김종성 (서울대학교) | 한빛사논문 > 한빛사

한빛사논문

조회223

서울대학교

CV File 325 kb

Environ. Int., Volume 185, March 2024, 108534 | https://doi.org/10.1016/j.envint.2024.108534 Integrated assessment of the natural purification capacity of tidal flat for persistent toxic substances and heavy metals in contaminated sediments

Taewoo Kim ^a,1, Changkeun Lee ^a,1, Inha Kwon ^a, Junghyun Lee ^b, Shin Yeong Park ^a, Dong-U Kim ^a, Jongmin Lee^a, Gayoung Jin ^a, Mehdi Yousefzadeh ^c, Hanna Bae ^d, Yeonjae Yoo^e, Jae-Jin Kim^e, Junsung Noh ^f, Seongjin Hong ^g, Bong-Oh Kwon ^h, Won Keun Chang ⁱ, Gap Soo Chang^j, Jong Seong Khim^a

^aSchool of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea

^bDepartment of Environmental Education, Kongju National University, Gongju 32588, Republic of Korea

^cSchool of Computer Science, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran

^dGeoSystem Research Corporation, Gunpo 15807, Republic of Korea

^eDivision of Environmental Science & Ecological Engineering, College of Life Science & Biotechnology, Korea University, Seoul 02841, Republic of Korea

^fDepartment of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea

^gDepartment of Marine Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea

^hDepartment of Marine Biotechnology, Kunsan National University, Kunsan 54150, Republic of Korea

ⁱKorea Maritime Institute, Busan 49111, Republic of Korea

^jDepartment of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, SK S7N5E2, Canada

¹co-first authors

Corresponding author : Jong Seong Khim

Abstract

Natural purification of pollutants is highly recognized as regulating ecosystem services; however, the purification capacity of tidal flats remains largely unknown and/or unquantified. A 60-day mesocosm transplant experiment was conducted in situ to assess the purification capacity of natural tidal flats. We adopted the advanced sediment quality triad approach, monitoring 10 endpoints, including chemical reduction, toxicity changes, and community recoveries. The results indicated that contaminated sediments rapidly recovered over time, particularly > 50% within a day, then slowly recovered up to ∼ 70% in a given period (60 days). A significant early reduction of parent pollutants was evidenced across all treatments, primarily due to active bacterial decomposition. Notably, the presence of benthic fauna and vegetated halophytes in the treatments significantly enhanced the purification of pollutants in both efficacy and efficiency. A forecast linear modeling further suggested additive effects of biota on the natural purification of tidal flats, reducing a full recovery time from 500 to 300 days. Overall, the triad approach with machine learning practices successfully demonstrated quantitative insight into the integrated assessment of natural purification.

논문정보

형식Research article
게재일2024년 03월 (BRIC 등록일 2024-04-17)
연구진국내(교신)+국외 연구진
분야 기타 > 기타

댓글 작성 로그인

CV 열람하기

연락처 보기