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어린이 주요 활동 공간의 휘발성 유기화합물 노출로 인한 건강 위해성 평가
양지연(Ji-Yeon Yang),김호현(Ho-Hyun Kim),양수희(Su-Hee Yang),김선덕(Sun-Duk Kim),전준민(Jun-Min Jeon),신동천(Dong-Chun Shin),임영욱(Young-Wook Lim) 환경독성보건학회 2010 환경독성보건학회지 Vol.25 No.1
This study assessed the lifetime cancer and non-cancer risk of aldehydes and volatile organic compounds exposure of young children at child-care facilities and indoor playgrounds in Korea. The samples were collected at various children's facilities (40 day-care houses, 42 child-care centers, 44 kindergartens, and 42 indoor play-grounds) in summer (Jul~Sep, 2007), winter (Jan~Feb, 2008) and Spring (Mar~Apr, 2008) periods, and analyzed by GC-MS. We estimated the lifetime excess cancer risks (ECRs) of formaldehyde, acetaldehyde, benzene, chloroform, CCI4 and tetrachloroethylene, and the hazard quotients (HQs) of Non-carcinogens (toluene, xylene, benzaldehyde and formaldehyde). Formaldehyde evaluated both cancer and non-cancer risk. The average ECRs of formaldehyde for young children were 1 × 10?⁴ ~ 1 × 10?? level in all facilities. HQs of four non-carcinogens did not exceed 1.0 for all subjects in all facilities.
어린이 주요 활동 공간에서의 금속 원소류 다경로 노출에 의한 건강 위해성 평가
양지연(Ji-Yeon Yang),김호현(Ho-Hyun Kim),양수희(Su-Hee Yang),김선덕(Sun-Duk Kim),이청수(Chung-Soo Lee),김태훈(Tae-Hoon Kim),손종렬(Jong-Ryeul Sohn),신동천(Dong-Chun Shin),임영욱(Young-Wook Lim) 한국실내환경학회 2011 한국실내환경학회지 Vol.8 No.1
This study assessed the health risk of trace elements in indoor children-facilities by multi-pathway measurements (Air, Dust, Wipe, Hand washing). The samples of indoor place were collected at various children's facilities (40 day-care houses, 42 child-care centers, 44 kindergartens, and 42 indoor playgrounds) in summer (Jul~Sep, 2007) and winter (Jan~Feb, 2008) periods, and analyzed by ICP-MS. The lifetime Excess Cancer Risks (ECRs) were estimated for carcinogen trace elements such as As, Cd, Cr and Ni. For carcinogens, the Excess Cancer Risk (ECR) was calculated by considering the process of deciding Cancer Potency Factor (CPF) and Age Dependent Adjust Factor (ADAF) of the data of adults. Both Hazard Quotients (HQs) and Hazard Index (HI) were estimated for the non-carcinogens and children sensitivity trace elements like Cd, Cu, and Cr. The average ECRs for young children were 1×10-10~1×10-6 (50%th percentile) level in all facilities. Non-carcinogens and Children's sensitivity materials did not exceed 1.0 (HQs, HI) for all subjects in all facilities. For trace elements their detection rates through multi-pathways were not high and their risk based on health risk assessment was also observed to be acceptable. In addition, through education on the risk of multi-pathway exposure of trace elements for managers of facilities as well as for users the risk control of exposure of children.
보육시설 및 실내놀이터의 Aldehydes 노출 및 위해성 평가
김호현(Ho-Hyun Kim),양지연(Ji-Yeon Yang),이청수(Chung-Soo Lee),김선덕(Sun-Duk Kim),양수희(Su-Hee Yang),신동천(Dong-Chun Shin),임영욱(Young-Wook Lim) 한국실내환경학회 2010 한국실내환경학회지 Vol.7 No.2
This study was performed to investigate the concentration of indoor aldehydes in children’s facilities. The samples were collected from various children's facilities (40 playrooms, 42 day-care centers, 44 kindergartens, and 42 indoor playgrounds) in summer (Jul~Sep, 2007), winter (Jan~Feb, 2008) and spring (Mar~Apr, 2008). The ratio of Indoor and outdoor (I/O) of aldehydes exceeds 1.0 and the formaldehyde levels in each child-care facilities were significantly different. We evaluated the lifetime cancer and non-cancer risk of young children due to indoor aldehyde exposure. We estimated the lifetime excess cancer risks (ECRs) of formaldehyde, acetaldehyde and the hazard quotients (HQs) of non-carcinogens (benzaldehyde and formaldehyde). Formaldehyde was evaluated for both carcinogenic and non-carcinogenic risk. The average ECRs of formaldehyde for young children were 1×10?⁴~1×10 ?? level in all facilities. HQs of four non-carcinogens did not exceed 1.0 for all subjects in all facilities.