Econ. Environ. Geol. 2003; 36(5): 357-363

Published online October 31, 2003

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Background Levels and Daily Intake of As, Cd, Cu, Pb and Zn in White Rice Produced in Korea

Myeong Chae Jung*

*Department of Earth Resources & Environmental Geotechnics Engineering, Semyung University, Jecheon 390-711, Korea

Correspondence to :

Myeong Chae Jung

jmc65@semyung.ac.kr

Received: July 11, 2003; Accepted: September 15, 2003

Abstract

The objective of this study is to investigate background levels of As and heavy metals (Cd, Cu, Pb and Zn) and their dietary intakes from white rice produced at various provinces in Korea during 2000. Except Jeju-do, sixtythree rice grain samples were taken at 8 provinces and analyzed for the elements using ICP-AES after acid digestion. The average contents of As, Cd, Cu, Pb and Zn in the samples were 0.126, 0.040, 1.96, 0.361 and 16.6 mg/kg(DW), respectively. These levels are within the ranges of worldwide average concentrations in rice grains reported by various research. Assuming the rice consumption of 256 g/day by overall households in Korea, the amount of daily intake of As, Cd, Cu, Pb and Zn by the rice were estimated to be 32.3, 10.2, 502, 92.4 and 4,250 μg/day, respectively. Those amount of daily intakes of the elements by the rice are within the WHO's guide for trace elements, however, rice consumption is one of the most important sources of dietary intake of As and some heavy metals in Korean population.

Keywords background levels, As, Cd, Cu, Pb, Zn, white rice, daily intake

Article

Econ. Environ. Geol. 2003; 36(5): 357-363

Published online October 31, 2003

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Background Levels and Daily Intake of As, Cd, Cu, Pb and Zn in White Rice Produced in Korea

Myeong Chae Jung*

*Department of Earth Resources & Environmental Geotechnics Engineering, Semyung University, Jecheon 390-711, Korea

Correspondence to:

Myeong Chae Jung

jmc65@semyung.ac.kr

Received: July 11, 2003; Accepted: September 15, 2003

Abstract

The objective of this study is to investigate background levels of As and heavy metals (Cd, Cu, Pb and Zn) and their dietary intakes from white rice produced at various provinces in Korea during 2000. Except Jeju-do, sixtythree rice grain samples were taken at 8 provinces and analyzed for the elements using ICP-AES after acid digestion. The average contents of As, Cd, Cu, Pb and Zn in the samples were 0.126, 0.040, 1.96, 0.361 and 16.6 mg/kg(DW), respectively. These levels are within the ranges of worldwide average concentrations in rice grains reported by various research. Assuming the rice consumption of 256 g/day by overall households in Korea, the amount of daily intake of As, Cd, Cu, Pb and Zn by the rice were estimated to be 32.3, 10.2, 502, 92.4 and 4,250 μg/day, respectively. Those amount of daily intakes of the elements by the rice are within the WHO's guide for trace elements, however, rice consumption is one of the most important sources of dietary intake of As and some heavy metals in Korean population.

Keywords background levels, As, Cd, Cu, Pb, Zn, white rice, daily intake

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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