Polycyclic Aromatic Hydrocarbon (PAHs) were determined in outdoor organic films formed on window glasses inside a street canyon at four different heights. The vertical distribution of PAHs the film and factors responsible for this have been studied. Significant changes concentration levels depending height season observed. concentrations elevated level during cold period. This work provides evi...

In the framework of the German Atmospheric Research Program AFO-2000 a system of consistent coupled numerical models has been developed. The purpose of the model system is to serve as a tool for the execution of European urban air quality regulations. A consortium with the acronym VALIUM was formed, which consisted of German research institutes, environmental consultancies and an environmental ...

This paper presents a sensitivity analysis and an evaluation of the semi-empirical model known as Operational Street Pollution Model (OSPM). The model is capable of calculating airborne concentrations of exhaust gases emitted by vehicles, within a street canyon. OSPM has been extensively evaluated using data collected over a two year period (1994-1995), during a monitoring campaign carried out ...

Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract The Martilli's urban parameterization scheme is improved and implemented in a mesoscale model in order to take into account the typical effects of a real city on the air temperature near the ground and on the surface exchange fluxes. The mesoscale model i...

Outdoor thermal conditions influence the quality of life in urban commons. Urban vegetation is an effective way to improve pedestrian comfort tropics as it provides shade, reduces surface heating, improves air quality, and human health. The primary objective this study understand correlation between Sky View Factor (SVF) modifications Outdoor Thermal Comfort (OTC) that could ...

W. A. Bunn ([email protected]), C. B. Brown and N. J. Sanders, Dept of Ecology and Evolutionary Biology, Univ. of Tennessee, 569 Dabney Hall, Knoxville, TN 37996, USA. (Present address of W. A. B.: USDOI, National Park Service, Grand Canyon National Park, P. O. Box 129, Grand Canyon, AZ 86023, USA.) !M. A. Jenkins, USDOI, National Park Service, Great Smoky Mountains National Park, 1314 Cheroke...