A model to evaluate ozone distribution and reaction byproducts in aircraft cabin environments.

Junzhou He, Yihui Yin, Jingjing Pei, Yuexia Sun, Zhijian Liu, Qingyan Chen, Xudong Yang

Indoor air 2022 Nov

filter terms:

Ozone and byproducts of ozone-initiated reactions are among the primary pollutants in aircraft cabins. However, investigations of the spatial distribution and reaction mechanisms of these pollutants are insufficient. This study established a computational fluid dynamics-based model to evaluate ozone and byproduct distribution, considering ozone reactions in air, adsorption onto surfaces, and byproduct desorption from surfaces. The model was implemented in an authentic single-aisle aircraft cabin and validated by measurements recorded during the aircraft cruise phase. Ozone concentrations in the supply air-dominated area were approximately 50% higher than that in the passenger breathing zone, suggesting that human surfaces represent a significant ozone sink. The deposition velocity onto human bodies was 21.83 m/h, surpassing 3.97 m/h on other cabin interior surface areas. Our model provides a mechanistic tool to analyze ozone and byproduct concentration distributions, which would be useful for assessing passenger health risks and for developing strategies for healthier aircraft cabin environments. © 2022 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Citation

Junzhou He, Yihui Yin, Jingjing Pei, Yuexia Sun, Zhijian Liu, Qingyan Chen, Xudong Yang. A model to evaluate ozone distribution and reaction byproducts in aircraft cabin environments. Indoor air. 2022 Nov;32(11):e13178