Overview of NO2 pollution level in the lower Danube basin during DANS measurements campaign

  • Adrian Rosu “Dunarea de Jos“ University of Galati
  • Bogdan Roșu “Dunarea de Jos“ University of Galati
  • Daniel Eduard Constantin “Dunarea de Jos“ University of Galati
  • Mirela Voiculescu “Dunarea de Jos“ University of Galati
  • Maxim Arseni “Dunarea de Jos“ University of Galati
  • Valentina Calmuc “Dunarea de Jos“ University of Galati
  • Cătălina Iticescu “Dunarea de Jos“ University of Galati
  • Puiu Lucian Georgescu “Dunarea de Jos“ University of Galati
DOI: https://doi.org/10.35219/ann-ugal-math-phys-mec.2018.2.08
Keywords: mobile DOAS measurements, NO2, VCD, GIS

Abstract

The aim of this paper is to quantify the NO2 level in the lower Danube basin area based on measurements using a mobile DOAS (Differential Optical Absorption Spectroscopy) system. The DOAS system used in this study is composed of an UV-Vis spectrometer for recording the sunlight spectra mounted on a car, as mobile platform. Mobile DOAS measurements were performed in October 2018 around and inside the cities of Galati, Braila, Tulcea, in rural areas and remote areas that are far from cities and other major sources of nitrogen oxide, in order to observe how the pollution level varies in the case of these zones. The measurement tracks show the NO2 distribution in different zones of the lower Danube basin. The values of the NO2 tropospheric densities are extracted from measurements of the mobile DOAS system by using a simple approach. Thus, all the measurements were performed at noon, when the sunlight path is almost perpendicular to the ground surface and therefore, the performed measurements are more sensitive in detecting the vertical column densities (VCD) of trace gases from the troposphere. A GIS (Geographic Information System) software was used to plot the results of the measurements as spatial distribution maps for each track.

Author Biographies

Adrian Rosu, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Bogdan Roșu, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Daniel Eduard Constantin, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Mirela Voiculescu, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Maxim Arseni, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Valentina Calmuc, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Cătălina Iticescu, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Puiu Lucian Georgescu, “Dunarea de Jos“ University of Galati

Faculty of Sciences and Environment, European Centre of Excellence for the Environment, ”Dunarea de Jos” University of Galati, Romania

Published
2018-11-21
How to Cite
Rosu, A., Roșu, B., Constantin, D., Voiculescu, M., Arseni, M., Calmuc, V., Iticescu, C. and Georgescu, P. (2018) “Overview of NO2 pollution level in the lower Danube basin during DANS measurements campaign”, Analele Universității ”Dunărea de Jos” din Galați. Fascicula II, Matematică, fizică, mecanică teoretică / Annals of the ”Dunarea de Jos” University of Galati. Fascicle II, Mathematics, Physics, Theoretical Mechanics, 41(2), pp. 163-170. doi: https://doi.org/10.35219/ann-ugal-math-phys-mec.2018.2.08.
Issue
Vol 41 No 2 (2018)
Section
Articles

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