Preprints
https://doi.org/10.5194/acp-2021-135
https://doi.org/10.5194/acp-2021-135

  08 Mar 2021

08 Mar 2021

Review status: this preprint is currently under review for the journal ACP.

Measurement report: Biogenic VOC emissions profiles of Rapeseed leaf litter and their SOA formation potential

Letizia Abis1,a, Carmen Kalalian1, Bastien Lunardelli1, Tao Wang2, Liwu Zhang2, Jianmin Chen2, Sébastien Perrier1, Benjamin Loubet3, Raluca Ciuraru3, and Christian George1 Letizia Abis et al.
  • 1Univ Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, F-69626, Villeurbanne, France
  • 2Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai,200433, Peoples' Republic of China
  • 3INRAE, UMR ECOSYS, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France
  • anow working at: Technische Universität Berlin, Umweltchemie und Luftrinhaltunz, Straße des 17. Juni 135, Berlin, 10623, Germany

Abstract. We analysed the biogenic volatile organic compounds (BVOC) emissions from rapeseed leaves litter and their potential to create secondary organic aerosols (SOA) under three different conditions i.e., (i) in presence of UV light irradiation; (ii) in presence of ozone, and (iii) with both ozone and UV light. These experiments have been performed in a controlled atmospheric simulation chamber containing leaves litter samples, where BVOC and aerosol number concentrations have been measured for 6 days. Our results show that BVOC emission profiles were affected by UV light irradiation, which increased the summed BVOC emissions compared to the experiment with solely O3. Furthermore, the diversity of emitted VOCs from the rapeseed litter increased also in presence of UV light irradiation. SOA formation was observed when leaves litter were exposed to both UV light and O3, indicating a potentially large contribution to particle formation or growth at local scales. To our knowledge, this study investigates for the first time the effect of UV irradiation and O3 exposure on both VOC emissions and SOA formation for leaves litter samples. A detailed discussion about the processes behind the biological production of the most important VOC is proposed.

Letizia Abis et al.

Status: open (until 03 May 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-135', Anonymous Referee #1, 16 Mar 2021 reply
  • RC2: 'Comment on acp-2021-135', Anonymous Referee #2, 05 Apr 2021 reply
  • RC3: 'Comment on acp-2021-135', Anonymous Referee #3, 09 Apr 2021 reply

Letizia Abis et al.

Letizia Abis et al.

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Short summary
The biogenic volatile organic compounds (BVOC) emissions from rapeseed leaves litter has been investigated by means of a controlled atmospheric simulation chamber. The diversity of emitted VOCs increased also in presence of UV light irradiation. SOA formation was observed when leaves litter were exposed to both UV light and O3, indicating a potentially large contribution to particle formation or growth at local scales.
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