The present study investigates the impact of building façade geometrical details on pollutant transport mechanism in long street canyons. Large-eddy simulations (LES), extensively validated with experiments, are performed for four cases: (i) canyon without balconies, (ii) balconies at both windward and leeward façades, only (iv) façade. results show that can strongly affect wind flow field disp...

Atmospheric processes affecting air quality are very complicated, and scientific understanding of these processes has been evolving rapidly. To successfully simulate concentration levels and changes of atmospheric pollutants, it is highly desirable to have air quality models with full and flexible modularity at the science process level. Such a modular air quality model would significantly enha...