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Type of publication: research article
Type of publication (PDB): Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Laurinavičienė, Dovilė;Januškaitienė, Irena
Title: Nitrogen dioxide concentration in Kaunas 2008–2009
Is part of: Environmental engineering : 8th international conference, May 19-20, 2011, Villnius, Lithuania : selected papers. Vol. 1 : Environmental protection. Vilnius : Technika, 2011
Extent: p. 178–181
Date: 2011
Series/Report no.: (International conference on Environmental engineering (ICEE). 2029-7106)
Keywords: Nitrogen dioxide;Concentration;Distribution maps
ISBN: 9789955288268
Abstract: The aim of the present study was to assess distribution of nitrogen dioxide concentration in Kaunas. A passive sampling method and triethanolamine as an absorbent was used. Sampling was carried out in 62 measurements points of Kaunas city during four different seasons in 2008–2009. According to measured concentration average seasonal and annual concentration of nitrogen dioxide was calculated. The study results showed that mean nitrogen dioxide concentration in Kaunas was 18.1 μgm-3 (2008) and 25.0 μgm-3 (2009). The highest mean seasonal concentration was found during spring seasons (30.7 μgm-3), the lowest – during summer (16.0 μgm-3). The highest nitrogen dioxide concentration was in Centras district (2008 – 32.8 μgm-3 and 2009 – 34.0 μgm-3), lowest in Panemun÷ (2008 – 9.7 μgm-3 and 2009 – 15.7 μgm-3). We found a negative correlation between nitrogen dioxide concentration and precipitation (r= -0.543, p= 0.000). Correlation between nitrogen dioxide concentration and wind speed and temperature was non significant. Using Arc GIS program maps of nitrogen dioxide concentration distribution were plotted. Nitrogen dioxide concentration interpoliation results revealed, that the highest pollution was in Centras, Žaliakalnis, Dainava districts, the lowest was found in areas where lower traffic flows and more green places
Affiliation(s): Aplinkotyros katedra
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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