DOAS-measurement of the NO<sub>2</sub> formation rate from NO<sub>x</sub> emissions into the atmosphere
In the present work we deal with emissions originating from combustion processes containing SO<sub>2</sub>, NO and NO<sub>2</sub>, emitted into the atmosphere by a localized source. We present a method for measuring the NO<sub>2</sub>-formation rate (due to conver...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2012-05-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | http://www.atmos-meas-tech.net/5/1165/2012/amt-5-1165-2012.pdf |
| Summary: | In the present work we deal with emissions originating from combustion processes containing SO<sub>2</sub>, NO and NO<sub>2</sub>, emitted into the atmosphere by a localized source. We present a method for measuring the NO<sub>2</sub>-formation rate (due to conversion of NO to NO<sub>2</sub>) from measurements of SO<sub>2</sub>- and NO<sub>2</sub>-slant column densities across different plume sections, under the (usually justified) assumption that the SO<sub>2</sub>-flux is constant. The advantages of the proposed method are that the measurements can be performed from an arbitrary location, without explicit reference to the wind speed and direction in the plume. We present results of ground based DOAS-measurements of SO<sub>2</sub> and NO<sub>x</sub> emissions from an oil refinery located in the northern part of Montevideo Bay and give recommendations for future applications of the method. |
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| ISSN: | 1867-1381 1867-8548 |