RESULTS 
Method, Laboratory Study and Field Study 
e The researchers developed and valida- 
ted reliable methods to analyse trace 
metals in water, sediment and biota 
TEVdIEU CO 
Be ae ee m 
ater and sediment of the Nort ; 
kn yu 
Jiw1lE 
e In the laboratory, they characterised the 
chemical composition of various sacri- 
ficial anodes. This enabled the research- 
ers to identify the most critical com- 
ponents for the environment as well as 
possible tracers for chemical emissions 
from the corrosion protection of offshore 
installations. 
e The team carried out several field stu- 
dies in the North Sea to generate for the 
first time a comprehensive data set on 
the occurrence and distribution of trace 
metals around offshore wind farms 
(in water and in sediment). 
e The measured concentrations of selec- 
ted elements in water and in sediment 
are largely within the normal variability 
of the German Bight (see Table 1 and 2 
in Appendix). 
e Elevated concentrations of aluminium, 
zinc, indium, gallium (in water) and lead 
(in sediment) were sporadically detected. 
TO A ak 
[P2 Aa 
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% 
P3 ME 10.4 RE ME ze KOT 
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