Measured and perceived IEQ under different ventilation strategies in Swedish classrooms

Blanka Cabovská; Natalia Giraldo Vasquez; Despoina Teli; Jan-Olof Dalenbäck; Gabriel Bekö; Pawel Wargocki; Lars Ekberg; Sarka Langer

Measured and perceived IEQ under different ventilation strategies in Swedish classrooms

Blanka Cabovská, Natalia Giraldo Vasquez, Despoina Teli, Jan-Olof Dalenbäck, Gabriel Bekö, Pawel Wargocki, Lars Ekberg, Sarka Langer^*

^*Corresponding author for this work

Chalmers University of Technology

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

Abstract

Indoor environmental quality was assessed in Swedish primary school classrooms grouped into three categories based on the ventilation system: 1) natural or exhaust ventilation, 2) balanced mechanical ventilation systems with constant air volume (CAV), 3) balanced mechanical ventilation systems with variable air volume (VAV). Measurements of NO₂, ozone, TVOC, formaldehyde, PM₁₀, and PM_2.5 and a questionnaire survey were conducted. The concentrations of pollutants were integrated into an Indoor Air Pollution Index allowing a rank comparison of classrooms. Children’s perception scores were calculated based on the questionnaire responses. Naturally ventilated classrooms had higher level of air pollution. No significant differences in pollutant levels were observed between classrooms with CAV and VAV systems. The type of ventilation system affected the subjective assessment of indoor air quality; it was worst in naturally ventilated classrooms.

Original language	English
Title of host publication	Proceedings of Indoor Air 2022
Number of pages	2
Publisher	International Society of Indoor Air Quality and Climate
Publication date	2022
Article number	1193
Publication status	Published - 2022
Event	17^th International Conference of the International Society of Indoor Air Quality & Climate - University of Eastern Finland, Kuopio, Finland Duration: 12 Jun 2022 → 16 Jun 2022 Conference number: 17 https://indoorair2022.org/

Conference

Conference	17^th International Conference of the International Society of Indoor Air Quality & Climate
Number	17
Location	University of Eastern Finland
Country/Territory	Finland
City	Kuopio
Period	12/06/2022 → 16/06/2022
Internet address	https://indoorair2022.org/

Keywords

Indoor air pollutants
Questionnaire
Indoor air pollution index
Perception score

OpenUrl availability

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Cite this

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title = "Measured and perceived IEQ under different ventilation strategies in Swedish classrooms",

abstract = "Indoor environmental quality was assessed in Swedish primary school classrooms grouped into three categories based on the ventilation system: 1) natural or exhaust ventilation, 2) balanced mechanical ventilation systems with constant air volume (CAV), 3) balanced mechanical ventilation systems with variable air volume (VAV). Measurements of NO2, ozone, TVOC, formaldehyde, PM10, and PM2.5 and a questionnaire survey were conducted. The concentrations of pollutants were integrated into an Indoor Air Pollution Index allowing a rank comparison of classrooms. Children{\textquoteright}s perception scores were calculated based on the questionnaire responses. Naturally ventilated classrooms had higher level of air pollution. No significant differences in pollutant levels were observed between classrooms with CAV and VAV systems. The type of ventilation system affected the subjective assessment of indoor air quality; it was worst in naturally ventilated classrooms.",

keywords = "Indoor air pollutants, Questionnaire, Indoor air pollution index, Perception score",

author = "Blanka Cabovsk{\'a} and {Giraldo Vasquez}, Natalia and Despoina Teli and Jan-Olof Dalenb{\"a}ck and Gabriel Bek{\"o} and Pawel Wargocki and Lars Ekberg and Sarka Langer",

year = "2022",

language = "English",

booktitle = "Proceedings of Indoor Air 2022",

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

note = "17<sup>th</sup> International Conference of the International Society of Indoor Air Quality & Climate, Indoor Air 2022 ; Conference date: 12-06-2022 Through 16-06-2022",

url = "https://indoorair2022.org/",

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Cabovská, B, Giraldo Vasquez, N, Teli, D, Dalenbäck, J-O, Bekö, G , Wargocki, P, Ekberg, L & Langer, S 2022, Measured and perceived IEQ under different ventilation strategies in Swedish classrooms. in Proceedings of Indoor Air 2022., 1193, International Society of Indoor Air Quality and Climate, 17^th International Conference of the International Society of Indoor Air Quality & Climate, Kuopio, Finland, 12/06/2022.

Measured and perceived IEQ under different ventilation strategies in Swedish classrooms. / Cabovská, Blanka; Giraldo Vasquez, Natalia; Teli, Despoina et al.
Proceedings of Indoor Air 2022. International Society of Indoor Air Quality and Climate, 2022. 1193.

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

TY - GEN

T1 - Measured and perceived IEQ under different ventilation strategies in Swedish classrooms

AU - Cabovská, Blanka

AU - Giraldo Vasquez, Natalia

AU - Teli, Despoina

AU - Dalenbäck, Jan-Olof

AU - Bekö, Gabriel

AU - Wargocki, Pawel

AU - Ekberg, Lars

AU - Langer, Sarka

N1 - Conference code: 17

PY - 2022

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N2 - Indoor environmental quality was assessed in Swedish primary school classrooms grouped into three categories based on the ventilation system: 1) natural or exhaust ventilation, 2) balanced mechanical ventilation systems with constant air volume (CAV), 3) balanced mechanical ventilation systems with variable air volume (VAV). Measurements of NO2, ozone, TVOC, formaldehyde, PM10, and PM2.5 and a questionnaire survey were conducted. The concentrations of pollutants were integrated into an Indoor Air Pollution Index allowing a rank comparison of classrooms. Children’s perception scores were calculated based on the questionnaire responses. Naturally ventilated classrooms had higher level of air pollution. No significant differences in pollutant levels were observed between classrooms with CAV and VAV systems. The type of ventilation system affected the subjective assessment of indoor air quality; it was worst in naturally ventilated classrooms.

AB - Indoor environmental quality was assessed in Swedish primary school classrooms grouped into three categories based on the ventilation system: 1) natural or exhaust ventilation, 2) balanced mechanical ventilation systems with constant air volume (CAV), 3) balanced mechanical ventilation systems with variable air volume (VAV). Measurements of NO2, ozone, TVOC, formaldehyde, PM10, and PM2.5 and a questionnaire survey were conducted. The concentrations of pollutants were integrated into an Indoor Air Pollution Index allowing a rank comparison of classrooms. Children’s perception scores were calculated based on the questionnaire responses. Naturally ventilated classrooms had higher level of air pollution. No significant differences in pollutant levels were observed between classrooms with CAV and VAV systems. The type of ventilation system affected the subjective assessment of indoor air quality; it was worst in naturally ventilated classrooms.

KW - Indoor air pollutants

KW - Questionnaire

KW - Indoor air pollution index

KW - Perception score

M3 - Article in proceedings

BT - Proceedings of Indoor Air 2022

PB - International Society of Indoor Air Quality and Climate

T2 - 17<sup>th</sup> International Conference of the International Society of Indoor Air Quality & Climate

Y2 - 12 June 2022 through 16 June 2022

ER -

Measured and perceived IEQ under different ventilation strategies in Swedish classrooms

Abstract

Conference

Keywords

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