Study on Soil Extraction Methods for Contamination Assessment of Heavy Metals in Soil

Abstract

Environmental geochemists have attempted to select proper soil extraction methods that deeply reflect the bioavailability, phytoavailability, and geochemical mobility of elements for the assessment of heavy metal contamination in soil. However, they are faced with complications during the process due to the complexity of heavy metal forms in soil and diversity in existing soil extraction methods. The present study summarizes the information on soil contaminated with heavy metals in Korea and current research trends on various single and sequential extraction techniques through a literature survey. This work is expected to serve as a fundamental reference for researchers to select an appropriate extraction method for evaluating bioavailability, phytoavailability, and geochemical mobility of heavy metals in soil.

Study on Accuracy Improvement of Predictive Model of Arsenic Transfer from Contaminated Soil to Polished Rice

“…단일용출법은 유효태 중금속의 함량을 나타낼 뿐더러 간편하게 적용이 가능하므로 수많은 용출법이 제 안되었다 (Mehlich, 1984;Ure, 1996;Chojnacka et al, 2005). 반면 연구 목적에 따른 적정 용출제를 선별하기 어렵고 추출된 함량이 지닌 과학적 의미를 명확히 파악 하기 어렵다는 단점이 있다 (Han et al, 2020). 농경지 토양에서 중요한 것은 다양한 용출 방법으로 파 악한 토양 내 비소 및 중금속 함량 중 어느 정도가 재배 작물로 전이되는가를 예측하는 것이다.…”

The Statistical Study on the Effects of Physicochemical Properties of Soil on Single Extraction Methods for Heavy Metals

“…. 왕수 등의 혼합강산으로 추출된 토양 내 고농 도의 중금속 함량이 그대로 작물로 전이될 것으로 예측 하기는 어렵다 (Krishnamurti and Naidu, 2003;Meers et al, 2007a,b (Meers et al, 2007a;Seo et al, 2013;Han et al, 2020 (Meers et al, 2007a,b;Seo et al, 2013;Lim et al, 2014;Kelepertzis et al, 2015;Chiou and Hsu, 2019 (Zhu et al, 2012;Lima et al, 2016), 토양의 물리화학적 특성과 단일용출간의 상관분석 및 회 귀분석 (Meers et al, 2007a;Seo et al, 2013;Sungur et al, 2014) (Song et al, 2019). 측정된 작열감량을 이용하여 Eq.…”