Characterization and source identification of fine dust in Seoul elementary school classrooms.

To evaluate the level of fine particulate matters in elementary schools located in a high traffic area of Seoul and verify the emission source, a field study on the classrooms was conducted under the uncontrolled condition. The indoor PM was lower than that of the outdoors as indicated by an I/O ratio of 0.52-0.

Decomposition of VOCs using serial surface dielectric barrier discharge reactors.

Decomposition of two typical volatile organic compounds (VOCs): toluene and methyl ethyl ketone (MEK), was investigated by introducing the complete energy yield (i.e. amount of VOCs totally converted to CO and CO for every 1 kWh of electrical usage) and specific energy density (SED) for the non-thermal plasma technology.

Effects of air cleaners and school characteristics on classroom concentrations of particulate matter in 34 elementary schools in Korea.

Exposure to particulate matter (PM) in school environments has been associated with respiratory illnesses among children. Although using air cleaners was reported to reduce PM exposure and improve residents' health in homes, their effects in classrooms are not well understood. We examined how the use of air cleaners in classrooms and school/classroom characteristics affect the levels of indoor PM.