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| Titel |
Tula industrial complex (Mexico) emissions of SO2 and NO2 during the MCMA 2006 field campaign using a mobile mini-DOAS system |
| VerfasserIn |
C. Rivera, G. Sosa, H. Wöhrnschimmel, B. Foy, M. Johansson, B. Galle |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 9, no. 17 ; Nr. 9, no. 17 (2009-09-02), S.6351-6361 |
| Datensatznummer |
250007604
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| Publikation (Nr.) |
 copernicus.org/acp-9-6351-2009.pdf |
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| Zusammenfassung |
| The Mexico City Metropolitan Area (MCMA) has presented severe pollution
problems for many years. There are several point and mobile emission sources
inside and outside the MCMA which are known to affect air quality in the
area. In particular, speculation has risen as to whether the Tula industrial
complex, located 60 km northwest of the MCMA has any influence on high
SO2 levels occurring on the northern part of the city, in the winter
season mainly. As part of the MILAGRO Field Campaign, from 24 March to 17
April 2006, the differential vertical columns of sulfur dioxide (SO2)
and nitrogen dioxide (NO2) were measured during plume transects in the
neighborhood of the Tula industrial complex using mobile mini-DOAS
instruments. Vertical profiles of wind speed and direction obtained from
pilot balloons and radiosondes were used to calculate SO2 and NO2
emissions. According to our measurements, calculated average emissions of
SO2 and NO2 during the field campaign were 384±103 and 24±7 tons day−1,
respectively. The standard deviation of these
estimations is due to actual variations in the observed emissions from the
refinery and power plant, as well as to the uncertainty in the wind fields
at the exact time of the measurements. Reported values in recent inventories
were found to be in good agreement with calculated emissions during the
field campaign. Our measurements were also found to be in good agreement
with simulated plumes. |
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