Тип публикации: статья из журнала
Год издания: 2009
Идентификатор DOI: 10.1016/j.atmosenv.2008.09.076
Ключевые слова: Urban street canyon, Urban air pollution dispersion, Building arrangements, Air flow, Air, Air pollution, Air quality, Buildings, Capillarity, Computer integrated manufacturing, Dispersion (waves), Flow of fluids, Functions, Liquids, Pollution, Roads and streets, Size distribution, Ultrasonic equipment, Air pollution dispersions, Building densities, Building heights, Building planning, Eastern siberia, Field measurements, Numerical results, Pollutant concentrations, Regulatory requirements, Spatial distribution of, Urban buildings, Wind flows, Mathematical models, airflow, atmospheric pollution, concentration (composition), dispersion, estimation method, numerical model, spatial distribution, street canyon, traffic emission, urban pollution, Eurasia, Krasnoyarsk [Russian Federation], Russian Federation, Siberia
Аннотация: A semi-empirical mathematical model, Urban Street Model (USM), is proposed to efficiently estimate the dispersion of vehicular air pollution in cities. This model describes urban building arrangements by combining building density, building heights and the permeability of building arrangements relative to wind flow. To estimate theПоказать полностьюlevel of air pollution in the city of Krasnoyarsk (in Eastern Siberia), the spatial distribution of pollutant concentrations off roadways is calculated using Markov's processes in USM. The USM-predicted numerical results were compared with field measurements and with results obtained from other frequently used models, CALINE-4 and OSPM. USM consistently yielded the best results. OSPM usually overestimated pollutant concentration values. CALINE-4 consistently underestimated these values. For OSPM, the maximum differences were 160% and for CALINE-4 about 400%. Permeability and building density are necessary parameters for accurately modeling urban air pollution and influencing regulatory requirements for building planning. (C) 2008 Elsevier Ltd. All rights reserved.
Журнал: ATMOSPHERIC ENVIRONMENT
Выпуск журнала: Vol. 43, Is. 2
Номера страниц: 245-252
ISSN журнала: 13522310
Место издания: OXFORD
Издатель: PERGAMON-ELSEVIER SCIENCE LTD