In this study, 40 residents of the Gwangyang and Yeosu areas were assessed for their level of exposure to heavy metals (As, Cd, Ni) from April 2017 to June 2018. The aim was to understand the differences in levels of indoor exposure to heavy metals (As, Cd, Ni), and a health risk assessment was conducted to determine whether there was any fatal cause from carcinogenic elements. The mean concentrations of PM10 particles indoors were As 0.24 μg/m3, Cd 0.07 μg/m3, and Ni 0.89 μg/m3. The health risk assessment for the arsenic, cadmium, and nickel in indoor air confirmed that the mean values exceeded the cancer risk tolerances specified by the U.S. EPA, for As (males 3.07 × 10−4, females 3.35 × 10−4), Cd (males 3.83 × 10−5, females 4.18 × 10−5), and Ni (males 6.36 × 10−5, females 6.95 × 10−5).

Abstract
 1. 서 론
 2. 연구대상 및 방법
  2.1 연구기간 및 대상
  2.2 시료채취 및 분석
  2.3 건강위해성평가
  2.4 통계분석
 3. 연구결과 및 고찰
  3.1 미세먼지 중의 중금속(As, Cd, Ni) 농도
  3.2 중금속의 위해성평가
 4. 결 론
 References

• 오유진(순천향대학교 환경보건학과) | Yujin Oh (Department of Environmental Health Science, Soonchunhyang University)
• 한윤덕(순천향대학교 환경보건학과) | YoonDeok Han (Department of Environmental Health Science, Soonchunhyang University)
• 김윤재(순천향대학교 환경보건학과) | Yunjae Kim (Department of Environmental Health Science, Soonchunhyang University)
• 정성현(순천향대학교 환경보건학과) | Sunghyeon Jung (Department of Environmental Health Science, Soonchunhyang University)
• 정원희(순천향대학교 환경보건학과) | Wonhee Jung (Department of Environmental Health Science, Soonchunhyang University)
• 임지영(화학물질 안전원) | Ji Young Im (National Institute of Chemical Safety, Ministry of Environment)
• 이종화(순천향대학교 환경보건학과) | JongWha Lee (Department of Environmental Health Science, Soonchunhyang University)
• 박무균(서울대학교 이비인후과) | Moo-Kyun Park (Department of Otorhinolaryngology, Seoul National University College of Medicine)
• 손부순(순천향대학교 환경보건학과) | Bu-Soon Son (Department of Environmental Health Science, Soonchunhyang University) Corresponding author