Inter-annual Variation of Ambient Ammonia and Related Trace Gases in Delhi, India
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Inter-annual Variation of Ambient Ammonia and Related Trace
Gases in Delhi, India
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| Creator |
Sharma, S. K.
-, Saraswati Mandal, T. K. Saxena, Mohit |
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| Subject |
Earth Sciences
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| Description |
In this study, ambient NH3, NO, NO2, CO and SO2 were measured continuously from February, 2008, to December, 2016. The annual average mixing ratios (mole/mole) of NH3, NO, NO2, CO and SO2 were 17.8 +/- 3.4 ppb; 21.2 +/- 2.3 ppb, 18.1 +/- 3.2 ppb; 1.7 +/- 0.3 ppm and 2.0 +/- 0.3 ppb, respectively. All the trace gases (NH3, NO, NO2, CO and SO2) showed significant annual variation during the study. A significant increasing trend in mixing ratios of ambient NH3 and NO2 were observed at the observational site of Delhi, whereas, increasing trend were recorded in case of NO, CO and NO2 mixing ratios. The results emphasized that traffic could be one of the significant sources of ambient NH3 at the urban site of Delhi, as illustrated by positive correlations of NH3 with traffic related co-pollutants (NO and CO).
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| Publisher |
Springer Verlag
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| Date |
2017-08
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2753/1/Inter-annual%20Variation%20of%20Ambient.pdf
Sharma, S. K. and -, Saraswati and Mandal, T. K. and Saxena, Mohit (2017) Inter-annual Variation of Ambient Ammonia and Related Trace Gases in Delhi, India. Bulletin of Environmental Contamination and Toxicology, 99. pp. 281-285. ISSN 0007-4861 |
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| Relation |
http://npl.csircentral.net/2753/
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