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    Rights statement: This is the author’s version of a work that was accepted for publication in Atmospheric Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Atmospheric Environment, 195, 2018 DOI: 10.1016/j.atmosenv.2018.09.049

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The influence of impactor size cut-off shift caused by hygroscopic growth on particulate matter loading and composition measurements

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The influence of impactor size cut-off shift caused by hygroscopic growth on particulate matter loading and composition measurements. / Chen, Ying; Wild, Oliver; Wang, Yu; Ran, Liang; Teich, Monique; Größ, Johannes; Wang, Lina; Spindler, Gerald; Herrmann, Hartmut; Pinxteren, Dominik van; McFiggans, Gordon; Wiedensohler, Alfred.

In: Atmospheric Environment, Vol. 195, 12.2018, p. 141-148.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Chen, Y, Wild, O, Wang, Y, Ran, L, Teich, M, Größ, J, Wang, L, Spindler, G, Herrmann, H, Pinxteren, DV, McFiggans, G & Wiedensohler, A 2018, 'The influence of impactor size cut-off shift caused by hygroscopic growth on particulate matter loading and composition measurements', Atmospheric Environment, vol. 195, pp. 141-148. https://doi.org/10.1016/j.atmosenv.2018.09.049

APA

Chen, Y., Wild, O., Wang, Y., Ran, L., Teich, M., Größ, J., Wang, L., Spindler, G., Herrmann, H., Pinxteren, D. V., McFiggans, G., & Wiedensohler, A. (2018). The influence of impactor size cut-off shift caused by hygroscopic growth on particulate matter loading and composition measurements. Atmospheric Environment, 195, 141-148. https://doi.org/10.1016/j.atmosenv.2018.09.049

Vancouver

Author

Chen, Ying ; Wild, Oliver ; Wang, Yu ; Ran, Liang ; Teich, Monique ; Größ, Johannes ; Wang, Lina ; Spindler, Gerald ; Herrmann, Hartmut ; Pinxteren, Dominik van ; McFiggans, Gordon ; Wiedensohler, Alfred. / The influence of impactor size cut-off shift caused by hygroscopic growth on particulate matter loading and composition measurements. In: Atmospheric Environment. 2018 ; Vol. 195. pp. 141-148.

Bibtex

@article{d483a368b12e4263b150b68e7b618718,
title = "The influence of impactor size cut-off shift caused by hygroscopic growth on particulate matter loading and composition measurements",
abstract = "The mass loading and composition of atmospheric particles are important in determining their climate and health effects, and are typically measured by filter sampling. However, particle sampling under ambient conditions can lead to a shift in the size cut-off threshold induced by hygroscopic growth, and the influence of this on measurement of particle loading and composition has not been adequately quantified. Here, we propose a method to assess this influence based on κ-K{\"o}hler theory. A global perspective is presented based on previously reported annual climatological values of hygroscopic properties, meteorological parameters and particle volume size distributions. Measurements at background sites in Europe may be more greatly influenced by the cut-off shift than those from other continents, with a median influence of 10–20% on the total mass of sampled particles. However, the influence is generally much smaller (<7%) at urban sites, and is negligible for dust and particles in the Arctic. Sea-salt particles experience the largest influence (median value ∼50%), resulting from their large size, high hygroscopicity and the high relative humidity (RH) in marine air-masses. We estimate a difference of ∼30% in this influence of sea-salt particle sampling between relatively dry (RH = 60%) and humid (RH = 90%) conditions. Given the variation in the cut-off shift in different locations and at different times, a consistent consideration of this influence using the approach we introduce here is critical for observational studies of the long-term and spatial distribution of particle loading and composition, and crucial for robust validation of aerosol modules in modelling studies.",
keywords = "Aerosol measurement, Chemical composition, Filter sampling, Growth factor",
author = "Ying Chen and Oliver Wild and Yu Wang and Liang Ran and Monique Teich and Johannes Gr{\"o}{\ss} and Lina Wang and Gerald Spindler and Hartmut Herrmann and Pinxteren, {Dominik van} and Gordon McFiggans and Alfred Wiedensohler",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Atmospheric Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Atmospheric Environment, 195, 2018 DOI: 10.1016/j.atmosenv.2018.09.049",
year = "2018",
month = dec,
doi = "10.1016/j.atmosenv.2018.09.049",
language = "English",
volume = "195",
pages = "141--148",
journal = "Atmospheric Environment",
issn = "1352-2310",
publisher = "PERGAMON-ELSEVIER SCIENCE LTD",

}

RIS

TY - JOUR

T1 - The influence of impactor size cut-off shift caused by hygroscopic growth on particulate matter loading and composition measurements

AU - Chen, Ying

AU - Wild, Oliver

AU - Wang, Yu

AU - Ran, Liang

AU - Teich, Monique

AU - Größ, Johannes

AU - Wang, Lina

AU - Spindler, Gerald

AU - Herrmann, Hartmut

AU - Pinxteren, Dominik van

AU - McFiggans, Gordon

AU - Wiedensohler, Alfred

N1 - This is the author’s version of a work that was accepted for publication in Atmospheric Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Atmospheric Environment, 195, 2018 DOI: 10.1016/j.atmosenv.2018.09.049

PY - 2018/12

Y1 - 2018/12

N2 - The mass loading and composition of atmospheric particles are important in determining their climate and health effects, and are typically measured by filter sampling. However, particle sampling under ambient conditions can lead to a shift in the size cut-off threshold induced by hygroscopic growth, and the influence of this on measurement of particle loading and composition has not been adequately quantified. Here, we propose a method to assess this influence based on κ-Köhler theory. A global perspective is presented based on previously reported annual climatological values of hygroscopic properties, meteorological parameters and particle volume size distributions. Measurements at background sites in Europe may be more greatly influenced by the cut-off shift than those from other continents, with a median influence of 10–20% on the total mass of sampled particles. However, the influence is generally much smaller (<7%) at urban sites, and is negligible for dust and particles in the Arctic. Sea-salt particles experience the largest influence (median value ∼50%), resulting from their large size, high hygroscopicity and the high relative humidity (RH) in marine air-masses. We estimate a difference of ∼30% in this influence of sea-salt particle sampling between relatively dry (RH = 60%) and humid (RH = 90%) conditions. Given the variation in the cut-off shift in different locations and at different times, a consistent consideration of this influence using the approach we introduce here is critical for observational studies of the long-term and spatial distribution of particle loading and composition, and crucial for robust validation of aerosol modules in modelling studies.

AB - The mass loading and composition of atmospheric particles are important in determining their climate and health effects, and are typically measured by filter sampling. However, particle sampling under ambient conditions can lead to a shift in the size cut-off threshold induced by hygroscopic growth, and the influence of this on measurement of particle loading and composition has not been adequately quantified. Here, we propose a method to assess this influence based on κ-Köhler theory. A global perspective is presented based on previously reported annual climatological values of hygroscopic properties, meteorological parameters and particle volume size distributions. Measurements at background sites in Europe may be more greatly influenced by the cut-off shift than those from other continents, with a median influence of 10–20% on the total mass of sampled particles. However, the influence is generally much smaller (<7%) at urban sites, and is negligible for dust and particles in the Arctic. Sea-salt particles experience the largest influence (median value ∼50%), resulting from their large size, high hygroscopicity and the high relative humidity (RH) in marine air-masses. We estimate a difference of ∼30% in this influence of sea-salt particle sampling between relatively dry (RH = 60%) and humid (RH = 90%) conditions. Given the variation in the cut-off shift in different locations and at different times, a consistent consideration of this influence using the approach we introduce here is critical for observational studies of the long-term and spatial distribution of particle loading and composition, and crucial for robust validation of aerosol modules in modelling studies.

KW - Aerosol measurement

KW - Chemical composition

KW - Filter sampling

KW - Growth factor

U2 - 10.1016/j.atmosenv.2018.09.049

DO - 10.1016/j.atmosenv.2018.09.049

M3 - Journal article

VL - 195

SP - 141

EP - 148

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

ER -