Spatial and temporal scales of variability for indoor air constituents
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Spatial and temporal scales of variability for indoor air constituents. / Lakey, Pascale S.J.; Won, Youngbo; Shaw, David; Østerstrøm, Freja F.; Mattila, James; Reidy, Emily; Bottorff, Brandon; Rosales, Colleen; Wang, Chen; Ampollini, Laura; Zhou, Shan; Novoselac, Atila; Kahan, Tara F.; DeCarlo, Peter F.; Abbatt, Jonathan P.D.; Stevens, Philip S.; Farmer, Delphine K.; Carslaw, Nicola; Rim, Donghyun; Shiraiwa, Manabu.
I: Communications Chemistry, Bind 4, Nr. 1, 110, 12.2021.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Spatial and temporal scales of variability for indoor air constituents
AU - Lakey, Pascale S.J.
AU - Won, Youngbo
AU - Shaw, David
AU - Østerstrøm, Freja F.
AU - Mattila, James
AU - Reidy, Emily
AU - Bottorff, Brandon
AU - Rosales, Colleen
AU - Wang, Chen
AU - Ampollini, Laura
AU - Zhou, Shan
AU - Novoselac, Atila
AU - Kahan, Tara F.
AU - DeCarlo, Peter F.
AU - Abbatt, Jonathan P.D.
AU - Stevens, Philip S.
AU - Farmer, Delphine K.
AU - Carslaw, Nicola
AU - Rim, Donghyun
AU - Shiraiwa, Manabu
N1 - Publisher Copyright: © 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - Historically air constituents have been assumed to be well mixed in indoor environments, with single point measurements and box modeling representing a room or a house. Here we demonstrate that this fundamental assumption needs to be revisited through advanced model simulations and extensive measurements of bleach cleaning. We show that inorganic chlorinated products, such as hypochlorous acid and chloramines generated via multiphase reactions, exhibit spatial and vertical concentration gradients in a room, with short-lived ⋅OH radicals confined to sunlit zones, close to windows. Spatial and temporal scales of indoor constituents are modulated by rates of chemical reactions, surface interactions and building ventilation, providing critical insights for better assessments of human exposure to hazardous pollutants, as well as the transport of indoor chemicals outdoors.
AB - Historically air constituents have been assumed to be well mixed in indoor environments, with single point measurements and box modeling representing a room or a house. Here we demonstrate that this fundamental assumption needs to be revisited through advanced model simulations and extensive measurements of bleach cleaning. We show that inorganic chlorinated products, such as hypochlorous acid and chloramines generated via multiphase reactions, exhibit spatial and vertical concentration gradients in a room, with short-lived ⋅OH radicals confined to sunlit zones, close to windows. Spatial and temporal scales of indoor constituents are modulated by rates of chemical reactions, surface interactions and building ventilation, providing critical insights for better assessments of human exposure to hazardous pollutants, as well as the transport of indoor chemicals outdoors.
U2 - 10.1038/s42004-021-00548-5
DO - 10.1038/s42004-021-00548-5
M3 - Journal article
AN - SCOPUS:85112729458
VL - 4
JO - Communications Chemistry
JF - Communications Chemistry
SN - 2399-3669
IS - 1
M1 - 110
ER -
ID: 323337676