Occurrence of perchlorate in rice from different areas in the Republic of Korea

Do Hyung Kim, Yeomin Yoon, Kitae Baek, Jonghun Han, Namguk Her

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24 Scopus citations

Abstract

Perchlorate concentrations in rice samples from many different provinces, and correlation with surface water contamination, were investigated in the Republic of Korea. Perchlorate levels in the 51 rice samples purchased from local markets ranged from below the detection limit to 1.79 ± 0.39 μg/kg with a mean level of 0.21 μg/kg and 7 samples collected from the Nakdong River watershed ranged from 0.38 ± 0.1 to 3.23 ± 0.47 μg/kg with a mean level of 0.9 μg/kg. The correlation coefficient between perchlorate levels in rice samples from the Nakdong river watershed and the levels in surface water was estimated to be approximately 0.904 in the 95 % confidence interval. These results show that surface water contamination was highly related to the perchlorate pollution of rice in the Republic of Korea.

Original languageEnglish
Pages (from-to)1251-1257
Number of pages7
JournalEnvironmental Science and Pollution Research
Volume21
Issue number2
DOIs
StatePublished - Jan 2014

Bibliographical note

Funding Information:
Acknowledgments This research was supported by the Ministry of Education, Science and Technology in South Korea (project number, 20090072035).

Keywords

  • Occurrence
  • Perchlorate
  • Rice
  • River watershed contamination

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