• Elution Characteristics of Arsenic, Cadmium, Copper and Lead in Paddy Soil Nearby Mining Area Using Two Kinds of Extractant

  • Jicheol Kwon1·Goontaek Lee1*·Myungchae Jung2·Jeong-wook Kim2·Jeong-ki Yoon3 Hyun-Koo Kim3·Ji-in Kim3·Honggil Lee3·Inja Kim3·Taeseung Kim1·Jiyoung Kang1

  • 1NICEM, Seoul National University
    2Sejong University
    3National Institute of Environmental Research

  • 두 가지 추출제를 이용한 광산지 인근 농경지 토양 중 비소, 카드뮴, 구리, 납의 용출 특성 평가

  • 권지철1·이군택1*·정명채2·김정욱2·윤정기3·김현구3·김지인3·이홍길3·김인자3·김태승1·강지영1

  • 1서울대학교 농업생명과학대학 농생명과학공동기기원
    2세종대학교 에너지자원공학과
     3국립환경과학원

Abstract

This study evaluated the relative extraction ratio (RER) of As and heavy metals (Cd, Cu and Pb) in paddy soils using the two types extractant, 0.05 M EDTA and 0.43 M HNO3. The RER was calculated by dividing the concentrations of metals obtained by 0.05 M EDTA or 0.43 M HNO3 extraction by those obtained by aqua regia extraction. The RER of 0.43 M HNO3 was larger than that of 0.05 M EDTA. Correlation analysis indicated there was statistically significant correlation (p<0.001) between the concentration in aqua regia and 0.05 M EDTA or 0.43 M HNO3. Especially, Cd showed the higher correlation than other metals. Stepwise multiple linear regression analyses indicated soil pH, CEC, organic matter content, and soil texture all influenced the metal extraction rates and bioavailability of the metals.


Keywords: Soil, Relative extraction ratio (RER), Extractability, Arsenic, Heavy metal 

This Article

  • 2019; 24(6): 1-8

    Published on Dec 31, 2019

  • 10.7857/JSGE.2019.24.6.001
  • Received on Nov 20, 2019
  • Revised on Nov 24, 2019
  • Accepted on Nov 29, 2019

Correspondence to

  • Goontaek Lee

  • NICEM, Seoul National University

  • E-mail: gtlee@snu.ac.kr