Environmental Sciences Europe

Table 2 Concentrations (µg kg⁻¹ wet weight) of flame retardants in blue mussels and eelpout filet in 2015 and long-term trends

From: Chemicals of emerging concern in marine specimens of the German Environmental Specimen Bank

Chemical	Blue mussel soft body					Eelpout filet
	NS 1		NS 2	BS		NS 1	NS 2	BS
	Conc. (µg kg⁻¹)	Trend	Conc. (µg kg⁻¹)	Conc. (µg kg⁻¹)	Trend	Conc. (µg kg⁻¹)	Conc. (µg kg⁻¹)	Conc. (µg kg⁻¹)
DP	0.0073	o	0.0083	< LOQ^a	–	0.0029	< LOQ^a	< LOQ^a
Dec 602	0.0048	–	0.0033	0.001	–	0.0107	0.0048	0.0009
Dec 603	0.001	–	0.0006	< 0.0003		0.0018	0.0005	< 0.0003
Dec 604	< 0.0004		< 0.0005	< 0.0005		< 0.0005	< 0.0005	< 0.0004
Cl₁₀-antiDP	< 0.0002		< 0.0002	< 0.0002		< 0.0002	< 0.0002	< 0.0002
Cl₁₁-antiDP	0.0001	–	0.0001	< 0.0001		< 0.0002	<0.0001	< 0.0001
1,5-DPMA	< 0.0001		< 0.0002	< 0.0001		< 0.0002	< 0.0001	< 0.0002
EH-TBB	< 0.0111		< 0.0125	< 0.0143		< 0.0126	< 0.0126	< 0.0117
BEH-TEBP	< 0.0384		0.0559	0.0506		0.0728	< 0.0514	< 0.0404
PBEB	< 0.0003		< 0.0003	< 0.0003		< 0.0003	< 0.0003	< 0.0003
PBT	0.004	+	0.0053	0.0067	o	0.0081	0.0072	0.013
TBP-AE	< 0.0043		< 0.0049	< 0.0056		< 0.0049	< 0.0049	< 0.0046
BATE	< 0.0014		< 0.0016	< 0.0018		< 0.0016	< 0.0016	< 0.0015
TBP-DBPE	< 0.0269	–	0.0989	< 0.0345	–	< 0.0306	< 0.0306	0.103
BTBPE	< 0.0083		< 0.0093	< 0.0106		< 0.0094	< 0.0094	< 0.0087
DBDPE	< 0.0751		0.109	< 0.0964		< 0.0854	< 0.0855	< 0.0789
HBBz	< 0.0008		< 0.0009	< 0.0011	o	< 0.0009	< 0.001	< 0.001
TBA	< 0.0142	o	< 0.016	0.0239	o	0.0219	< 0.0161	0.0694
∑ 6 PBDE	0.0208	–	0.363	0.0455	o	0.0762	0.0288	0.0371

Sampling sites: NS 1: North Sea—Lower Saxony Wadden Sea; NS 2: North Sea—Schleswig–Holstein Wadden Sea; BS: Baltic Sea—Bodden National Park
Italics: quantified substances; DP: sum of syn-DP and antiDP
Trends: o: no significant linear trend; +: increase; −: decrease; blank: insufficient data, no trend calculation possible. Time intervals for trend calculations: blue mussels: NS 1: 1985–2015 BS: 1992–2015. For NS 2 and for eelpout filet, data were only available for 2015. Trend calculation based on lipid normalized concentrations. For full names of chemicals refer to Table 1
^aLOQ for syn-DP: 0.002–0.0026 µg kg⁻¹, LOQ for antiDP: 0.00225–0.0029 µg kg⁻¹, depending on matrix (Additional file 1: Table S1–S6)

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