Exposure to inhalable aerosols and their chemical characteristics from different potential factors in urban office environments

Hyeon Ju Oh; Na Na Jeong; Jong Ryeul Sohn; Jae Seung Roh; Jongbok Kim

doi:10.1007/s11356-019-05375-9

Exposure to inhalable aerosols and their chemical characteristics from different potential factors in urban office environments

Hyeon Ju Oh, Na Na Jeong, Jong Ryeul Sohn, Jae Seung Roh, Jongbok Kim

Department of Public Health Sciences

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Indoor air quality (IAQ) is one of important issues in indoor environment due to exposure to inhalable aerosol which is affected by indoor and outdoor factors. To demonstrate the effect of indoor and outdoor to the IAQ, this study presents three fractions of particulate matter (PM) (PM_2.5, PM₄, PM₁₀), characterization of I/O ratios for PM under potential indoor (average occupancy) and outdoor factors (Asian dust, rain, wind, and snow days) and evaluation of chemical components in aerosols. In the chemical characteristics of PM, organic carbon (OC), elemental carbon (EC), and trace elements were analyzed in indoors and outdoors. There was no significant difference of respirable aerosol (PM_2.5 and PM₄) concentration in different indoor environments. The concentration of OC in PM₁₀ was lower in indoor than outdoor in summer and winter seasons, while the concentration of OC in PM_2.5 was higher in indoor than outdoor. Also, the OC/EC ratios in PM_2.5 were higher than those in PM₁₀. Further, the ratios of trace elements in PM_2.5 and PM₁₀ were different at various locations within the building. This study demonstrated that the exposure to PM_2.5 is greatly affected by outdoor environment. Although there was no difference in inhalable and respirable aerosol concentration at different locations within the building, the impact of outdoor factors is strongly supported by OC/EC ratios and PM_2.5/PM₁₀ ratios of trace elements. This study shows that chemical components through the HVAC system affected the exposure to the indoor respirable aerosol, which could lead to adverse effect on the indoor air quality.

Original language	English
Pages (from-to)	21750-21759
Number of pages	10
Journal	Environmental Science and Pollution Research
Volume	26
Issue number	21
DOIs	https://doi.org/10.1007/s11356-019-05375-9
Publication status	Published - 2019 Jul 1

Bibliographical note

Funding Information:
This work was funded by the Korean Government through the National Research Foundation of Korea Grant (NRF-2018R1A6A1A03025761, NRF-2018R1A6A3A11048705).

Publisher Copyright:
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

Keywords

Carbonaceous aerosol
Exposure to indoor PM
HVAC system
Inhalable aerosol
Respirable aerosol
Trace element

ASJC Scopus subject areas

Environmental Chemistry
Pollution
Health, Toxicology and Mutagenesis

Access to Document

10.1007/s11356-019-05375-9

Cite this

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title = "Exposure to inhalable aerosols and their chemical characteristics from different potential factors in urban office environments",

abstract = "Indoor air quality (IAQ) is one of important issues in indoor environment due to exposure to inhalable aerosol which is affected by indoor and outdoor factors. To demonstrate the effect of indoor and outdoor to the IAQ, this study presents three fractions of particulate matter (PM) (PM2.5, PM4, PM10), characterization of I/O ratios for PM under potential indoor (average occupancy) and outdoor factors (Asian dust, rain, wind, and snow days) and evaluation of chemical components in aerosols. In the chemical characteristics of PM, organic carbon (OC), elemental carbon (EC), and trace elements were analyzed in indoors and outdoors. There was no significant difference of respirable aerosol (PM2.5 and PM4) concentration in different indoor environments. The concentration of OC in PM10 was lower in indoor than outdoor in summer and winter seasons, while the concentration of OC in PM2.5 was higher in indoor than outdoor. Also, the OC/EC ratios in PM2.5 were higher than those in PM10. Further, the ratios of trace elements in PM2.5 and PM10 were different at various locations within the building. This study demonstrated that the exposure to PM2.5 is greatly affected by outdoor environment. Although there was no difference in inhalable and respirable aerosol concentration at different locations within the building, the impact of outdoor factors is strongly supported by OC/EC ratios and PM2.5/PM10 ratios of trace elements. This study shows that chemical components through the HVAC system affected the exposure to the indoor respirable aerosol, which could lead to adverse effect on the indoor air quality.",

keywords = "Carbonaceous aerosol, Exposure to indoor PM, HVAC system, Inhalable aerosol, Respirable aerosol, Trace element",

author = "Oh, {Hyeon Ju} and Jeong, {Na Na} and Sohn, {Jong Ryeul} and Roh, {Jae Seung} and Jongbok Kim",

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AU - Oh, Hyeon Ju

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AU - Roh, Jae Seung

AU - Kim, Jongbok

N1 - Funding Information: This work was funded by the Korean Government through the National Research Foundation of Korea Grant (NRF-2018R1A6A1A03025761, NRF-2018R1A6A3A11048705). Publisher Copyright: © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

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N2 - Indoor air quality (IAQ) is one of important issues in indoor environment due to exposure to inhalable aerosol which is affected by indoor and outdoor factors. To demonstrate the effect of indoor and outdoor to the IAQ, this study presents three fractions of particulate matter (PM) (PM2.5, PM4, PM10), characterization of I/O ratios for PM under potential indoor (average occupancy) and outdoor factors (Asian dust, rain, wind, and snow days) and evaluation of chemical components in aerosols. In the chemical characteristics of PM, organic carbon (OC), elemental carbon (EC), and trace elements were analyzed in indoors and outdoors. There was no significant difference of respirable aerosol (PM2.5 and PM4) concentration in different indoor environments. The concentration of OC in PM10 was lower in indoor than outdoor in summer and winter seasons, while the concentration of OC in PM2.5 was higher in indoor than outdoor. Also, the OC/EC ratios in PM2.5 were higher than those in PM10. Further, the ratios of trace elements in PM2.5 and PM10 were different at various locations within the building. This study demonstrated that the exposure to PM2.5 is greatly affected by outdoor environment. Although there was no difference in inhalable and respirable aerosol concentration at different locations within the building, the impact of outdoor factors is strongly supported by OC/EC ratios and PM2.5/PM10 ratios of trace elements. This study shows that chemical components through the HVAC system affected the exposure to the indoor respirable aerosol, which could lead to adverse effect on the indoor air quality.

AB - Indoor air quality (IAQ) is one of important issues in indoor environment due to exposure to inhalable aerosol which is affected by indoor and outdoor factors. To demonstrate the effect of indoor and outdoor to the IAQ, this study presents three fractions of particulate matter (PM) (PM2.5, PM4, PM10), characterization of I/O ratios for PM under potential indoor (average occupancy) and outdoor factors (Asian dust, rain, wind, and snow days) and evaluation of chemical components in aerosols. In the chemical characteristics of PM, organic carbon (OC), elemental carbon (EC), and trace elements were analyzed in indoors and outdoors. There was no significant difference of respirable aerosol (PM2.5 and PM4) concentration in different indoor environments. The concentration of OC in PM10 was lower in indoor than outdoor in summer and winter seasons, while the concentration of OC in PM2.5 was higher in indoor than outdoor. Also, the OC/EC ratios in PM2.5 were higher than those in PM10. Further, the ratios of trace elements in PM2.5 and PM10 were different at various locations within the building. This study demonstrated that the exposure to PM2.5 is greatly affected by outdoor environment. Although there was no difference in inhalable and respirable aerosol concentration at different locations within the building, the impact of outdoor factors is strongly supported by OC/EC ratios and PM2.5/PM10 ratios of trace elements. This study shows that chemical components through the HVAC system affected the exposure to the indoor respirable aerosol, which could lead to adverse effect on the indoor air quality.

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KW - Exposure to indoor PM

KW - HVAC system

KW - Inhalable aerosol

KW - Respirable aerosol

KW - Trace element

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JO - Environmental Science and Pollution Research

JF - Environmental Science and Pollution Research

IS - 21

ER -

Exposure to inhalable aerosols and their chemical characteristics from different potential factors in urban office environments

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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