In this study, ELF-MF levels of subway trains were measured to understand the status of the intensity of ELFMF. The measurement points for the train are selected in the center of each train compartment(pantagraph compartment, motor-driven compartment and the compartment that is not connected to any other electric equipment) using EMDEX II. ELF-MF levels of trains were measured from the starting to the terminal station in each lines(Seoul line 1-9, Incheon line 1, Incheon international airport line, Gyungui line, Bundang line, Gyeongchun line, Joongang line, Suin line). We found that the mean and range of ELF-MF levels in the DC power subway train are 2.4 and 0.1~125.9 mG, respectively, while the mean and range of ELF-MF levels in the AC power subway train are 10.4and 0.0~156.3 mG, respectively. Furthermore, the maximum ELF-MF level(156.3 mG) was lower than the reference level(ICNIRP 833 mG, 60Hz). The findings of this study in relation to the characteristics of ELF-MF for subway will be useful to derive the ELF-MF exposure coefficient from our living environment in a subsequent study.

1. 서 론
 2. 연구방법
  2.1 연구대상 및 측정기기
  2.2 조사방법
  2.3 노선별 특징 및 측정위치
 3. 연구결과 및 고찰
  3.1 전력방식에 따른 극저주파 자기장 발생 특성
  3.2 측정 위치별 극저주파 자기장 발생특성
  3.3 인버터 종류에 따른 극저주파 자기장 발생 특성
  3.4 국내 교통수단 별 극저주파 자기장 발생량 비교
 4. 결 론
 감사의 글
 References

• 정대관(국립환경과학원 환경기반연구부 생활환경연구과) | Dae-kwan Jung
• 정준식(국립환경과학원 환경기반연구부 생활환경연구과) | ·Joon-sig Jung
• 이규목(국립환경과학원 환경기반연구부 생활환경연구과) | Kyu-mok Lee
• 박형규(국립환경과학원 환경기반연구부 생활환경연구과) | Hyung-kyu Park
• 이재원(국립환경과학원 환경기반연구부 생활환경연구과) | Jae-won Lee
• 서충열(국립환경과학원 환경기반연구부 생활환경연구과) | Chung-youl Seo
• 이우석(국립환경과학원 환경기반연구부 생활환경연구과) | Woo-seok Lee
• 권오상(국립환경과학원 환경기반연구부 생활환경연구과) | Oh-Sang Kwon
• 구진회(국립환경과학원 환경기반연구부 생활환경연구과) | Jin-hoi Gu Corresponding Author