Articles | Volume 21, issue 22
Atmos. Chem. Phys., 21, 17099–17114, 2021
https://doi.org/10.5194/acp-21-17099-2021
Atmos. Chem. Phys., 21, 17099–17114, 2021
https://doi.org/10.5194/acp-21-17099-2021
Research article
25 Nov 2021
Research article | 25 Nov 2021

Chemical composition of nanoparticles from α-pinene nucleation and the influence of isoprene and relative humidity at low temperature

Lucía Caudillo et al.

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Short summary
We performed experiments in the CLOUD chamber at CERN at low temperatures to simulate new particle formation in the upper free troposphere (at −30 ºC and −50 ºC). We measured the particle and gas phase and found that most of the compounds present in the gas phase are detected as well in the particle phase. The major compounds in the particles are C8–10 and C18–20. Specifically, we showed that C5 and C15 compounds are detected in a mixed system with isoprene and α-pinene at −30 ºC, 20 % RH.
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