A Study on the Heavy Metal in the Finishing Materials of Childcare Rooms using XRF

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Research article

Journal of the Korean Society for Environmental Analysis 2017;20(1):41-48.

XRF를 이용한 어린이집 보육실내 마감재 중금속 노출연구

박정옥¹, 최성우¹, 김수빈¹, 김도훈¹, 조정구²

¹부산광역시 보건환경연구원
²부산광역시보건환경연구원

Abstract

In this study, hazardous heavy metals used in 1,081 samples from childcare rooms were investigated with X-ray fluorescence (XRF) and inductively coupled plasma (ICP) analyses. Pb > Ba > Zn > Cr > Sb of heavy metals from paints and vinyl sheets were detected in order of descending concentration. A comparison of the analytical results from portable XRF and ICP revealed that, there was a similar tendency although there was a slight difference between the two measured datasets. The evaluation showed that the hazardous heavy metal of the highest concentration was Cd followed by Cr > Cu > Ba > Co > Pb > Sb. Therefore, XRF could be useful for measuring heavy metals above a certain concentration with the primary screening method. To keep childcare rooms healthy, it is necessary to add Ba, Sb and Zn which are contained in high concentrations in interior finishing materials to environmental safety standards.

Key Words: X-ray fluorescence (XRF), Inductively coupled plasma (ICP), Finishing material, Childcare room