What Can We Learn About Classroom Air from Low-cost Sensors? A study on CO2 and Volatile Organic Compounds in Danish Schools.

TY - GEN

T1 - What Can We Learn About Classroom Air from Low-cost Sensors?

T2 - 18th International Conference of the International Society of Indoor Air Quality & Climate

AU - Sørensen, Sara Bjerre

AU - Kristensen, Kasper Vita

PY - 2024

Y1 - 2024

N2 - In this work, we report on the application of low-cost air quality sensors for assessing CO2 and total volatile organic compound (TVOC) levels and dynamics in classrooms. From 75 Danish classrooms we report on the effect of ventilation type (i.e. natural- or mechanical ventilation) on classroom pollution levels and compare sensor CO2 and TVOC measurements with perceived air quality as reported by classroom teachers. Results show strong temporal trends in the classroom air pollution related to occupancy. Ventilation type is reported as a key factor influencing both CO2- and TVOC levels, but in contrast to CO2 only classroom TVOC levels were found to correlate with perceived air quality.

AB - In this work, we report on the application of low-cost air quality sensors for assessing CO2 and total volatile organic compound (TVOC) levels and dynamics in classrooms. From 75 Danish classrooms we report on the effect of ventilation type (i.e. natural- or mechanical ventilation) on classroom pollution levels and compare sensor CO2 and TVOC measurements with perceived air quality as reported by classroom teachers. Results show strong temporal trends in the classroom air pollution related to occupancy. Ventilation type is reported as a key factor influencing both CO2- and TVOC levels, but in contrast to CO2 only classroom TVOC levels were found to correlate with perceived air quality.

KW - TVOC

KW - Ventilation

KW - Occupancy

KW - Perceived air quality

KW - Citizen science

M3 - Article in proceedings

BT - Proceedings of Indoor Air 2024

PB - International Society of Indoor Air Quality and Climate

Y2 - 7 July 2024 through 11 July 2024

ER -