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Figure 3. GC-ECD chromatograms of an extractofa blank control honey
sample (A), and a recently purchased BDE-209 standard (50 ng/mL) (B)
and extracts of the BDE-209 fortified honey samples after 4 weeks of
incubation at 25 °C (C) and 60 °C (D). Peak 1 is BDE-209. Peaks 3, 4, 5,
and 7 are BDE-207, BDE-206, BDE-183, and BDE-153, respectively,
which aredegradationproducts of BDE-209. Other peaks(e.g., 2, 6, and8)
are also possible degradation products of BDE-209.
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(
In summary, this study investigated the concentrations of 27
PBDEs in honey samples labeled as originating in 17 countries
and regions. The results from this data set showed higher levels of
P
the
PBDE , excluding BDE-209, in honey samples from
26
developed countries in comparison with those from developing
(16) Gomara, B.; Herrero, L.; Gonzalez, M. J. Survey of polybrominated
diphenyl ether levels in Spanish commercial foodstuffs. Environ. Sci.
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countries, or background regions. The concentrations of the
P
PBDE27 ranged from 2,900 to 13,910 pg/g in honey samples
originating in developed countries and from 1,580 to 12,730 pg/g in
those originating in developing countries. BDE-209 was the most
dominant congener in all honey samples. BDE-47, -49, -138, and
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(
-
153 were also dominant congeners and accounted for approxi-
P
mate 50% of the PBDE26 (excluding BDE-209). The findings
are consistent with long, heavy historical uses of PBDE products
in developed countries and current, heavy uses of BDE-209 in
developing countries. BDE-209 can be degraded to less bromi-
nated congeners in honey.
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