Articles | Volume 16, issue 17
https://doi.org/10.5194/acp-16-11465-2016
https://doi.org/10.5194/acp-16-11465-2016
Research article
 | 
14 Sep 2016
Research article |  | 14 Sep 2016

Trends in atmospheric ammonia at urban, rural, and remote sites across North America

Xiaohong Yao and Leiming Zhang

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Short summary
Atmospheric NH3 plays an important role in forming secondary aerosols and has a direct impact on sensitive ecosystems. This study aims to study its long-term variation and find that the long-term trend can be affected by climate change as well as other anthropogenic factors, depending on sites. A large percentage increase of atmospheric NH3 at remote American sites is surprising and may cause a potential threat to sensitive ecosystems in the future.
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