An oil spill originating from the port of Antwerp has spread into protected natural areas in the Dutch province of Zeeland, with conservation organisations warning of a potential environmental disaster and cleanup operations expected to last several weeks. The incident began late on Thursday night last week when the container ship MSC Denmark VI began leaking heavy fuel oil during a refuelling operation at the Deurganckdok, a major dock in the Belgian port city of Antwerp. The oil spread across an area of several kilometres, temporarily closing the port to shipping traffic.
Initial assessments suggested the damage to Zeeland — the Dutch coastal province just north of Antwerp across the Westerschelde estuary — would be limited, but over the weekend oil traces were discovered in several ecologically significant areas. These include Het Verdronken Land van Saeftinghe, a vast intertidal nature reserve sometimes called the "Drowned Land of Saeftinghe," the Hedwigepolder, and areas north of the Westerschelde such as the Schor van Waarde and Bathse Schor. Volunteers from the Dutch conservation organisation Staatsbosbeheer have recorded oil slicks stretching over a 10-kilometre length, with individual patches of 50 to 100 metres. "We are finding thick clumps of black oil, but also diluted oil floating on the surface. The black oil you can scoop away, but the thin oil is very difficult to remove," said Marcel van Dun of Staatsbosbeheer. Oil-covered birds have also been spotted in the affected zones.
Cleanup operations are set to begin on Tuesday, with volunteers and contractors first assessing where to start. Dimitri Barbe of Het Zeeuwse Landschap, the regional nature conservation body, described the challenge ahead: "It is a very difficult area of mud and silt. We have to carefully monitor the tides and plan our operations around them." A further complication is the ongoing breeding season, which means teams must avoid disturbing nesting birds while they work. The pollution also poses a longer-term threat to the food chain, as smaller organisms absorb the oil and are in turn consumed by larger animals.
On the legal front, the Ghent commercial court has appointed an independent expert from the Nautical Commission to assess the full extent of the damage, following a request by MSC's shipping company. The expert's findings will help determine liability. Meanwhile, disruption to shipping in and around Antwerp continues.
Why this matters: the Zeeuwse natural areas affected are considered among Europe's most ecologically valuable tidal wetlands, providing critical habitat for migratory and breeding birds as well as complex marine ecosystems. The incident raises urgent questions about refuelling safety standards in one of Europe's busiest ports, and about the speed and effectiveness of emergency response when industrial accidents threaten protected natural environments.