The risk of various hazardous substances in aquatic environment comprises not only the concentration of substances in the environmental medium but also their accumulation in fish through complex food web and the health risks to humans through the fish. In Korea, the monitoring of residual toxicant in aquatic ecosystems began in 2016 following the enforcement of the Acts on registration and evaluation for the management of chemicals used in daily life (consumer chemical products), and attention has been paid to potentially hazardous substances attributed to them. Recently, studies have been carried out to investigate the distribution of these hazardous substances in the ecosystem and calculate their emission factors. These include the accumulation and transport of substances, such as detergents, dyes, fragrances, cosmetics, and disinfectants, within trophic levels. This study summarizes the results of recently published research on the inflow and distribution of hazardous substances from consumer chemical products to the aquatic environment and presents the scientific implication. Based on studies on aquatic environment monitoring techniques, this study suggests research directions for monitoring the residual concentration and distribution of harmful chemical substances in aquatic ecosystems. In particular, this study introduces the directions for research on trophic position analysis using compound specific isotope analysis and trophic magnification factors, which are needed to fulfill the contemporary requirements of selecting target fish based on the survey of major fish that inhabit domestic waters and assessment of associated health risk. In addition, this study provides suggestions for future biota monitoring and chemical research in Korea.

Abstract
서 론
수환경 내 유 해성분에 대 한 연 구
    1. 수환경 모니터링 연구
    2. 수생 생물 축적 및 위해성 연구
어류를 이용한 생물 축적 연구
    1. 생물 축적 연구의 중요성 및 생물 확대 계수
    2. 어류의 유해물질 축적 연구의 현재와 시사점
요약 및 결론:유해물질 모니터링 연구의 방향
적 요
REFERENCES

• 원은지(한양대학교 해양대기과학연구소, 한양대학교 해양융합과학과) | Eun-Ji Won (Institute of Ocean & Atmospheric Science, Hanyang University, Department of Marine Sciences and Convergent Technology, Hanyang University)
• 조하은(한양대학교 해양융합과학과) | Ha-Eun Cho (Department of Marine Sciences and Convergent Technology, Hanyang University)
• 김도균(한양대학교 해양융합과학과) | Dokyun Kim (Department of Marine Sciences and Convergent Technology, Hanyang University)
• 홍성진(충남대학교 해양환경과학과) | Seongjin Hong (Department of Ocean Environmental Sciences, Chungnam National University)
• 신경훈(한양대학교 해양대기과학연구소, 한양대학교 해양융합과학과) | Kyung-Hoon Shin (Institute of Ocean & Atmospheric Science, Hanyang University, Department of Marine Sciences and Convergent Technology, Hanyang University) Corresponding author