Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/58432
Type of publication: Tezės kitose duomenų bazėse / Theses in other databases (T1c)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Miškinytė, Auksė;Dėdelė, Audrius
Title: The measurements of nitrogen dioxide pollution in street canyons
Is part of: ICAPC 2017 : 19th international conference on air pollution and control, London, United Kingdom, May 25 - 26, 2017 : abstracts. Zurich : WASET, 2017, Vol. 19(5)
Extent: p. 3370-3370
Date: 2017
Note: ISSN 2010-3778 (Electronic)
Keywords: Air pollution;Nitrogen dioxide;Passive sample
Abstract: The impact of urban air pollution on human health effects has been revealed in epidemiological studies, which have assessed the associations between various types of gases and particles and negative health outcomes. The percentage of population living in urban areas is increasing and the assessment of air pollution in certain zones in the city (like street canyons) that have higher level of air pollution and specific dispersion conditions is essential as these places tend to contain a lot of people. Street canyon is defined as a street surrounded by tall buildings on both sides that trapes traffic emissions and prevents pollution dispersion. The aim of this study was to determine the pollution of nitrogen dioxide in street canyons in Kaunas city during cold and warm seasons. The measurements were conducted using passive sampling technique during two-week period in two street canyon sites, whose axes are approximately north-south and north-northeast‒south-southwest. Both of these streets are two-lane roads of 7 meters width, one is in the central part of the city and other is in the Old Town. The results of two-week measurements showed that the concentration of nitrogen dioxide was higher in summer season than in winter in both street canyon sites. The difference between the level of NO2 in winter and summer seasons was 5.1 and 19.4 μg/m3 in the first and in the second street canyon sites, respectively. The higher concentration of NO2 was determined in the second street canyon site than in the first, although there was calculated lower traffic intensity. These results could be related to the certain street canyon characteristics
Internet: https://waset.org/abstracts?q=Dedele&search=Search
Affiliation(s): Aplinkotyros katedra
Gamtos mokslų fakultetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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