Analysis of full-scale data obtained in a street canyon
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2007
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| _version_ | 1876442869140553728 |
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| author | N. A. Mazzeo |
| author_facet | N. A. Mazzeo |
| contents | Analysis of full-scale data obtained in a street canyon N. A. Mazzeo L. E. Venegas P. B. Martin Biología street canyons Urban air quality traffic pollution In urban areas high air pollutant concentrations may be observed, mostly within street canyons, wherebuildings and other obstacles disturb the airflow and turbulence. Air motions inside the street canyons areinfluenced by aerodynamic and thermal effects and by the movements of the vehicles. In this article, weanalyze hourly CO and NOx concentrations measured at 1.5 m height on the west side of a street canyon ofGöttinger Strasse in Hannover (Germany) and background CO and NOx, wind speed and direction that have been measured on the roof of a nearby building. Information of traffic flow in the street is also available.Results show the presence of a vortex cell inside the street canyon when the ambient wind is greater than1.8 m/s and is mainly perpendicular to the street axis. We evaluated of the relative influence of ambient andtraffic-induced turbulences on local concentrations inside the canyon. The results show that traffic-inducedturbulence becomes important when the wind is lower than 2 m/s 2007 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56520106 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.1 Vol.20 |
| format | Artículo científico |
| id | redalyc_56520106 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Analysis of full-scale data obtained in a street canyon N. A. Mazzeo Biología street canyons Urban air quality traffic pollution Analysis of full-scale data obtained in a street canyon N. A. Mazzeo L. E. Venegas P. B. Martin Biología street canyons Urban air quality traffic pollution In urban areas high air pollutant concentrations may be observed, mostly within street canyons, wherebuildings and other obstacles disturb the airflow and turbulence. Air motions inside the street canyons areinfluenced by aerodynamic and thermal effects and by the movements of the vehicles. In this article, weanalyze hourly CO and NOx concentrations measured at 1.5 m height on the west side of a street canyon ofGöttinger Strasse in Hannover (Germany) and background CO and NOx, wind speed and direction that have been measured on the roof of a nearby building. Information of traffic flow in the street is also available.Results show the presence of a vortex cell inside the street canyon when the ambient wind is greater than1.8 m/s and is mainly perpendicular to the street axis. We evaluated of the relative influence of ambient andtraffic-induced turbulences on local concentrations inside the canyon. The results show that traffic-inducedturbulence becomes important when the wind is lower than 2 m/s 2007 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56520106 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.1 Vol.20 |
| title | Analysis of full-scale data obtained in a street canyon |
| topic | Biología street canyons Urban air quality traffic pollution |
| url | https://www.redalyc.org/articulo.oa?id=56520106 |