Articles | Volume 16, issue 5
Atmos. Chem. Phys., 16, 3577–3594, 2016
https://doi.org/10.5194/acp-16-3577-2016
Atmos. Chem. Phys., 16, 3577–3594, 2016
https://doi.org/10.5194/acp-16-3577-2016

Research article 17 Mar 2016

Research article | 17 Mar 2016

The importance of vehicle emissions as a source of atmospheric ammonia in the megacity of Shanghai

Yunhua Chang et al.

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Cited articles

Aneja, V. P., Chauhan, J. P., and Walker, J. T.: Characterization of atmospheric ammonia emissions from swine waste storage and treatment lagoons, J. Geophys. Res., 105, 11535–11545, https://doi.org/10.1029/2000JD900066, 2000.
Asman, W. A., Sutton, M. A., and Schjørring, J. K.: Ammonia: emission, atmospheric transport and deposition, New Phytol., 139, 27–48, https://doi.org/10.1046/j.1469-8137.1998.00180.x, 1998.
Bari, A., Ferraro, V., Wilson, L. R., Luttinger, D., and Husain, L.: Measurements of gaseous HONO, HNO3, SO2, HCl, NH3, particulate sulfate and PM2.5 in New York, NY, Atmos. Environ., 37, 2825–2835, https://doi.org/10.1016/S1352-2310(03)00199-7, 2003.
Behera, S. N., Sharma, M., Aneja, V. P., and Balasubramanian, R.: Ammonia in the atmosphere: a review on emission sources, atmospheric chemistry and deposition on terrestrial bodies, Environ. Sci. Pollut. R. Int., 20, 8092–8131, https://doi.org/10.1007/s11356-013-2051-9, 2013.
Bettez, N. D., Marino, R., Howarth, R. W., and Davidson, E. A.: Roads as nitrogen deposition hot spots, Biogeochem., 114, 149–163, https://doi.org/10.1007/s10533-013-9847-z, 2013.
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This study linked a long-term and near real-time measurement of NH3 at one of China’s flagship supersites with a vehicle source-specific campaign performed inside and outside of a major freeway tunnel in Shanghai. Our results clearly show that vehicle emissions associated with combustion are an important NH3 source in Shanghai urban areas and may have potential implications for PM2.5 pollution in the urban atmosphere.
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