Spatial concentration of carbon components in indoor pm2.5 of school classrooms in a large city of Korea

Sujeong Heo; Jiyou Kwoun; Sumin Lee; Doyoon Kim; Taejung Lee; Youngmin Jo

doi:10.3390/app11167328

Spatial concentration of carbon components in indoor pm_2.5 of school classrooms in a large city of Korea

Sujeong Heo
, Jiyou Kwoun
, Sumin Lee
, Doyoon Kim
, Taejung Lee
, Youngmin Jo

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

2 Citations (Scopus)

Abstract

On increasing the importance of indoor air quality in urban schools of Korea, a comprehensive investigation of PM_2.5 was carried out focusing on carbon contents. According to the analysis results, PM_2.5 of the classrooms distributed 14.5 µg/m³ to 40.2 µg/m³, which was lower than National Guidelines (35 µg/m³ for 24 h average), and it contained 45.4 ± 10.9% of carbonaceous matters including organic carbon (OC) and elemental carbon (EC). Carbons were proportionally correlated with externally occurring ion species, but OC was found more inside (9.5 µg/m³ ) than outside (5.9 µg/m³ ). This indicates that school children are exposed to a variety of polymeric chemicals in the classroom. The current data obtained in this study can be used to inform the establishment of a national school air quality management policy.

Original language	English
Article number	7328
Journal	Applied Sciences (Switzerland)
Volume	11
Issue number	16
DOIs	https://doi.org/10.3390/app11167328
Publication status	Published - 2 Aug 2021

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 11 Sustainable Cities and Communities

Keywords

Carbonaceous matters
Chemical species
Indoor particulate matters
PM
School air quality

Access to Document

10.3390/app11167328

Cite this

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abstract = "On increasing the importance of indoor air quality in urban schools of Korea, a comprehensive investigation of PM2.5 was carried out focusing on carbon contents. According to the analysis results, PM2.5 of the classrooms distributed 14.5 µg/m3 to 40.2 µg/m3, which was lower than National Guidelines (35 µg/m3 for 24 h average), and it contained 45.4 ± 10.9\% of carbonaceous matters including organic carbon (OC) and elemental carbon (EC). Carbons were proportionally correlated with externally occurring ion species, but OC was found more inside (9.5 µg/m3 ) than outside (5.9 µg/m3 ). This indicates that school children are exposed to a variety of polymeric chemicals in the classroom. The current data obtained in this study can be used to inform the establishment of a national school air quality management policy.",

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T1 - Spatial concentration of carbon components in indoor pm2.5 of school classrooms in a large city of Korea

AU - Heo, Sujeong

AU - Kwoun, Jiyou

AU - Lee, Sumin

AU - Kim, Doyoon

AU - Lee, Taejung

AU - Jo, Youngmin

PY - 2021/8/2

Y1 - 2021/8/2

N2 - On increasing the importance of indoor air quality in urban schools of Korea, a comprehensive investigation of PM2.5 was carried out focusing on carbon contents. According to the analysis results, PM2.5 of the classrooms distributed 14.5 µg/m3 to 40.2 µg/m3, which was lower than National Guidelines (35 µg/m3 for 24 h average), and it contained 45.4 ± 10.9% of carbonaceous matters including organic carbon (OC) and elemental carbon (EC). Carbons were proportionally correlated with externally occurring ion species, but OC was found more inside (9.5 µg/m3 ) than outside (5.9 µg/m3 ). This indicates that school children are exposed to a variety of polymeric chemicals in the classroom. The current data obtained in this study can be used to inform the establishment of a national school air quality management policy.

AB - On increasing the importance of indoor air quality in urban schools of Korea, a comprehensive investigation of PM2.5 was carried out focusing on carbon contents. According to the analysis results, PM2.5 of the classrooms distributed 14.5 µg/m3 to 40.2 µg/m3, which was lower than National Guidelines (35 µg/m3 for 24 h average), and it contained 45.4 ± 10.9% of carbonaceous matters including organic carbon (OC) and elemental carbon (EC). Carbons were proportionally correlated with externally occurring ion species, but OC was found more inside (9.5 µg/m3 ) than outside (5.9 µg/m3 ). This indicates that school children are exposed to a variety of polymeric chemicals in the classroom. The current data obtained in this study can be used to inform the establishment of a national school air quality management policy.

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KW - Chemical species

KW - Indoor particulate matters

KW - PM

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