Articles | Volume 22, issue 23
https://doi.org/10.5194/acp-22-15223-2022
https://doi.org/10.5194/acp-22-15223-2022
Measurement report
 | 
30 Nov 2022
Measurement report |  | 30 Nov 2022

Measurement report: Increasing trend of atmospheric ion concentrations in the boreal forest

Juha Sulo, Janne Lampilahti, Xuemeng Chen, Jenni Kontkanen, Tuomo Nieminen, Veli-Matti Kerminen, Tuukka Petäjä, Markku Kulmala, and Katrianne Lehtipalo

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Cited articles

Arnold, F.: Multi-ion complexes in the stratosphere-implications for trace gases and aerosol, Nature, 284, 610–611, 1980. 
Arnold, F.: Atmospheric Ions and Aerosol Formation, Space Sci. Rev., 137, 225–239, 2008. 
Buenrostro Mazon, S., Kontkanen, J., Manninen, H. E., Nieminen, T., Kerminen, V.-K., and Kulmala, M: A long-term comparison of nighttime cluster events and daytime ion formation in a boreal forest, Boreal Env. Res., 21, 242–261, 2016. 
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Short summary
We measured atmospheric ion concentrations continuously in a boreal forest between 2005 and 2021 and observed an increasing interannual trend. The increase in cluster ion concentrations can be largely explained by an overall decreasing level of anthropogenic aerosols in the boreal forest. This suggests that the role of ions in atmospheric new particle formation may be more important in the future.
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