대학원 연구실의 겨울철 실내환경 실태

The purpose of this study was to grasp the present condition of indoor environment in graduate school laboratory during winter. Method was field survey with measurement on indoor environmental factor and observation on influencing factor. Field surveys were carried out in 4 graduate school laboratories from 2nd to 8th of December 2006. Measuring elements were indoor temperature, relative humidity, PM10, CO₂, equivalent noise level, and illumination. As results, the averages of indoor temperature in each laboratory were 22.2～27.3℃. Most of laboratories were higher than the Maintenance standard(18～20℃) of School Health Law. The means of relative humidity were 22.9～35.6%, all laboratories were lower than the standard(30～80%). The means of PM10 concentration were 0.0～35.5 ㎍/㎥, all laboratories were kept within the standard(100 ㎍/㎥). The means of CO₂ concentration were 756.3～1477.9 ppm. A laboratory was exceeded the standard(1,000ppm) and 3 laboratories were kept within the standard. The means of equivalent noise level were 48.8～54.5 dB(A)<SUB>Leq5min</SUB>, all laboratories were kept within the standard(55 dB(A)<SUB>Leq5min</SUB>). The means of merged illumination by daylighting and artificial lighting were 344～525 lux (11:00 a.m.) and 269～464 lux (3:00 p.m.), all laboratories were available to compare standard(300 lux). The means of illumination by artificial lighting were 236～400 lux (8:00 p.m.), 2 subject laboratories were lower than the standard(300 lux).