포름알데히드, 휘발성 유기화합물에 대한 능동포집기 및 확산포집기 비교 연구

A Comperative study of Active and passive sampler for Formaldehyde and Volatile Organic Compounds(VOCs)

&nbsp;&nbsp;This study was investigated for efficiency of sampling to active and passive sampling of formaldehyde and volatile organic compounds. Passive sampling method was more simple than active sampling method. The difference of passive and active sampling was not significant for form aldehyde. But the passive sampling method of VOCs in indoor air was difficult that passive sampling rate was very low. Thermal desorption method for VOCs was more efficiency than passive sampling. Because thermal desorption method had low limit of detection(LOD) for VOCs, sampling time did not need long time.<BR>&nbsp;&nbsp;Formaldehyde concentrations in some shopping mall were over 0.1 ppm (standard concentration in indoor air). It need more to investigate formaldehyde concentration in shopping mall in the future.