Silent leaks: Century-old shipwrecks are leaking toxic chemicals into the North Sea

The German submarine UC-30, sunk off Denmark in 1917, is leaking TNT-related pollutants into the North Sea.

Researchers detected contamination in seawater, sediment, and marine life around the wreck.

As corrosion advances, thousands of wartime wrecks in Danish waters could expose similar explosive pollution risks.

The toxins may accumulate through the food chain and affect marine ecosystems, fisheries, and human health, raising urgency for risk assessment and cleanup.