CONCLUSIONS 
Components from 
Anodes detected 
in North Sea 
The data shows that the concentra- 
tions of the selected elements both in 
water and sediment are predominantly 
within the range of the known variability 
in the study areas. For the first time, 
data could be generated for the tracers 
indium and gallium in the German Bight. 
Due to the static conditions and south- 
north currents during certain weather 
situations, elevated concentrations for 
the elements aluminium, zinc, indium 
and gallium could be observed. Locally 
elevated concentrations were also found 
in the sediment, especially for lead. 
The high dynamics in the area and the 
associated large-scale water exchange 
contribute to the measured concentra- 
tions that were mostly within the range 
of the known variability for the German 
Bight. Based on this data and the pre- 
vailing dilution and distribution pro- 
Cesses, there are currently no direct 
affects discernible due to the use of 
sacrificial anodes. 
SCANNEN 
O6 ENVIFONIMENISN 
to sacrificial anodes are*impr ar 
Cathodie protection SSH 
‚w 
The project results are made available 
to the expert network from the Federal 
Ministry for Digital and Transport 
(BMDV), where they are contributing 
to the thematic field "Environment and 
Transport" and the main topic "Building 
and Construction Emissions". 
Further investigations could contribute 
to better assess possible medium to 
long-term effects of such chemical 
emissions on the marine environment. 
Through long-term monitoring of the 
critical elements, possible accumula- 
tions from the corrosion protection of 
offshore installations could be obser- 
ved and evaluated in the future. 
In the context of the follow-up project 
OffChEm Il, the research on chemical 
emissions from offshore installations 
is continued. Here the focus is now on 
the Baltic Sea. 
In addition, the Federal Maritime and 
Hydrographic Agency supports the de- 
velopment and use of environmentally 
friendly techniques. Impressed current 
cathodic protection systems should 
be used more frequently in the future, 
as they are associated with very low 
chemical emissions into the marine 
environment. 
However, due to the continuous opera- 
tion and development of offshore wind 
anergy, the chemical emissions from cor- 
rosion protection will further increase.