Indoor air quality of daycare centers in Seoul, Korea

Sung Ho Hwang, Sung Chul Seo, Young Yoo, Ki Yeon Kim, Ji Tae Choung, Wha Me Park

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


We determined the relation between indoor pollutants and certain building and environmental factors. We gathered data on variables such as biological pollutants (mold and bacteria), and chemical pollutants (formaldehyde, CO2, CO, and total volatile organic compounds, also known as TVOCs) from 25 daycare centers. The level of bacteria exceeded the limit of 800 CFU m−3 as mandated by Korea's Indoor Air Quality (IAQ) standard. The level of these bacteria showed a significant positive association with the building age and area, and a negative link with the ventilation time. As determined through a thermal assessment (p = 0.035), the levels of mold were significantly higher in water-damaged facilities than in those without. The levels of the five VOCs (benzene, toluene, ethylbenzene, xylene, and styrene) were observed at the highest indoors at night, compared to indoors and outdoors during the day. Proper ventilation and management of water and/or relative humidity in daycare buildings can help reduce the exposure to certain biological and chemical pollutants. The findings are useful to ensure the well-being of children in daycare centers.

Original languageEnglish
Pages (from-to)186-193
Number of pages8
JournalBuilding and Environment
Publication statusPublished - 2017 Nov 1
Externally publishedYes


  • Building characteristics
  • Daycare centers
  • Indoor air quality
  • Management
  • Ventilation
  • Water damage

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction


Dive into the research topics of 'Indoor air quality of daycare centers in Seoul, Korea'. Together they form a unique fingerprint.

Cite this