Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase

Jonna Kannosto, Pasi Yli-Pirilä, Li-Qing Hao, Jani Leskinen, Jorma Jokiniemi, Jyrki M. Mäkelä, Jorma Joutsensaari, Ari Laaksonen, Douglas R. Worsnop, Jorma Keskinen, Annele Virtanen

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Electrical Low Pressure Impactor (ELPI) was used to study the physical phase of fresh secondary-organic-aerosol (SOA) particles formed by the ozonolysis of pure α-pinene in a chamber. The particles bounced from smooth impactor plates towards lower impactor stages, indicating a solid physical state. These particles had a similar bouncing ability as Scots pine-derived particles in previous studies. The measured bounce factor of large particles (diameter > 40 nm) did not significantly change during the particle growth, indicating no changes in the particle solidity. For the smallest particles, the calculated bounce factor increased as the particles grew. The smallest particles were less solid (i.e. having lower viscosity) than the larger ones. The maximum value of the bounce factor decreased for consequent impactor stages. According to a simplified model, this can be explained by a combination of bounce probability and charge transfer between the particles and the impactor surface if at least 50% particles are bouncing.
Original languageEnglish
Pages (from-to)329-340
JournalBoreal Environment Research
Volume18
Issue number3-4
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

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physical phases
aerosols
Aerosols
Viscosity
Particles (particulate matter)
aerosol
Pressure
Growth
Charge transfer
particle
ozonolysis

Cite this

Kannosto, J., Yli-Pirilä, P., Hao, L-Q., Leskinen, J., Jokiniemi, J., Mäkelä, J. M., ... Virtanen, A. (2013). Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase. Boreal Environment Research, 18(3-4), 329-340.
Kannosto, Jonna ; Yli-Pirilä, Pasi ; Hao, Li-Qing ; Leskinen, Jani ; Jokiniemi, Jorma ; Mäkelä, Jyrki M. ; Joutsensaari, Jorma ; Laaksonen, Ari ; Worsnop, Douglas R. ; Keskinen, Jorma ; Virtanen, Annele. / Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase. In: Boreal Environment Research. 2013 ; Vol. 18, No. 3-4. pp. 329-340.
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title = "Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase",
abstract = "Electrical Low Pressure Impactor (ELPI) was used to study the physical phase of fresh secondary-organic-aerosol (SOA) particles formed by the ozonolysis of pure α-pinene in a chamber. The particles bounced from smooth impactor plates towards lower impactor stages, indicating a solid physical state. These particles had a similar bouncing ability as Scots pine-derived particles in previous studies. The measured bounce factor of large particles (diameter > 40 nm) did not significantly change during the particle growth, indicating no changes in the particle solidity. For the smallest particles, the calculated bounce factor increased as the particles grew. The smallest particles were less solid (i.e. having lower viscosity) than the larger ones. The maximum value of the bounce factor decreased for consequent impactor stages. According to a simplified model, this can be explained by a combination of bounce probability and charge transfer between the particles and the impactor surface if at least 50{\%} particles are bouncing.",
author = "Jonna Kannosto and Pasi Yli-Piril{\"a} and Li-Qing Hao and Jani Leskinen and Jorma Jokiniemi and M{\"a}kel{\"a}, {Jyrki M.} and Jorma Joutsensaari and Ari Laaksonen and Worsnop, {Douglas R.} and Jorma Keskinen and Annele Virtanen",
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Kannosto, J, Yli-Pirilä, P, Hao, L-Q, Leskinen, J, Jokiniemi, J, Mäkelä, JM, Joutsensaari, J, Laaksonen, A, Worsnop, DR, Keskinen, J & Virtanen, A 2013, 'Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase', Boreal Environment Research, vol. 18, no. 3-4, pp. 329-340.

Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase. / Kannosto, Jonna; Yli-Pirilä, Pasi; Hao, Li-Qing; Leskinen, Jani; Jokiniemi, Jorma; Mäkelä, Jyrki M.; Joutsensaari, Jorma; Laaksonen, Ari; Worsnop, Douglas R.; Keskinen, Jorma; Virtanen, Annele.

In: Boreal Environment Research, Vol. 18, No. 3-4, 2013, p. 329-340.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase

AU - Kannosto, Jonna

AU - Yli-Pirilä, Pasi

AU - Hao, Li-Qing

AU - Leskinen, Jani

AU - Jokiniemi, Jorma

AU - Mäkelä, Jyrki M.

AU - Joutsensaari, Jorma

AU - Laaksonen, Ari

AU - Worsnop, Douglas R.

AU - Keskinen, Jorma

AU - Virtanen, Annele

PY - 2013

Y1 - 2013

N2 - Electrical Low Pressure Impactor (ELPI) was used to study the physical phase of fresh secondary-organic-aerosol (SOA) particles formed by the ozonolysis of pure α-pinene in a chamber. The particles bounced from smooth impactor plates towards lower impactor stages, indicating a solid physical state. These particles had a similar bouncing ability as Scots pine-derived particles in previous studies. The measured bounce factor of large particles (diameter > 40 nm) did not significantly change during the particle growth, indicating no changes in the particle solidity. For the smallest particles, the calculated bounce factor increased as the particles grew. The smallest particles were less solid (i.e. having lower viscosity) than the larger ones. The maximum value of the bounce factor decreased for consequent impactor stages. According to a simplified model, this can be explained by a combination of bounce probability and charge transfer between the particles and the impactor surface if at least 50% particles are bouncing.

AB - Electrical Low Pressure Impactor (ELPI) was used to study the physical phase of fresh secondary-organic-aerosol (SOA) particles formed by the ozonolysis of pure α-pinene in a chamber. The particles bounced from smooth impactor plates towards lower impactor stages, indicating a solid physical state. These particles had a similar bouncing ability as Scots pine-derived particles in previous studies. The measured bounce factor of large particles (diameter > 40 nm) did not significantly change during the particle growth, indicating no changes in the particle solidity. For the smallest particles, the calculated bounce factor increased as the particles grew. The smallest particles were less solid (i.e. having lower viscosity) than the larger ones. The maximum value of the bounce factor decreased for consequent impactor stages. According to a simplified model, this can be explained by a combination of bounce probability and charge transfer between the particles and the impactor surface if at least 50% particles are bouncing.

M3 - Article

VL - 18

SP - 329

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JO - Boreal Environment Research

JF - Boreal Environment Research

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Kannosto J, Yli-Pirilä P, Hao L-Q, Leskinen J, Jokiniemi J, Mäkelä JM et al. Bounce characteristics of α-pinene-derived SOA particles with implications to physical phase. Boreal Environment Research. 2013;18(3-4):329-340.