This study investigated Extremely Low Frequency-Magnetic Fields (ELF-MF) exposure levels among housewives for a 24-Hour activity pattern to identify related factors for the exposures. To achieve the objective of the study, we surveyed ELF-MF levels using EMDEX II in a living environment from January to December 2016. We also made subjects write a Daily Activity Pattern in order to identify durations for staying and related information in the environment of exposures. Subjects showed that they spent the longest time in sleep and at home, at 487.5 minutes (KOSIS: 479.0 minutes) and 472.1 minutes (KOSIS: 428.0 minutes), respectively. Furthermore, the 24- hour time-weighted average (TWA) of 54 housewives was 1.24 ± 3.48 mG (GM: 0.52 mG). The ELF-MF exposure levels for all Multiuse Facilities were far below the recommended standards of EMF Guideline Korea and ICNIRP. Thus, these results will provide useful data for the determination of ELF-MF management and reduction methods in living environments.

1. 서 론
 2. 연구방법
  2.1 연구대상 및 방법
  2.2 ELF-MF 측정 및 방법
  2.3 통계분석 및 정도관리
 3. 연구결과
  3.1 가정주부의 미세활동별 생활패턴 조사
  3.2 미세공간 이용에 따른 노출량 분석
  3.3 활동특성에 따른 주부집단의 전자파 노출량 분석
  3.4 주부집단의 노출량 산정
 4. 결 론
 References

• 정준식(국립환경과학원 생활환경연구과, Indoor Air and noise Research Division, National Institute of Environmental Research) | Joon-sig Jung
• 정현성(국립환경과학원 생활환경연구과, Indoor Air and noise Research Division, National Institute of Environmental Research) | Hyun-sung Jung
• 이규목(국립환경과학원 생활환경연구과, Indoor Air and noise Research Division, National Institute of Environmental Research) | Kyu-mok Lee
• 정대관(국립환경과학원 생활환경연구과, Indoor Air and noise Research Division, National Institute of Environmental Research) | Dae-kwan Jung
• 권명희(국립환경과학원 생활환경연구과, Indoor Air and noise Research Division, National Institute of Environmental Research) | Myung-hee Kwon
• 정현미(국립환경과학원 생활환경연구과, Indoor Air and noise Research Division, National Institute of Environmental Research) | Hyen-mi Chung
• 이재원(국립환경과학원 생활환경연구과, Indoor Air and noise Research Division, National Institute of Environmental Research) | Jae-won Lee Corresponding author