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Cho, Jaeweon
OWIELAB(Organic-Water Interface Engineering Laboratory)
Research Interests
  • Convergence of Science and Arts, Feces Standard Money (FSM), Water & Energy

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Perchlorate assessment of the Nakdong and Yeongsan watersheds, Republic of Korea

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Title
Perchlorate assessment of the Nakdong and Yeongsan watersheds, Republic of Korea
Author
Quinones, OscarOh, Jeong-EunVanderford, BrettKim, Joon HaCho, JaeweonSnyder, Shane A.
Keywords
Analysis; Korea; Perchlorate; Surface water
Issue Date
2007-07
Publisher
WILEY-BLACKWELL
Citation
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, v.26, no.7, pp.1349 - 1354
Abstract
The objective of the present study was to conduct a preliminary assessment for perchlorate in surface water, drinking water, and wastewater treatment plant effluent samples obtained from the Nakdong and Yeongsan watersheds in the Republic of Korea. Samples were analyzed for perchlorate using ion chromatography with suppressed conductivity detection (IC-CD) and/or liquid chromatography with tandem mass spectrometry detection (LC-MS/MS). Method reporting limits were 5.0 mu g/L for IC-CD and 0.05 mu g/L for LC-MS/MS analysis. At perchlorate levels above 5.0 mu g/L, IC-CD and LC-MS/MS provided comparable results. The levels of perchlorate detected in the samples procured from the Yeongsan watershed were <5.0 mu g/L in each case. However, Nakdong watershed samples contained perchlorate at levels up to 60 mu g/L. The highest concentrations of perchlorate were found in surface water samples, although drinking water contained perchlorate at concentrations up to 35 mu g/L. In a subset of samples analyzed by LC-MS/MS, chlorate and bromate also were detected at concentrations ranging from <0.10 to 44 mu g/L and <0.10 to 2.6 mu g/L, respectively. To the best of the authors' knowledge, this is the first perchlorate assessment reported for water sources in the Republic of Korea
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DOI
10.1897/06-469R.1
ISSN
0730-7268
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