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Comparative study of PCDDs/DFs concentration in crop and its cultural environment  

Kwon, Oh-Kyung (National Institute of Agricultural Science and Technology, RDA)
Eun, Hee-Soo (National Institute for Agro-Environmental Sciences)
Choi, Dal-Soon (National Institute of Agricultural Science and Technology, RDA)
Hong, Su-Myeong (National Institute of Agricultural Science and Technology, RDA)
Kwon, Hye-Young (National Institute of Agricultural Science and Technology, RDA)
Choi, Joo-Hyun (National Institute of Agricultural Science and Technology, RDA)
Publication Information
The Korean Journal of Pesticide Science / v.10, no.2, 2006 , pp. 91-98 More about this Journal
Abstract
The objective of this study was to compare dioxin contents in spinach, soil and air and to evaluate the relation of dioxin concentrations in crop and its cultural environment. Sample weighing for the precise peak detection in dioxin analysis was also determined. The fragmentogram of HpCDFs, and especially OCDF, indicated different pattern from that of TeCDD/F, PeCDD/Fs and HxCDDs/Fs, which showed the same pattern. In case of field culture spinach (wet sample 2 kg) in Japan, peak of OCDF could be detected clearly, while market spinach (wet sample 1 kg) showed the only baseline detection. The result makes it possible to suppose the fact that production place of market spinach was not contaminated with OCDF, but atmospheric pattern of production place was similar to that of open field sample. So we could decide that the sample of agricultural crops were needed more than 2 kg in wet weight for the evaluation of precise peak The total tendency of dioxin concentration levels in field culture spinach may be affected by OCDD and HCDF distributed in soil. However, on the whole the major factor seems to be the atmospheric deposition.
Keywords
dioxin analysis; spinach; soil; air; comparison of concentration;
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