An environmental group is taking the British government to court over how sewage sludge is regulated. They're arguing that the government has abandoned safety testing and has fallen out of step with European rules on harmful chemicals.

The Court Case

Fighting Dirty, an environmental organisation, is suing the Environment Agency and the government. In March 2024, the High Court agreed to hear their case.

The row is about sewage sludge — the solid leftover from treating wastewater. In the UK, this sludge is allowed to be spread on farmland as fertiliser. Fighting Dirty says it should be tested for PFAS and microplastics before farmers use it. PFAS are chemicals that never break down in nature and can build up in your body over time. They've been linked to health problems including cancer and thyroid disease.

The Environment Agency had promised to test sludge for these chemicals but then dropped that promise. Fighting Dirty says this decision was illegal.

A Separate Rule Problem

At the same time, a quieter change is happening with chemical rules. When Britain left the EU, rules started to drift apart. The EU now has special labels for chemicals that mess with hormones. Britain doesn't have these labels yet, according to environmental researchers FIDRA.

This matters because chemicals with EU hazard labels face tougher rules — stricter testing, more restrictions, clearer warnings on packaging. The UK version faces weaker oversight. This is a problem for UK businesses trading with Europe, and it may also mean weaker protections against contamination at home.

In February 2026, the government proposed new rules to catch up with the EU system. But the House of Lords objected formally, which is unusual and signals serious concern. The government is also asking industry for feedback on whether Britain should match the EU's approach, but people disagree on whether or how quickly that should happen.

Why This Matters

Britain produces millions of tonnes of sewage sludge each year and spreads most of it on farms. If it's not tested, no one knows how much contamination is going into the soil and food. Fighting Dirty argues that the government's own previous decision to test showed officials knew it was necessary — so backing away from that decision doesn't make sense.

The two issues — the sludge testing question and the chemical rules — both point to the same problem: how well does post-Brexit Britain actually protect farmland from persistent pollution?

A court ruling is coming, and Parliament may force the government to change its chemicals rules. But neither will happen quickly.