To investigate the association between short-term exposure to atmospheric black carbon and acute exacerbations of childhood asthma.
Key Findings:
Black carbon exposure was significantly associated with acute asthma exacerbations at a 3-day lag (aOR = 1.2089, 95% CI: 1.0348–1.4122).
The risk of exacerbations increased with rising black carbon concentrations.
Interaction effects were observed between black carbon and PM2.5 components including sulfate, nitrate, and ammonium.
Mixed exposure to pollutants was positively associated with acute asthma exacerbations, with black carbon identified as a critical factor.
Black carbon exposure in winter was more likely to trigger acute asthma exacerbations.
Interpretation:
Short-term exposure to black carbon is significantly linked to acute asthma exacerbations in children, particularly at a 3-day lag and more pronounced in winter.
Limitations:
Conclusion:
The study highlights the significant association between short-term black carbon exposure and acute asthma exacerbations in children.
Guidance addresses office readiness, recommended equipment and medications, and team communication processes for infrequent but high-acuity emergencies.
