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| Titel |
Air pollution of Moscow by the carbon monoxide and aerosols, boundary layer parameters and estimation of the CO sources intensity. |
| VerfasserIn |
V. Rakitin, E. Fokeeva, R. Kuznetsov, A. Emilenko, V. Kopeikin |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250019479
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| Zusammenfassung |
| The results of measurements of the carbon monoxide total content, the soot and submicron
aerosols content are given for the period 2005-2008 over Moscow. Two identical grating
spectrometers of medium resolution (0,2sm-1) are used with appropriate solar tracking
systems, one of which is located outside the city at Zvenigorod Scientific Station (ZSS 56oN,
38oE, 60km West from Moscow in the rural zone) and the other one is inside a city center.
This method makes possible to determine the characteristics of anthropogenic pollution,
urban part of the CO content. Some simultaneously measurements of aerosols content, the
CO column and CO background concentrations in Moscow, autumn 2007 are presented.
Nephelometer and quartz filters for soot sampling were used for aerosols measurements.
Correlations coefficients between aerosols, CO background concentration and urban part of
the CO content were obtained. Permanent sounding of boundary layer was carried out using
acoustic locator (SODAR) LATAN-3. Applications of SODAR data (profile of wind
speed and inversion height) makes possible to forecast of air pollution situations in
megacities area. We obtained the correlation coefficients for the urban part of the
CO content with the wind speed for cold and warm seasons. Analysis results of
measurements demonstrated preeminent influence of the wind in certain boundary layer (up
to 500m) upon the CO extension. The intensity of CO sources in Moscow was
estimated. The systematization of CO diurnal variations for different meteorological
conditions was performed. Comparing our results with the results of the earlier
measurements period (1993-2005), we found out that the urban part of the CO content in the
surface air layer over the city did not increase in spite of more than tripled number of
motor-vehicles in Moscow. So using the applications of this spectroscopic method we
can obtain the air pollution trend from the averaged air pollution measured values. |
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