- 유아교육시설의 표면 및 공기 중 납 농도 평가
- ㆍ 저자명
- 윤충식,백도현,Yoon. Chung-Sik,Paik. Do-Hyeon
- ㆍ 간행물명
- 韓國環境保健學會誌
- ㆍ 권/호정보
- 2006년|32권 1호|pp.1-7 (7 pages)
- ㆍ 발행정보
- 한국환경보건학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
This study was performed to investigate airborne lead concentration and surface lead contents in preschool facilities. Arithmetic mean of indoor lead concentration in urban area was $44.7;ng/m^3$ (Geometric mean $32.1;ng/m^3$) whereas outdoor concentration was $39.5;ng/m^3$ (GM $22.8;ng/m^3$). In rural area, airborne lead concentrations were $14.2;ng/m^3;(GM;7.9 ng/m^3),;12.6;ng/m^3;(GM;5.6 ng/m^3)$, respectively. There is statistical significance of the lead concentrations among the locations of preschool facilities. About $37\%$ of qualitative lead check samples was positive and mainly was found in lead based paint. Though lead concentrations on the floor and window sill were well below the US EPA and HUD standard (floor $40;{mu}g/ft^2;(4.3;{mu}g/100;cm^2)$, window sill $250;{mu}g/ft^2;(26.9;{mu}g/100;cm^2)$, respectively), there were much samples which exceed the standard, i.e., $29\%$ of surface wall, $20\%$ of the desk and chair, $100\%$ of painted wood box of tested samples. In view of our study and hazard of lead to children, we recommended that the contents of lead in preschool facilities should be lowered as possible.