Temperature-Dependent Evaporative Anthropogenic VOC Emissions Significantly Exacerbate Regional Ozone Pollution

Temperature-Dependent Evaporative Anthropogenic VOC Emissions Significantly Exacerbate Regional Ozone Pollution

2024 | Wenlu Wu, Tzung-May Fu, Steve R. Arnold, Dominick V. Spracklen, Aoxing Zhang, Wei Tao, Xiaolin Wang, Yue Hou, Jiajia Mo, Jiongkai Chen, Yumin Li, Xu Feng, Haipeng Lin, Zhijiong Huang, Junyu Zheng, Huizhong Shen, Lei Zhu, Chen Wang, Jianhui Ye, and Xin Yang
Temperature-dependent evaporative anthropogenic volatile organic compound (AVOC) emissions significantly worsen regional ozone pollution. This study evaluated the impact of temperature-dependent AVOC emissions on surface ozone in the Beijing-Tianjin-Hebei (BTH) region of China during summer 2017. The temperature sensitivity of AVOC emissions increased the simulated ozone-temperature sensitivity by 1.0 to 1.8 μg m⁻³ K⁻¹, comparable to that of biogenic VOC emissions (1.7 to 2.4 μg m⁻³ K⁻¹). Ozone enhancements from temperature-induced AVOC increases were localized and more significant in urban areas than in rural regions. Including temperature-dependent AVOC emissions in the model improved simulated ozone-temperature sensitivities on ozone exceedance days. The study highlights the importance of temperature-dependent AVOC emissions in surface ozone pollution and their previously unrepresented role in air pollution-meteorology interactions. The temperature sensitivity of AVOC emissions was modeled using different parametrizations for transportation, solvent use, and nonsolvent-use industrial activities. The results showed that temperature-dependent AVOC emissions contributed significantly to ozone pollution, especially in urban areas. The study also found that temperature-dependent AVOC emissions had a more localized impact on surface ozone compared to BVOC emissions. The inclusion of temperature-dependent AVOC emissions in the model improved the simulated ozone-temperature sensitivity, especially in major cities. The study also highlighted the need to strengthen the control of evaporative emissions of high-reactivity AVOC species, including higher alkenes and aromatics. The results also showed that climate warming could exacerbate ozone pollution even with unchanged anthropogenic activities. The study underscores the importance of considering air pollution-meteorology interactions in long-term air quality projections.Temperature-dependent evaporative anthropogenic volatile organic compound (AVOC) emissions significantly worsen regional ozone pollution. This study evaluated the impact of temperature-dependent AVOC emissions on surface ozone in the Beijing-Tianjin-Hebei (BTH) region of China during summer 2017. The temperature sensitivity of AVOC emissions increased the simulated ozone-temperature sensitivity by 1.0 to 1.8 μg m⁻³ K⁻¹, comparable to that of biogenic VOC emissions (1.7 to 2.4 μg m⁻³ K⁻¹). Ozone enhancements from temperature-induced AVOC increases were localized and more significant in urban areas than in rural regions. Including temperature-dependent AVOC emissions in the model improved simulated ozone-temperature sensitivities on ozone exceedance days. The study highlights the importance of temperature-dependent AVOC emissions in surface ozone pollution and their previously unrepresented role in air pollution-meteorology interactions. The temperature sensitivity of AVOC emissions was modeled using different parametrizations for transportation, solvent use, and nonsolvent-use industrial activities. The results showed that temperature-dependent AVOC emissions contributed significantly to ozone pollution, especially in urban areas. The study also found that temperature-dependent AVOC emissions had a more localized impact on surface ozone compared to BVOC emissions. The inclusion of temperature-dependent AVOC emissions in the model improved the simulated ozone-temperature sensitivity, especially in major cities. The study also highlighted the need to strengthen the control of evaporative emissions of high-reactivity AVOC species, including higher alkenes and aromatics. The results also showed that climate warming could exacerbate ozone pollution even with unchanged anthropogenic activities. The study underscores the importance of considering air pollution-meteorology interactions in long-term air quality projections.
Reach us at info@study.space