Hebei Spirit oil spill monitored on site by fluorometric detection of residual oil in coastal waters off Taean, Korea |
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Authors: | Moonkoo Kim Sang Hee Hong Hyun-Woo Choi Jongho Won |
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Affiliation: | a Oil and POPs Research Group, Korea Ocean Research and Development Institute, 391 Jangmok-ri, Geoje-shi 656-834, Republic of Korea b Ocean Data Division, Korea Ocean Research and Development Institute, 1270 Sa-dong, Ansan 426-744, Republic of Korea |
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Abstract: | The spatiotemporal distributions of dissolved and/or dispersed oil in seawater and pore water were monitored on site by fluorometric detection method after the Hebei Spirit oil spill. The oil concentrations in intertidal seawater, 15 days after the spill, were as high as 16,600 μg/L and appeared to decrease below the Korean marine water quality standard of 10 μg/L at most sites 10 months after the spill. Fluorometric detection of oil in pore water was introduced to eliminate the effects of grain size for the quantification of oil in sediments and to better explain spatial and temporal distribution of oil pollution at sandy beaches. The fluorescence detection method was compared with the conventional laboratory technique of total petroleum hydrocarbon analysis using gas chromatography. The method of fluorescence detection of oil was capable of generating results much faster and more cost-effectively than the traditional GC technique. |
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Keywords: | Oil spill Seawater Pore water Fluorescence Total petroleum hydrocarbon Hebei Spirit |
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