Urban Air Pollution, NOx-O3-VOCs Chemistry, Building Configuration, Ventilation, Radiation
A reduction in traffic emissions (both NOx and VOCs) in equal proportion will impose negative effects on O3 pollution. In order to effectively reduce O3 pollution, we need to pay more attention to controlling VOC emissions.
The increase of street aspect ratio greatly increases the exposure risk of NO2. The exposure risk of O3 in the deep street canyon decreases below Z/H = 0.5 at the windward side. The indoor and pedestrian-level exposure risk of NO2 is much larger than that of O3.
Publications
- J. Liang, L. Zeng, S. Zhou, X. Wang, J. Hua, X. Zhang, Z. Gu and L. He, Combined effects of photochemical processes, pollutant sources and urban configuration on photochemical pollutant concentrations, Sustainability, 15(4): 3281, 2023, doi: 10.3390/su15043281.
- J. Hang, X. Wang, J. Liang, X. Zhang, L. Wu, Y. Du, Y. Zhng, R. Buccolieri, Numerical investigation of the impact of urban trees on O3–NOx–VOCs chemistry and pollutant dispersion in a typical street canyon, Atmos. Environ., 311: 119998, 2023, doi: 10.1016/j.atmosenv.2023.119998.
- J. Hang, J. Liang, X. Wang, X. Zhang, L. Wu and M. Shao, Investigation of O3–NOx–VOCs chemistry and pollutant dispersion in street canyons with various aspect ratios by CFD simulations, Build. Environ., 226: 109667, 2022, doi: 10.1016/j.buildenv.2022.109667.
- Q. Li, J. Liang, Q. Wang, Y. Chen, H. Yang, H. Ling, Z. Luo and J. Hang, Numerical investigations of urban pollutant dispersion and building intake fraction with various 3D building configurations and tree plantings, Int. J. Environ. Res. Public. Health, 19(6): 3524, 2022, doi: 10.3390/ijerph19063524.
- J. Liu, Y. Zhao, C. Lam, J. Liang, H. Ling and Q. Wang, Integrated impacts of solar heating and water evaporation on urban airflows and thermal environments in 2D street canyons, Urban Clim., 48: 101411, 2023, doi: 10.1016/j.uclim.20 23.101411.