Association Between Short-term Exposure to Atmospheric Black Carbon and Acute Exacerbations of Childhood Asthma

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The study investigates the link between short-term atmospheric black carbon exposure and acute asthma exacerbations in children.
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Data on childhood asthma cases were collected from the Xiamen Health and Medical Big Data Center from January 2020 to December 2023.
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A significant association was found between black carbon exposure and acute asthma exacerbations at a 3-day lag, with an adjusted odds ratio of 1.2089.
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Interaction effects were observed between black carbon and PM2.5 components, including sulfate, nitrate, and ammonium, in relation to asthma exacerbations.
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Stratified analysis indicated that black carbon exposure in winter is more likely to trigger acute asthma exacerbations in children.

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