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| Titel |
Observations of SO2 |
| VerfasserIn |
F. C. Wu, P. H. Xie, A. Li, K. L. Chan, A. Hartl, Y. Wang, F. Q. Si, Y. Zeng, M. Qin, J. Xu, J. G. Liu, W. Q. Liu, M. Wenig |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 6, no. 9 ; Nr. 6, no. 9 (2013-09-04), S.2277-2292 |
| Datensatznummer |
250085055
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| Publikation (Nr.) |
 copernicus.org/amt-6-2277-2013.pdf |
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| Zusammenfassung |
| Mobile passive differential optical absorption spectroscopy measurements of
SO2 and NO2 were performed in the Guangzhou eastern area (GEA)
during the Guangzhou Asian Games 2010 from November 2010 to December 2010.
The observations were carried out between 10:00 to 13:00 (local time, i.e.,
during daylight). Spatial and temporal distributions of SO2 and
NO2 in this area were obtained and emission sources were determined
using wind field data. The NO2 vertical column densities were found to
agree with Ozone Monitoring Instrument values. The correlation coefficient (referred to as R2)
was 0.88 after cloud filtering within a specific ground pixel. During the
Guangzhou Asian Games and Asian Paralympics (Para) Games, the SO2 and
NOx emissions in the area were quantified using averaged wind speed and
wind direction. For times outside the games the average SO2 emission
was estimated to be 9.50 ± 0.90 tons per hour and the average NOx
emission was estimated to be 5.87 ± 3.46 tons per hour. During the
phases of the Asian and Asian Para Games, the SO2 and NOx
emissions were reduced by 53.50% and 43.50%, respectively, compared to
the usual condition. We also investigated the influence of GEA on Guangzhou
University Town, the main venue located northwest of the GEA, and found that
SO2 concentrations here were about tripled by emissions from the GEA. |
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