Ozone in the Development of Pediatric Asthma and Atopic Disease - 18/10/22

Doi : 10.1016/j.iac.2022.06.001

Claire E. Atkinson, MD ^a,^{^{1
The authors contributed equally to this work.}}, Matthew J. Kesic, PhD, PA-C ^b,^{^{1
The authors contributed equally to this work.},}^{^{2
Present address: Tracey F. Smith Hall of Nursing & Health Sciences, Room 216H, 143 Main Street, Buies Creek, NC 27506.}}, Michelle L. Hernandez, MD ^a,^⁎
^a Division of Allergy & Immunology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC, USA
^b Campbell University College of Pharmacy & Health Sciences, Physician Assistant Program, Buies Creek, NC, USA

^∗Corresponding author. 5008C Mary Ellen Jones Building, 116 Manning Drive, CB #7231, Chapel Hill, NC 27599-7231.5008C Mary Ellen Jones Building116 Manning Drive, CB #7231Chapel HillNC27599-7231

Résumé

Ozone (O₃) is a ubiquitous outdoor air pollutant, which may be derived from various primary pollutants such as nitrates, hydrocarbons, and volatile organ compounds through ultraviolet radiation exposure, and has been shown to negatively impact respiratory health. O₃ is the most common noninfectious environmental cause of asthma exacerbations among children and adults. Its effects on pediatric respiratory health could be due to multiple physiologic factors that may contribute to enhanced O₃ exposure seen in children compared with adults, including differences in lung surface area per unit of body weight and ventilation rates. O₃ can reach the distal regions of human lungs due to its low water solubility, resulting in either injury or activation of airway epithelial cells and macrophages. Multiple epidemiologic studies have highlighted a link between exposure to air pollution and the development of asthma. This review article specifically focuses on examining the impact of early life O₃ exposure on lung development, lung function, and the risk of developing atopic diseases including asthma, allergic rhinitis, and atopic dermatitis among children.

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Keywords : Asthma, Ozone, Children, Lung function, Allergic rhinitis, Atopic dermatitis