Articles | Volume 20, issue 19
https://doi.org/10.5194/acp-20-11551-2020
https://doi.org/10.5194/acp-20-11551-2020
Research article
 | 
09 Oct 2020
Research article |  | 09 Oct 2020

Characterizing the spatiotemporal nitrogen stable isotopic composition of ammonia in vehicle plumes

Wendell W. Walters, Linlin Song, Jiajue Chai, Yunting Fang, Nadia Colombi, and Meredith G. Hastings

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This article details new field observations of the nitrogen stable isotopic composition of ammonia emitted from vehicles conducted in the US and China. Vehicle emissions of ammonia may be a significant source to urban regions with important human health and environmental implications. Our measurements have indicated a consistent isotopic signature from vehicle ammonia emissions. The nitrogen isotopic composition of ammonia may be a useful tool for tracking vehicle emissions.
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