Particle number concentrations in office spaces around Europe

Laura Salo; Ville Silvonen; Tuomas Raunima; Michal Vojtisek-Lom; Jakub Ondracek; Jan Topinka; Roel P.F. Schins; Teemu Lepistö; Henna Lintusaari; Sanna Saarikoski; Luis M.F. Barreira; Jussi Hoivala; Lassi Markkula; Ilpo Kulmala; Juha Vinha; Panu Karjalainen; Topi Rönkkö

Particle number concentrations in office spaces around Europe

Laura Salo^*, Ville Silvonen, Tuomas Raunima, Michal Vojtisek-Lom, Jakub Ondracek, Jan Topinka, Roel P.F. Schins, Teemu Lepistö, Henna Lintusaari, Sanna Saarikoski, Luis M.F. Barreira, Jussi Hoivala, Lassi Markkula, Ilpo Kulmala, Juha Vinha, Panu Karjalainen, Topi Rönkkö

^*Corresponding author for this work

BA4902 Clean air solutions

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

In this work, we investigated indoor air particle number concentrations and their size distributions in four office spaces in Europe. We used an Electrical low-pressure impactor (ELPI+) to enable high time-resolution, as well as a wide size range of particles (here 16 nm to 1 µm). In addition to indoor air concentrations, we report the concurrent outdoor concentrations and their relationship to one another. Infiltration factors ranged from 0.22 to 0.6 and the contribution of indoor sources was from 6 % to 51 %. Mechanically ventilated buildings had less infiltration. The number concentrations in two offices were always above the “low” threshold value given by the World Health Organization.

Original language	English
Title of host publication	18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings
Publisher	International Society for Indoor Air Quality and Climate
ISBN (Electronic)	9798331306816
Publication status	Published - 2024
MoE publication type	A4 Article in a conference publication
Event	18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024 - Honolulu, United States Duration: 7 Jul 2024 → 11 Jul 2024

Conference

Conference	18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024
Country/Territory	United States
City	Honolulu
Period	7/07/24 → 11/07/24

Funding

This work is part of Future Spaces project (33250/31/2020) funded by Business Finland and part of the European Union's Horizon 2020 research and innovation programme under grant agreement no. 814978 (TUBE: Transport-derived ultrafines and the brain effects). We also gratefully acknowledge Academy of Finland Flagship funding Atmosphere and Climate Competence Centre, ACCC (grant no. 337552, 337551).

Keywords

ELPI+
fine particulate matter
I/O ratio
infiltration factor
ultrafine particles

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

Salo, L., Silvonen, V., Raunima, T., Vojtisek-Lom, M., Ondracek, J., Topinka, J., Schins, R. P. F., Lepistö, T., Lintusaari, H., Saarikoski, S., Barreira, L. M. F., Hoivala, J., Markkula, L., Kulmala, I., Vinha, J., Karjalainen, P., & Rönkkö, T. (2024). Particle number concentrations in office spaces around Europe. In 18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings International Society for Indoor Air Quality and Climate.

@inproceedings{6bf7ebcfb740468eb346ff0e2ca0d93a,

title = "Particle number concentrations in office spaces around Europe",

abstract = "In this work, we investigated indoor air particle number concentrations and their size distributions in four office spaces in Europe. We used an Electrical low-pressure impactor (ELPI+) to enable high time-resolution, as well as a wide size range of particles (here 16 nm to 1 µm). In addition to indoor air concentrations, we report the concurrent outdoor concentrations and their relationship to one another. Infiltration factors ranged from 0.22 to 0.6 and the contribution of indoor sources was from 6 % to 51 %. Mechanically ventilated buildings had less infiltration. The number concentrations in two offices were always above the “low” threshold value given by the World Health Organization.",

keywords = "ELPI+, fine particulate matter, I/O ratio, infiltration factor, ultrafine particles",

author = "Laura Salo and Ville Silvonen and Tuomas Raunima and Michal Vojtisek-Lom and Jakub Ondracek and Jan Topinka and Schins, {Roel P.F.} and Teemu Lepist{\"o} and Henna Lintusaari and Sanna Saarikoski and Barreira, {Luis M.F.} and Jussi Hoivala and Lassi Markkula and Ilpo Kulmala and Juha Vinha and Panu Karjalainen and Topi R{\"o}nkk{\"o}",

year = "2024",

language = "English",

booktitle = "18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings",

publisher = "International Society for Indoor Air Quality and Climate",

address = "United States",

note = "18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024 ; Conference date: 07-07-2024 Through 11-07-2024",

}

Salo, L, Silvonen, V, Raunima, T, Vojtisek-Lom, M, Ondracek, J, Topinka, J, Schins, RPF, Lepistö, T, Lintusaari, H, Saarikoski, S, Barreira, LMF, Hoivala, J, Markkula, L, Kulmala, I, Vinha, J, Karjalainen, P & Rönkkö, T 2024, Particle number concentrations in office spaces around Europe. in 18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings. International Society for Indoor Air Quality and Climate, 18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024, Honolulu, United States, 7/07/24.

Particle number concentrations in office spaces around Europe. / Salo, Laura; Silvonen, Ville; Raunima, Tuomas et al.
18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings. International Society for Indoor Air Quality and Climate, 2024.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Particle number concentrations in office spaces around Europe

AU - Salo, Laura

AU - Silvonen, Ville

AU - Raunima, Tuomas

AU - Vojtisek-Lom, Michal

AU - Ondracek, Jakub

AU - Topinka, Jan

AU - Schins, Roel P.F.

AU - Lepistö, Teemu

AU - Lintusaari, Henna

AU - Saarikoski, Sanna

AU - Barreira, Luis M.F.

AU - Hoivala, Jussi

AU - Markkula, Lassi

AU - Kulmala, Ilpo

AU - Vinha, Juha

AU - Karjalainen, Panu

AU - Rönkkö, Topi

PY - 2024

Y1 - 2024

N2 - In this work, we investigated indoor air particle number concentrations and their size distributions in four office spaces in Europe. We used an Electrical low-pressure impactor (ELPI+) to enable high time-resolution, as well as a wide size range of particles (here 16 nm to 1 µm). In addition to indoor air concentrations, we report the concurrent outdoor concentrations and their relationship to one another. Infiltration factors ranged from 0.22 to 0.6 and the contribution of indoor sources was from 6 % to 51 %. Mechanically ventilated buildings had less infiltration. The number concentrations in two offices were always above the “low” threshold value given by the World Health Organization.

AB - In this work, we investigated indoor air particle number concentrations and their size distributions in four office spaces in Europe. We used an Electrical low-pressure impactor (ELPI+) to enable high time-resolution, as well as a wide size range of particles (here 16 nm to 1 µm). In addition to indoor air concentrations, we report the concurrent outdoor concentrations and their relationship to one another. Infiltration factors ranged from 0.22 to 0.6 and the contribution of indoor sources was from 6 % to 51 %. Mechanically ventilated buildings had less infiltration. The number concentrations in two offices were always above the “low” threshold value given by the World Health Organization.

KW - ELPI+

KW - fine particulate matter

KW - I/O ratio

KW - infiltration factor

KW - ultrafine particles

UR - http://www.scopus.com/inward/record.url?scp=85210843100&partnerID=8YFLogxK

M3 - Conference article in proceedings

AN - SCOPUS:85210843100

BT - 18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings

PB - International Society for Indoor Air Quality and Climate

T2 - 18th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2024

Y2 - 7 July 2024 through 11 July 2024

ER -

Particle number concentrations in office spaces around Europe

Abstract

Conference

Funding

Keywords

UN SDGs

Other files and links

Fingerprint

TUBE: Transport derived Ultrafines and the Brain Effects

Cite this

Particle number concentrations in office spaces around Europe

Abstract

Conference

Funding

Keywords

UN SDGs

Other files and links

Fingerprint

Projects

TUBE: Transport derived Ultrafines and the Brain Effects

Cite this