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Portable XRF를 이용한 어린이 야외 놀이용품의 중금속 측정
김형진 ( Hyung Jin Kim ),백영만 ( Young Man Baek ),정경훈 ( Kyung Hoon Jung ),홍석연 ( Suk Youn Hong ),허화진 ( Hwa Jin Heo ),성진욱 ( Jin Uk Seong ),박제철 ( Je Chul Park ) 한국환경과학회 2013 한국환경과학회지 Vol.22 No.4
The present study was conducted to judge the applicability of field quality control by children`s goods manufacturers by assessing the contents of heavy metals such as Pb and Cd in outdoor play goods for children through measurement using Portable XRF and comparing the results through detailed analyses using ICP. Heavy metal contents of 711 part samples of 505 products were measured using XRF. According to the results, the ratio of products that exceeded the Pb and Cd content standards specified under the Quality Management and Safety Control of Industrial Products Act were 2.4% and 2.6%. Many products certified for self-regulated safety exceeded the standards and thus it was considered that harmful chemical material centered safety management systems would be necessary. Detailed ICP analyses of some products were compared and the results showed deviations of 0.9∼80.8% from XRF results. The reasons for this are deviations in the characteristics of measured cross sections and the homogeneity of samples resulting from sample preparation methods, etc. Therefore, it is considered that field quality control will be applicable if measuring methods are efficiently established based on product characteristics and calibration curve preparation methods are established through quality control.
위해관리계획서 작성 사업장 간 ‘비상대응 정보공유체계’ 구축에 관한 연구
김덕한(Duk Han Kim),최성륜(Sung Ryun Choi),천영우(Young Woo Chon),이선민(Sun Min Lee),허화진(Hwa Jin Heo) 한국위험물학회 2020 한국위험물학회지 Vol.8 No.1
Currently, high-risk business sites that handle accident-preparatory materials more than the designated quantity must submit a risk management plan. Through this, the company manages the risk of spreading out of business sites due to chemical handling. However, as the number of chemical businesses in Korea increases day by day, the frequency of accidents and their damage are only increasing. At this time, initial response is important to reduce accident damage, but in small and medium-sized businesses, initial response is not good. To solve this problem, the emergency response information sharing system in the project site management plan should be established to jointly respond to accidents. In this study, we derived information that can be shared in establishing a system for sharing emergency response information among businesses. It also provided guidelines for improving emergency response information and establishing a system for sharing emergency response information among businesses.