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Emission measurements with gravimetric impactors and electrical devices: An aerosol instrument comparison

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Emission measurements with gravimetric impactors and electrical devices : An aerosol instrument comparison. / Salo, Laura; Mylläri, Fanni; Maasikmets, Marek; Niemelä, Ville; Konist, Alar; Vainumäe, Keio; Kupri, Hanna Lii; Titova, Riina; Simonen, Pauli; Aurela, Minna; Bloss, Matthew; Keskinen, Jorma; Timonen, Hilkka; Rönkkö, Topi.

In: Aerosol Science and Technology, Vol. 53, No. 5, 01.03.2019, p. 526-539.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Salo, L, Mylläri, F, Maasikmets, M, Niemelä, V, Konist, A, Vainumäe, K, Kupri, HL, Titova, R, Simonen, P, Aurela, M, Bloss, M, Keskinen, J, Timonen, H & Rönkkö, T 2019, 'Emission measurements with gravimetric impactors and electrical devices: An aerosol instrument comparison' Aerosol Science and Technology, vol. 53, no. 5, pp. 526-539. https://doi.org/10.1080/02786826.2019.1578858

APA

Vancouver

Salo L, Mylläri F, Maasikmets M, Niemelä V, Konist A, Vainumäe K et al. Emission measurements with gravimetric impactors and electrical devices: An aerosol instrument comparison. Aerosol Science and Technology. 2019 Mar 1;53(5):526-539. https://doi.org/10.1080/02786826.2019.1578858

Author

Salo, Laura ; Mylläri, Fanni ; Maasikmets, Marek ; Niemelä, Ville ; Konist, Alar ; Vainumäe, Keio ; Kupri, Hanna Lii ; Titova, Riina ; Simonen, Pauli ; Aurela, Minna ; Bloss, Matthew ; Keskinen, Jorma ; Timonen, Hilkka ; Rönkkö, Topi. / Emission measurements with gravimetric impactors and electrical devices : An aerosol instrument comparison. In: Aerosol Science and Technology. 2019 ; Vol. 53, No. 5. pp. 526-539.

Bibtex - Download

@article{c45d921322514e6cb3fca2945e82427b,
title = "Emission measurements with gravimetric impactors and electrical devices: An aerosol instrument comparison",
abstract = "Particulate matter in the atmosphere is known to affect Earth’s climate and to be harmful to human health. Accurately measuring particles from emission sources is important, as the results are used to inform policies and climate models. This study compares the results of two ELPI + devices, two PM10 cascade impactors and an eFilter, in combustion emission measurements. The comparison of the instruments in a realistic setting shows what types of challenges arise from measuring an emission aerosol with unknown particle morphologies and densities, different particle concentrations and high temperature. Our results show that the PM10 cascade impactors have very good intercorrelation when the collected mass is greater than 150 µg, but below that, the uncertainty of the results increases with decreasing mass. The raw signals of two ELPI + devices were nearly identical in most samples, as well as the particle number concentrations and size distributions calculated from raw signals; however, transforming the current distributions into mass distributions showed variation in the mass concentration of particles larger than 1 µm. The real-time time signal measured by eFilter was similar to the total current measured by ELPI+. The eFilter and PM10 cascade impactors showed similar particle mass concentrations, whereas ELPI + showed clearly higher ones in most cases. We concluded that the difference is at least partially due to volatile components being measured by ELPI+, but not by the mass collection measurements.",
author = "Laura Salo and Fanni Myll{\"a}ri and Marek Maasikmets and Ville Niemel{\"a} and Alar Konist and Keio Vainum{\"a}e and Kupri, {Hanna Lii} and Riina Titova and Pauli Simonen and Minna Aurela and Matthew Bloss and Jorma Keskinen and Hilkka Timonen and Topi R{\"o}nkk{\"o}",
year = "2019",
month = "3",
day = "1",
doi = "10.1080/02786826.2019.1578858",
language = "English",
volume = "53",
pages = "526--539",
journal = "Aerosol Science and Technology",
issn = "0278-6826",
publisher = "Taylor & Francis",
number = "5",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Emission measurements with gravimetric impactors and electrical devices

T2 - An aerosol instrument comparison

AU - Salo, Laura

AU - Mylläri, Fanni

AU - Maasikmets, Marek

AU - Niemelä, Ville

AU - Konist, Alar

AU - Vainumäe, Keio

AU - Kupri, Hanna Lii

AU - Titova, Riina

AU - Simonen, Pauli

AU - Aurela, Minna

AU - Bloss, Matthew

AU - Keskinen, Jorma

AU - Timonen, Hilkka

AU - Rönkkö, Topi

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Particulate matter in the atmosphere is known to affect Earth’s climate and to be harmful to human health. Accurately measuring particles from emission sources is important, as the results are used to inform policies and climate models. This study compares the results of two ELPI + devices, two PM10 cascade impactors and an eFilter, in combustion emission measurements. The comparison of the instruments in a realistic setting shows what types of challenges arise from measuring an emission aerosol with unknown particle morphologies and densities, different particle concentrations and high temperature. Our results show that the PM10 cascade impactors have very good intercorrelation when the collected mass is greater than 150 µg, but below that, the uncertainty of the results increases with decreasing mass. The raw signals of two ELPI + devices were nearly identical in most samples, as well as the particle number concentrations and size distributions calculated from raw signals; however, transforming the current distributions into mass distributions showed variation in the mass concentration of particles larger than 1 µm. The real-time time signal measured by eFilter was similar to the total current measured by ELPI+. The eFilter and PM10 cascade impactors showed similar particle mass concentrations, whereas ELPI + showed clearly higher ones in most cases. We concluded that the difference is at least partially due to volatile components being measured by ELPI+, but not by the mass collection measurements.

AB - Particulate matter in the atmosphere is known to affect Earth’s climate and to be harmful to human health. Accurately measuring particles from emission sources is important, as the results are used to inform policies and climate models. This study compares the results of two ELPI + devices, two PM10 cascade impactors and an eFilter, in combustion emission measurements. The comparison of the instruments in a realistic setting shows what types of challenges arise from measuring an emission aerosol with unknown particle morphologies and densities, different particle concentrations and high temperature. Our results show that the PM10 cascade impactors have very good intercorrelation when the collected mass is greater than 150 µg, but below that, the uncertainty of the results increases with decreasing mass. The raw signals of two ELPI + devices were nearly identical in most samples, as well as the particle number concentrations and size distributions calculated from raw signals; however, transforming the current distributions into mass distributions showed variation in the mass concentration of particles larger than 1 µm. The real-time time signal measured by eFilter was similar to the total current measured by ELPI+. The eFilter and PM10 cascade impactors showed similar particle mass concentrations, whereas ELPI + showed clearly higher ones in most cases. We concluded that the difference is at least partially due to volatile components being measured by ELPI+, but not by the mass collection measurements.

UR - http://www.scopus.com/inward/record.url?scp=85062494308&partnerID=8YFLogxK

U2 - 10.1080/02786826.2019.1578858

DO - 10.1080/02786826.2019.1578858

M3 - Article

VL - 53

SP - 526

EP - 539

JO - Aerosol Science and Technology

JF - Aerosol Science and Technology

SN - 0278-6826

IS - 5

ER -