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Chemical and conventional ammunition in the Baltic Sea

Figure 1: Dumping sites and areas of suspicion concerning dumped ammunition at the German Baltic Sea coast

At the end of World War II it was necessary to find a fast and economical way of disposal for the enormous quantities of no more required conventional and chemical ammunition from German and allied stocks. Usual methods of destruction like detonation, burning or even simple emptying soon emerged as very time-consuming and dangerous. Dumping at sea seemed to be the much more efficient and – concerning the general security – the less problematic solution attempt. Environmental aspects and the issue of protection of the sea were completely ignored at that time.

Details about type and amount of sea dumped conventional and chemical ammunition vary considerably. Trends indicate that the biggest part of conventional ammunition were dumped in the German coastal waters within the 12-nautical miles zone, while the both biggest dumping sites for chemical ammunition are located in the Skagerrak and the Bornholm Basin.

Based on diverse accidents, especially concerning fishery, a discussion about possible risk potentials of dumped ammunition for humans and environment arose mid of the 1980’s in which context first assessments finished that a fairly long-term threat for the marine environment can not be ruled out and that the existing, quite considerable lacks of knowledge – especially concerning ecotoxicology – have to be filled by specific investigations.