latzin
- Paediatric Respiratory Medicine, Children's University Hospital of Bern, University of Bern, Bern, Switzerland
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Hemstock EJ, Foong RE, Hall GL, Wheeler AJ, Dharmage SC, Dalton M, Williamson GJ, Gao C, Abramson MJ, Johnston FH, Zosky GR. Lung function changes in children exposed to mine fire smoke in infancy. Respirology 2024; 29:295-303. [PMID: 38219238 DOI: 10.1111/resp.14657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 12/12/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND AND OBJECTIVE Chronic, low-intensity air pollution exposure has been consistently associated with reduced lung function throughout childhood. However, there is limited research regarding the implications of acute, high-intensity air pollution exposure. We aimed to determine whether there were any associations between early life exposure to such an episode and lung growth trajectories. METHODS We conducted a prospective cohort study of children who lived in the vicinity of the Hazelwood coalmine fire. Lung function was measured using respiratory oscillometry. Z-scores were calculated for resistance (R5 ) and reactance at 5 Hz (X5 ) and area under the reactance curve (AX). Two sets of analyses were conducted: (i) linear regression to assess the cross-sectional relationship between post-natal exposure to mine fire-related particulate matter with an aerodynamic diameter of less than 2.5 micrometres (PM2.5 ) and lung function at the 7-year follow-up and (ii) linear mixed-effects models to determine whether there was any association between exposure and changes in lung function between the 3- and 7-year follow-ups. RESULTS There were no associations between mine fire-related PM2.5 and any of the lung function measures, 7-years later. There were moderate improvements in X5 (β: -0.37 [-0.64, -0.10] p = 0.009) and AX (β: -0.40 [-0.72, -0.08] p = 0.014), between the 3- and 7-year follow-ups that were associated with mean PM2.5 , in the unadjusted and covariance-adjusted models. Similar trends were observed with maximum PM2.5 . CONCLUSION There was a moderate improvement in lung stiffness of children exposed to PM2.5 from a local coalmine fire in infancy, consistent with an early deficit in lung function at 3-years after the fire that had resolved by 7-years.
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Affiliation(s)
- Emily J Hemstock
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- Centre for Air Pollution, Energy and Health Research, NHMRC CRE, New South Wales, Australia
| | - Rachel E Foong
- Children's Lung Health, Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands, Western Australia, Australia
- School of Physiotherapy and Exercise Science, Curtin University, Bentley, Western Australia, Australia
| | - Graham L Hall
- Children's Lung Health, Wal-yan Respiratory Research Centre, Telethon Kids Institute, Nedlands, Western Australia, Australia
- School of Physiotherapy and Exercise Science, Curtin University, Bentley, Western Australia, Australia
| | - Amanda J Wheeler
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- Commonwealth Scientific and Industrial Research Organization, Melbourne, Victoria, Australia
| | - Shyamali C Dharmage
- Centre for Air Pollution, Energy and Health Research, NHMRC CRE, New South Wales, Australia
- School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Marita Dalton
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Grant J Williamson
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Caroline Gao
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Centre for Youth Mental Health (Orygen), University of Melbourne, Parkville, Victoria, Australia
| | - Michael J Abramson
- Centre for Air Pollution, Energy and Health Research, NHMRC CRE, New South Wales, Australia
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Fay H Johnston
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- Centre for Air Pollution, Energy and Health Research, NHMRC CRE, New South Wales, Australia
| | - Graeme R Zosky
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
- Centre for Air Pollution, Energy and Health Research, NHMRC CRE, New South Wales, Australia
- Tasmanian School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
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Nosratabadi AR, Gustafsson M, Lovén K, Ljunggren SA, Olofsson U, Abbasi S, Blomqvist G, Karlsson H, Ljungman AG, Cassee FR, Gerlofs-Nijland ME, Gudmundsson A. Airway contraction and cytokine release in isolated rat lungs induced by wear particles from the road and tire interface and road vehicle brakes. Inhal Toxicol 2023; 35:309-323. [PMID: 38054445 DOI: 10.1080/08958378.2023.2289018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 11/17/2023] [Indexed: 12/07/2023]
Abstract
The dominant road traffic particle sources are wear particles from the road and tire interface, and from vehicle brake pads. The aim of this work was to investigate the effect of road and brake wear particles on pulmonary function and biomarkers in isolated perfused rat lungs. Particles were sampled from the studded tire wear of three road pavements containing different rock materials in a road simulator; and from the wear of two brake pad materials using a pin-on-disk machine. Isolated rat lungs inhaled the coarse and fine fractions of the sampled particles resulting in an estimated total particle lung dose of 50 μg. The tidal volume (TV) was measured during the particle exposure and the following 50 min. Perfusate and BALF were analyzed for the cytokines TNF, CXCL1 and CCL3. The TV of lungs exposed to rock materials was significantly reduced after 25 min of exposure compared to the controls, for quartzite already after 4 min. The particles of the heavy-duty brake pads had no effect on the TV. Brake particles resulted in a significant elevation of CXCL1 in the perfusate. Brake particles showed significant elevations of all three measured cytokines, and quartzite showed a significant elevation of TNF in BALF. The study shows that the toxic effect on lungs exposed to airborne particles can be investigated using measurements of tidal volume. Furthermore, the study shows that the choice of rock material in road pavements has the potential to affect the toxicity of road wear PM10.
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Affiliation(s)
- Ali Reza Nosratabadi
- Occupational and Environmental Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Mats Gustafsson
- Swedish National Road and Transport Research Institute (VTI), Linköping, Sweden
| | - Karin Lovén
- Ergonomics and Aerosol Technology, Design Sciences, Lund University, Lund, Sweden
| | - Stefan A Ljunggren
- Occupational and Environmental Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Ulf Olofsson
- School of Industrial Engineering and Management, Department of Machine Design, Royal Institute of Technology (KTH), Stockholm, Sweden
| | - Saeed Abbasi
- School of Industrial Engineering and Management, Department of Machine Design, Royal Institute of Technology (KTH), Stockholm, Sweden
| | - Göran Blomqvist
- Swedish National Road and Transport Research Institute (VTI), Linköping, Sweden
| | - Helen Karlsson
- Occupational and Environmental Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Anders G Ljungman
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Flemming R Cassee
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | | | - Anders Gudmundsson
- Ergonomics and Aerosol Technology, Design Sciences, Lund University, Lund, Sweden
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Chen J, Zeng Y, Lau AK, Guo C, Wei X, Lin C, Huang B, Lao XQ. Chronic exposure to ambient PM 2.5/NO 2 and respiratory health in school children: A prospective cohort study in Hong Kong. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 252:114558. [PMID: 36696726 DOI: 10.1016/j.ecoenv.2023.114558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/08/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
Despite increasing concerns about the detrimental effects of air pollution on respiratory health, limited evidence is available on these effects in the Hong Kong population, especially in children. In this prospective cohort study between 2012 and 2017, we aimed to investigate the associations between exposure to air pollution (concentrations of fine particulate matter [PM2.5] and nitrogen dioxide [NO2]) and respiratory health (lung function parameters and respiratory diseases and symptoms) in schoolchildren. We recruited 5612 schoolchildren aged 6-16 years in Hong Kong. We estimated the annual average concentrations of ambient PM2.5 and NO2 at each participant's address using spatiotemporal models. We conducted spirometry tests on all participants to measure their lung function parameters and used a self-administered questionnaire to collect information on their respiratory diseases and symptoms and a wide range of covariates. Linear mixed models were used to investigate the associations between exposure to air pollution and lung function. Mixed-effects logistic regression models with random effects were used to investigate the associations of exposure to air pollution with respiratory diseases and symptoms. In all of the participants, every 5-μg/m3 increase in the ambient PM2.5 concentration was associated with changes of - 13.90 ml (95 % confidence interval [CI]: -23.65 ml, -4.10 ml), - 4.20 ml (-15.60 ml, 7.15 ml), 27.20 ml/s (-3.95 ml/s, 58.35 ml/s), and - 19.80 ml/s (-38.35 ml/s, -1.25 ml/s) in forced expiratory volume in 1 s, forced vital capacity, peak expiratory flow, and maximal mid-expiratory flow, respectively. The corresponding lung function estimates for every 5-μg/m3 increase in the ambient NO2 concentration were - 2.70 ml (-6.05 ml, 0.60 ml), - 1.40 ml (-5.40 ml, 2.60 ml), - 6.60 ml/s (-19.75 ml/s, 6.55 ml/s), and - 3.05 ml/s (-11.10 ml/s, 5.00 ml/s), respectively. We did not observe significant associations between PM2.5/NO2 exposure and most respiratory diseases and symptoms. Stratified analyses by sex and age showed that the associations between exposure to air pollution and lung function parameters were stronger in male participants and older participants (11-14 year old group) than in female participants and younger participants (6-10 year old group), respectively. Our results suggest that chronic exposure to air pollution is detrimental to the respiratory health of schoolchildren, especially that of older boys. Our findings reinforce the importance of air pollution mitigation to protect schoolchildren's respiratory health.
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Affiliation(s)
- Jinjian Chen
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Yiqian Zeng
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Alexis Kh Lau
- Division of Environment and Sustainability, the Hong Kong University of Science and Technology, Hong Kong, China; Department of Civil and Environmental Engineering, the Hong Kong University of Science and Technology, Hong Kong, China
| | - Cui Guo
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China; Department of Urban Planning and Design, Faculty of Architecture, the University of Hong Kong, Hong Kong SAR
| | - Xianglin Wei
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Changqing Lin
- Division of Environment and Sustainability, the Hong Kong University of Science and Technology, Hong Kong, China
| | - Bo Huang
- Department of Geography and Resource Management, the Chinese University of Hong Kong, Hong Kong, China
| | - Xiang Qian Lao
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China; Department of Biomedical Sciences, the City University of Hong Kong, Hong Kong, China; School of Public Health, Zhengzhou University, Zhengzhou, China.
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Air Pollution and Child Lung Health: Critical Thresholds at Critical Times. Ann Am Thorac Soc 2022; 19:723-725. [PMID: 35486086 PMCID: PMC9116338 DOI: 10.1513/annalsats.202202-122ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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