3 months Ago
Steel slag, a by-product of steelmaking often used as a cheap material in roads and dykes, was applied to 11 kilometers of forest trails between 2018 and 2023. Recent drilling along the paths revealed contamination with chromium and vanadium, heavy metals that can be released into the environment when exposed to rainwater or groundwater.
National Ban and Local Calls for Cleanup
In July, the Dutch government announced a one-year ban on using steel slag in areas where people can come into contact with it, including playgrounds, cycling paths, and footpaths. Junior environment minister Thierry Aartsen said the pause would allow further research into health risks and possible alternatives.
The public health institute RIVM had already warned in 2023 that steel slag can release hazardous substances, prompting Amsterdam to stop using it in the Bos. Offenbach insists the material must be cleaned up for the sake of “future generations.”
He has submitted written questions to Amstelveen’s mayor and executive, urging for a clear plan, financial reserves, and transparent communication with residents. Soil experts say removing the slag may be the best option, but no clear method or disposal solution currently exists.
Wider Environmental Issue
The problem extends beyond Amstelveen, with steel slag linked to environmental concerns in other regions, including Zeeland, where it has been possibly connected to lobster deaths. In the Netherlands, Tata Steel is the main producer.
The company acknowledged cases where steel slag was misused and caused damage, adding that it is working with research institutions on solutions.
Amstelveen officials confirmed they are preparing a response to Offenbach’s questions and take the matter “very seriously.” Offenbach stressed that he does not wish to cause panic but wants concrete action.
