Environ Sci Pollut Res 
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Fig. 6 Median distribution of the 
most prominent micropollutants 
along longitudinal trends from 
2005, 2007-2009 a Baltic Sea b 
close-up western Baltic Sea. Data: 
see Tab. S9 
10°0'0"E 12°0'0"E 14°0'0"E 
I 
16°0'0"E 18°0'0"E 20°0'0"E 22°0'0"E 24°0'l 
J I I I I I I I I I I I I 1—1 I I ! I I I I V..L) J I 
0"E 
10°0'0"E 12°0'0"E 14°0'0"E 16°0'0"E 18°0'0"E 20WE 22°0'0"E 24 o 0'0"E 
at station PB1-3 (general median: 0.5 ng/L). At this station, 
the concentration of ATR is also increased (5.2 ng/L, Fig. 6b) 
in comparison to the other stations in the Baltic Sea, where 
ATR was detected at homogeneous concentrations with low 
variation (median 3.2 ng/L). The concentrations of DIU and 
2,4-D are marginally increased in the western part (median 1.5 
ng/L, 2.8 ng/L, respectively) in comparison with the eastern 
part (median 0.9 ng/L, 2.0 ng/L, respectively). A strong 
increase for DIU was detected at station KB2 (20.2 ng/ 
L) and KB1 (7.0 ng/L) in the western Baltic Sea (Fig. 
6b, Tab. S9), which are close to the outlet of the Kiel 
Canal. The highest concentrations of 2,4-D were detect 
ed in the western Baltic Sea at station TF121 (20.6 ng/ 
L) and TF109 (13.0 ng/L).