TY - GEN
T1 - Influence of Human Activities and Occupancy on the Emission of Indoor Particles from Respiratory and Non-respiratory Sources
AU - Subramanian, P. S.Ganesh
AU - Puthussery, Joseph V.
AU - Mao, Yuqing
AU - Salana, Sudheer
AU - Nguyen, Thanh H.
AU - Newell, Ty
AU - Verma, Vishal
N1 - Publisher Copyright:
© 2024 18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings. All rights reserved.
PY - 2024
Y1 - 2024
N2 - In this study, we examined the relationship between human activities and emission characteristics of CO2 and particles in a clean-environmental chamber, a café and a music club. We measured the CO2 and particle emission rates (CER and PER) across various human activities, in both masked (N-95) and unmasked scenarios, as well as scenarios involving normal and cleanroom clothing (CRC) in the chamber to estimate the contribution of respiratory and non-respiratory emissions from humans. Masking led to a reduction (~10%) in CER across all activities, but only reduced the PER during exercise (~11%). However, wearing CRC substantially reduced the PER by over 55% for all activities, demonstrating that non-respiratory emissions constitute a more dominant fraction of the total emissions during human activities as compared to respiratory emissions. Both CO2 and PNC were driven by human occupancy in both the café and the club.
AB - In this study, we examined the relationship between human activities and emission characteristics of CO2 and particles in a clean-environmental chamber, a café and a music club. We measured the CO2 and particle emission rates (CER and PER) across various human activities, in both masked (N-95) and unmasked scenarios, as well as scenarios involving normal and cleanroom clothing (CRC) in the chamber to estimate the contribution of respiratory and non-respiratory emissions from humans. Masking led to a reduction (~10%) in CER across all activities, but only reduced the PER during exercise (~11%). However, wearing CRC substantially reduced the PER by over 55% for all activities, demonstrating that non-respiratory emissions constitute a more dominant fraction of the total emissions during human activities as compared to respiratory emissions. Both CO2 and PNC were driven by human occupancy in both the café and the club.
KW - CO2 emission rates
KW - Indoor particles
KW - Particle emission rates
KW - human-generated particles
UR - http://www.scopus.com/inward/record.url?scp=85210895077&partnerID=8YFLogxK
U2 - 10.1021/acsestair.3c00088
DO - 10.1021/acsestair.3c00088
M3 - Conference contribution
AN - SCOPUS:85210895077
T3 - 18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings
BT - 18th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2024 - Conference Program and Proceedings
PB - International Society of 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 -