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Diurnal variability of delta13C and delta18O of atmospheric CO2 in the urban atmosphere of Kraków, Poland.

Authors
  • Zimnoch, Miroslaw
  • Florkowski, Tadeusz
  • Necki, Jaroslaw
  • Neubert, Rolf
Type
Published Article
Journal
Isotopes in environmental and health studies
Publication Date
Jun 01, 2004
Volume
40
Issue
2
Pages
129–143
Identifiers
PMID: 15223666
Source
Medline
License
Unknown

Abstract

This article presents the results of measurements of the isotopic composition and concentration of atmospheric carbon dioxide, performed on air samples from Kraków (Southern Poland) in different seasons of the year. A simple isotope mass balance model has been applied to determine the contributions of different sources of CO2 to the urban atmosphere of Kraków city: the latitudinal/regional background, biospheric contributions and anthropogenic emissions. The calculations show that during the summer and early autumn the dominant contribution to local CO2 peaks is the biosphere, making up to 20% of atmospheric CO2 during the nocturnal temperature inversion in the lower troposphere. During early spring and winter, anthropogenic emissions are the main local source.

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