Formation and growth of atmospheric nanoparticles in the eastern Mediterranean: results from long-term measurements and process simulations

Nikos Kalivitis, Veli-Matti Kerminen, Giorgos Kouvarakis, Iasonas Stavroulas, Evaggelia Tzitzikalaki, Panayiotis Kalkavouras, Nikos Daskalakis, Stelios Myriokefalitakis, Aikaterini Bougiatioti, Hanna E. Manninen, Pontus Roldin, Tuukka Petäjä, Michael Boy, Markku Kulmala, Maria Kanakidou, Nikolaos Mihalopoulos

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Kuvaus

Atmospheric new particle formation (NPF) is a common phenomenon all over the world. In this study we present the longest time series of NPF records in the eastern Mediterranean region by analyzing 10 years of aerosol number size distribution data obtained with a mobility particle sizer. The measurements were performed at the Finokalia environmental research station on Crete, Greece, during the period June 2008-June 2018. We found that NPF took place on 27% of the available days, undefined days were 23% and non-event days 50 %. NPF is more frequent in April and May probably due to the terrestrial biogenic activity and is less frequent in August. Throughout the period under study, nucleation was observed also during the night. Nucleation mode particles had the highest concentration in winter and early spring, mainly because of the minimum sinks, and their average contribution to the total particle number concentration was 8 %. Nucleation mode particle concentrations were low outside periods of active NPF and growth, so there are hardly any other local sources of sub-25 nm particles. Additional atmospheric ion size distribution data simultaneously collected for more than 2 years were also analyzed. Classification of NPF events based on ion spectrometer measurements differed from the corresponding classification based on a mobility spectrometer, possibly indicating a different representation of local and regional NPF events between these two measurement data sets. We used the MALTE-Box model for simulating a case study of NPF in the eastern Mediterranean region. Monoterpenes contributing to NPF can explain a large fraction of the observed NPF events according to our model simulations. However the adjusted parameterization resulting from our sensitivity tests was significantly different from the initial one that had been determined for the boreal environment.
Alkuperäiskielienglanti
LehtiAtmospheric Chemistry and Physics
Vuosikerta19
Numero4
Sivut2671-2686
Sivumäärä16
ISSN1680-7316
DOI - pysyväislinkit
TilaJulkaistu - 1 maaliskuuta 2019
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

Tieteenalat

  • 114 Fysiikka
  • 116 Kemia
  • 1172 Ympäristötiede

Lainaa tätä

Kalivitis, Nikos ; Kerminen, Veli-Matti ; Kouvarakis, Giorgos ; Stavroulas, Iasonas ; Tzitzikalaki, Evaggelia ; Kalkavouras, Panayiotis ; Daskalakis, Nikos ; Myriokefalitakis, Stelios ; Bougiatioti, Aikaterini ; Manninen, Hanna E. ; Roldin, Pontus ; Petäjä, Tuukka ; Boy, Michael ; Kulmala, Markku ; Kanakidou, Maria ; Mihalopoulos, Nikolaos. / Formation and growth of atmospheric nanoparticles in the eastern Mediterranean : results from long-term measurements and process simulations. Julkaisussa: Atmospheric Chemistry and Physics. 2019 ; Vuosikerta 19, Nro 4. Sivut 2671-2686.
@article{b1125880b6334bdd99cb08fec4ad1e49,
title = "Formation and growth of atmospheric nanoparticles in the eastern Mediterranean: results from long-term measurements and process simulations",
abstract = "Atmospheric new particle formation (NPF) is a common phenomenon all over the world. In this study we present the longest time series of NPF records in the eastern Mediterranean region by analyzing 10 years of aerosol number size distribution data obtained with a mobility particle sizer. The measurements were performed at the Finokalia environmental research station on Crete, Greece, during the period June 2008-June 2018. We found that NPF took place on 27{\%} of the available days, undefined days were 23{\%} and non-event days 50 {\%}. NPF is more frequent in April and May probably due to the terrestrial biogenic activity and is less frequent in August. Throughout the period under study, nucleation was observed also during the night. Nucleation mode particles had the highest concentration in winter and early spring, mainly because of the minimum sinks, and their average contribution to the total particle number concentration was 8 {\%}. Nucleation mode particle concentrations were low outside periods of active NPF and growth, so there are hardly any other local sources of sub-25 nm particles. Additional atmospheric ion size distribution data simultaneously collected for more than 2 years were also analyzed. Classification of NPF events based on ion spectrometer measurements differed from the corresponding classification based on a mobility spectrometer, possibly indicating a different representation of local and regional NPF events between these two measurement data sets. We used the MALTE-Box model for simulating a case study of NPF in the eastern Mediterranean region. Monoterpenes contributing to NPF can explain a large fraction of the observed NPF events according to our model simulations. However the adjusted parameterization resulting from our sensitivity tests was significantly different from the initial one that had been determined for the boreal environment.",
keywords = "PARTICLE FORMATION EVENTS, INTERMEDIATE IONS, CHEMICAL-COMPOSITION, NUCLEATION EVENTS, AEROSOL FORMATION, ORGANIC-COMPOUNDS, SIZE DISTRIBUTION, EMISSIONS, REANALYSIS, DYNAMICS, 114 Physical sciences, 116 Chemical sciences, 1172 Environmental sciences",
author = "Nikos Kalivitis and Veli-Matti Kerminen and Giorgos Kouvarakis and Iasonas Stavroulas and Evaggelia Tzitzikalaki and Panayiotis Kalkavouras and Nikos Daskalakis and Stelios Myriokefalitakis and Aikaterini Bougiatioti and Manninen, {Hanna E.} and Pontus Roldin and Tuukka Pet{\"a}j{\"a} and Michael Boy and Markku Kulmala and Maria Kanakidou and Nikolaos Mihalopoulos",
year = "2019",
month = "3",
day = "1",
doi = "10.5194/acp-19-2671-2019",
language = "English",
volume = "19",
pages = "2671--2686",
journal = "Atmospheric Chemistry and Physics",
issn = "1680-7316",
publisher = "COPERNICUS GESELLSCHAFT MBH",
number = "4",

}

Kalivitis, N, Kerminen, V-M, Kouvarakis, G, Stavroulas, I, Tzitzikalaki, E, Kalkavouras, P, Daskalakis, N, Myriokefalitakis, S, Bougiatioti, A, Manninen, HE, Roldin, P, Petäjä, T, Boy, M, Kulmala, M, Kanakidou, M & Mihalopoulos, N 2019, 'Formation and growth of atmospheric nanoparticles in the eastern Mediterranean: results from long-term measurements and process simulations' Atmospheric Chemistry and Physics, Vuosikerta 19, Nro 4, Sivut 2671-2686. https://doi.org/10.5194/acp-19-2671-2019

Formation and growth of atmospheric nanoparticles in the eastern Mediterranean : results from long-term measurements and process simulations. / Kalivitis, Nikos; Kerminen, Veli-Matti; Kouvarakis, Giorgos; Stavroulas, Iasonas; Tzitzikalaki, Evaggelia; Kalkavouras, Panayiotis; Daskalakis, Nikos; Myriokefalitakis, Stelios; Bougiatioti, Aikaterini; Manninen, Hanna E.; Roldin, Pontus; Petäjä, Tuukka; Boy, Michael; Kulmala, Markku; Kanakidou, Maria; Mihalopoulos, Nikolaos.

julkaisussa: Atmospheric Chemistry and Physics, Vuosikerta 19, Nro 4, 01.03.2019, s. 2671-2686.

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Formation and growth of atmospheric nanoparticles in the eastern Mediterranean

T2 - results from long-term measurements and process simulations

AU - Kalivitis, Nikos

AU - Kerminen, Veli-Matti

AU - Kouvarakis, Giorgos

AU - Stavroulas, Iasonas

AU - Tzitzikalaki, Evaggelia

AU - Kalkavouras, Panayiotis

AU - Daskalakis, Nikos

AU - Myriokefalitakis, Stelios

AU - Bougiatioti, Aikaterini

AU - Manninen, Hanna E.

AU - Roldin, Pontus

AU - Petäjä, Tuukka

AU - Boy, Michael

AU - Kulmala, Markku

AU - Kanakidou, Maria

AU - Mihalopoulos, Nikolaos

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Atmospheric new particle formation (NPF) is a common phenomenon all over the world. In this study we present the longest time series of NPF records in the eastern Mediterranean region by analyzing 10 years of aerosol number size distribution data obtained with a mobility particle sizer. The measurements were performed at the Finokalia environmental research station on Crete, Greece, during the period June 2008-June 2018. We found that NPF took place on 27% of the available days, undefined days were 23% and non-event days 50 %. NPF is more frequent in April and May probably due to the terrestrial biogenic activity and is less frequent in August. Throughout the period under study, nucleation was observed also during the night. Nucleation mode particles had the highest concentration in winter and early spring, mainly because of the minimum sinks, and their average contribution to the total particle number concentration was 8 %. Nucleation mode particle concentrations were low outside periods of active NPF and growth, so there are hardly any other local sources of sub-25 nm particles. Additional atmospheric ion size distribution data simultaneously collected for more than 2 years were also analyzed. Classification of NPF events based on ion spectrometer measurements differed from the corresponding classification based on a mobility spectrometer, possibly indicating a different representation of local and regional NPF events between these two measurement data sets. We used the MALTE-Box model for simulating a case study of NPF in the eastern Mediterranean region. Monoterpenes contributing to NPF can explain a large fraction of the observed NPF events according to our model simulations. However the adjusted parameterization resulting from our sensitivity tests was significantly different from the initial one that had been determined for the boreal environment.

AB - Atmospheric new particle formation (NPF) is a common phenomenon all over the world. In this study we present the longest time series of NPF records in the eastern Mediterranean region by analyzing 10 years of aerosol number size distribution data obtained with a mobility particle sizer. The measurements were performed at the Finokalia environmental research station on Crete, Greece, during the period June 2008-June 2018. We found that NPF took place on 27% of the available days, undefined days were 23% and non-event days 50 %. NPF is more frequent in April and May probably due to the terrestrial biogenic activity and is less frequent in August. Throughout the period under study, nucleation was observed also during the night. Nucleation mode particles had the highest concentration in winter and early spring, mainly because of the minimum sinks, and their average contribution to the total particle number concentration was 8 %. Nucleation mode particle concentrations were low outside periods of active NPF and growth, so there are hardly any other local sources of sub-25 nm particles. Additional atmospheric ion size distribution data simultaneously collected for more than 2 years were also analyzed. Classification of NPF events based on ion spectrometer measurements differed from the corresponding classification based on a mobility spectrometer, possibly indicating a different representation of local and regional NPF events between these two measurement data sets. We used the MALTE-Box model for simulating a case study of NPF in the eastern Mediterranean region. Monoterpenes contributing to NPF can explain a large fraction of the observed NPF events according to our model simulations. However the adjusted parameterization resulting from our sensitivity tests was significantly different from the initial one that had been determined for the boreal environment.

KW - PARTICLE FORMATION EVENTS

KW - INTERMEDIATE IONS

KW - CHEMICAL-COMPOSITION

KW - NUCLEATION EVENTS

KW - AEROSOL FORMATION

KW - ORGANIC-COMPOUNDS

KW - SIZE DISTRIBUTION

KW - EMISSIONS

KW - REANALYSIS

KW - DYNAMICS

KW - 114 Physical sciences

KW - 116 Chemical sciences

KW - 1172 Environmental sciences

U2 - 10.5194/acp-19-2671-2019

DO - 10.5194/acp-19-2671-2019

M3 - Article

VL - 19

SP - 2671

EP - 2686

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

SN - 1680-7316

IS - 4

ER -