| Autor: |
Sujeong Heo, Jiyou Kwoun, Sumin Lee, Doyoon Kim, Taejung Lee, Youngmin Jo |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Applied Sciences, Vol 11, Iss 16, p 7328 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2076-3417 |
| DOI: |
10.3390/app11167328 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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