Abstract
The concentrations of ozone, NO2 and SO2, measured with a DOAS system 70 m above ground level in the city of Graz were compared with data from conventional ground stations. The dependence of vertical trace-gas distributions on stability categories and time of the day or year was investigated. Concerning the maximum ozone concentrations in summer, the DOAS data are representative for the ground-level situation. In average, the concentrations 70 m above ground are more than twice the ground-level concentrations. It has been shown that beside the reaction with NO, dry deposition is an important sink for ozone near the surface. The DOAS NO2-concentrations are representative for ground-level conditions in summer, except for the morning maximum of NO2. In winter the DOAS NO2-concentrations amount for 73% of the ground level values in average. Concerning the slow reacting trace gas SO2, the DOAS data are always representative for the ground-level conditions.
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© 2000 Springer Science+Business Media Dordrecht
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Gobiet, A., Baumgartner, D., Krobath, T., Maderbacher, R., Putz, E. (2000). Urban Air Pollution Monitoring with DOAS Considering the Local Meteorological Situation. In: Sokhi, R.S., San José, R., Moussiopoulos, N., Berkowicz, R. (eds) Urban Air Quality: Measurement, Modelling and Management. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0932-4_13
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DOI: https://doi.org/10.1007/978-94-010-0932-4_13
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