Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8852825 | Chemosphere | 2018 | 6 Pages |
Abstract
We determined the concentrations of dioxins (polychlorinated dibenzo-p-dioxins, dibenzofurans and dioxin-like polychlorinated biphenyls) in 46 dietary supplement products, containing the oil of fish, marine mammals, or egg yolk, on the Japanese market between 2007 and 2014. Dioxins were detected in 43 of the 46 products tested at concentrations from 0.00015 to 67Â pg TEQ/g. The highest concentration of dioxins was found in a shark liver oil product which varied insignificantly in five batches collected over a two-year period. The dioxin intakes from these five batches reached 2.3-2.8Â pg TEQ/kg bw/day, or 58%-70%, respectively, of the Japanese tolerable daily intake (TDI) of 4Â pg TEQ/kg bw/day. However, the dioxin intakes from most of the other products tested were less than 5% of the TDI. Although rare, supplements based on animal oils may contain relatively high concentrations of dioxins, leading to a substantial increase in dioxin intakes.
Keywords
Related Topics
Life Sciences
Environmental Science
Environmental Chemistry
Authors
Tomoaki Tsutsumi, Satoshi Takatsuki, Reiko Teshima, Rieko Matsuda, Takahiro Watanabe, Hiroshi Akiyama,