A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Indoor air quality of daycare centers in Seoul, Korea
AbstractWe 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.
HighlightsWe conducted the study in daycare centers located throughout Seoul's 25 regions.Levels of mold were significantly higher in facilities with water damage than facilities without it.An average of five VOCs showed the highest concentration for indoors at night.There is a need to minimize indoor air pollutants through systematic assessment.Management by using our findings for ventilation, building age and area, and water damage is important.
Indoor air quality of daycare centers in Seoul, Korea
AbstractWe 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.
HighlightsWe conducted the study in daycare centers located throughout Seoul's 25 regions.Levels of mold were significantly higher in facilities with water damage than facilities without it.An average of five VOCs showed the highest concentration for indoors at night.There is a need to minimize indoor air pollutants through systematic assessment.Management by using our findings for ventilation, building age and area, and water damage is important.
Indoor air quality of daycare centers in Seoul, Korea
Hwang, Sung Ho (author) / Seo, SungChul (author) / Yoo, Young (author) / Kim, Ki Yeon (author) / Choung, Ji Tae (author) / Park, Wha Me (author)
Building and Environment ; 124 ; 186-193
2017-07-29
8 pages
Article (Journal)
Electronic Resource
English
Indoor air quality of daycare centers in Seoul, Korea
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