Polychlorinated dibenzo-p-dioxins, dibenzofurans, and coplanar polychlorinated biphenyls (dioxins) in silage corn: The influence of contaminated soil and air
2004
Uegaki, R. (National Inst. for Agro-Environmental Sciences, Tsukuba, Ibaraki (Japan)) | Seike, N. | Eun, H. | Ueji, M.
Silage corn was grown in 2 growth chambers in 2 soils contaminated with 2 concentrations and isomer profiles of dioxins, to analyze how dioxins from soil might contaminate silage corn. The first growth chamber contained 3 pots filled with soil A (containing 4500 pg toxic equivalent quantity [TEQ]E-1) and 3 pots with soil B (20 pg-TEQ gE-1).The second growth chamber contained 6 pots filled with soil B. The dioxin concentrations in the corn grown in the first chamber were higher than those in the corn grown in the second chamber. All corn grown in the first chamber contained the same dioxin concentration and isomer profile in spite of being grown on different soils. Analysis of dioxin isomer profiles indicated that the corn did not take up dioxins directly from the soil, but was contaminated from the air.
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