This study was performed to identify and quantify the asbestos fibers released from two types of asbestos-cement slate roofs. One is a plant roof installed in 1987 which contained 15% chrysotile, and the other is a residential roof installed before 1983 which contained 12% chrysotile. The concentrations of asbestos fibers in air surrounding asbestos-cement slate roofs and in the falling water harvested from the same roofs on rainy days ranged from 0.0012 to 0.0018 f/mL and from 1,764 f/L to 10,584 f/L, respectively. The concentration of inorganic fibers in the soil around asbestos-cement slate roofs was from 217 to 348 f/g. With the above results, the excess lifetime cancer risk (ELCR) for the risk assessment of the asbestos fibers released from asbestos-cement slate based on US EPA IRIS (Integrated risk information system) model is within 5.5E-06 ~ 6.5E-06 levels which indicates that the levels do not exceed “the acceptable risk(1.0E-05)” recommended by WHO. The asbestos concentration in air, drained rainfall and soil around the plant slate roof was higher than that around residential slate roof, but the excess lifetime cancer risk (ELCR) from residential slate was higher than that from plant slate. This s

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 조사대상
  2.2. 공기 중 석면 노출농도 측정
  2.3. 빗물 중 석면농도 측정
  2.4. 토양 중 석면농도 측정
  2.5. 인체 위해성평가
 3. 결과 및 고찰
  3.1. 석면슬레이트 지붕 주변의 공기 중 석면농도
  3.2. 슬레이트지붕으로부터 유출된 빗물 중 석면농도
  3.3. 슬레이트지붕 주변의 토양 중 석면농도
  3.4. 인체 위해성평가
 4. 결론
 REFERENCE

• 정재원(부산광역시보건환경연구원) | Jae-won Jeong (Busan Metropolitan City Institute of Health and Environment) Corresponding author
• 유은철(부산광역시보건환경연구원) | Eun-chul Yoo (Busan Metropolitan City Institute of Health and Environment)
• 이상준(부산대학교 환경연구소) | Sang-Jonn Lee (Institute of Environmental Studies, Pusan National University)
• 박근태(부산대학교 나노소재공학과) | Geun-Tae Park (Department of Nanomaterials Engineering, Pusan National University)