Development of a Portable Multi-Detector for Indoor Air Quality Monitoring in Schools: Preliminary Results About Formaldehyde Measurements
Abstract
Indoor air quality (IAQ) in schools is a major public-health concern, as pupils and staff spend extended periods in classrooms where air renewal, occupancy, and material emissions interact. A portable multi-detector was developed to monitor key indoor pollutants, namely carbon dioxide, particulate matter, total volatile organic compounds, and formaldehyde, using compact low-cost sensors integrated into an embedded acquisition system. The paper focuses on the description of the multi-detector and presents measurements obtained during a six-week campaign conducted in fourteen classrooms across five elementary schools under real operating conditions, with particular attention to formaldehyde data. Results show significant spatial and temporal variability of formaldehyde concentrations between classrooms, with median values ranging from 2 to 28 ppb. All measured concentrations remain below the WHO and ANSES short-term guideline (80 ppb), while only five classrooms exhibit median values below the French long-term guideline of 8 ppb. These findings highlight the relevance of multi-parameter monitoring for assessing exposure to indoor pollutants in school environments.
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BibTeX
@article{jebeniani2026development,
title = {{Development of a Portable Multi-Detector for Indoor Air Quality Monitoring in Schools: Preliminary Results About Formaldehyde Measurements}},
author = {Hamza Jebeniani and André Canosa and Amina Meslem and Gisèle El Dib},
journal = {Chemical Engineering Transactions},
year = {2026},
month = oct,
doi = {10.3303/cet26127011},
url = {https://hal.science/hal-05794364v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Development of a Portable Multi-Detector for Indoor Air Quality Monitoring in Schools: Preliminary Results About Formaldehyde Measurements
AU - Hamza Jebeniani
AU - André Canosa
AU - Amina Meslem
AU - Gisèle El Dib
PY - 2026
DA - 2026/10/12
JO - Chemical Engineering Transactions
DO - 10.3303/cet26127011
UR - https://hal.science/hal-05794364v1
AB - Indoor air quality (IAQ) in schools is a major public-health concern, as pupils and staff spend extended periods in classrooms where air renewal, occupancy, and material emissions interact. A portable multi-detector was developed to monitor key indoor pollutants, namely carbon dioxide, particulate matter, total volatile organic compounds, and formaldehyde, using compact low-cost sensors integrated into an embedded acquisition system. The paper focuses on the description of the multi-detector and presents measurements obtained during a six-week campaign conducted in fourteen classrooms across five elementary schools under real operating conditions, with particular attention to formaldehyde data. Results show significant spatial and temporal variability of formaldehyde concentrations between classrooms, with median values ranging from 2 to 28 ppb. All measured concentrations remain below the WHO and ANSES short-term guideline (80 ppb), while only five classrooms exhibit median values below the French long-term guideline of 8 ppb. These findings highlight the relevance of multi-parameter monitoring for assessing exposure to indoor pollutants in school environments.
SN - 1974-9791
SN - 2283-9216
ER -