Arsenic risks increased by compost and fertiliser

A study by environmental scientists of a contaminated former industrial site has called into question the wisdom of applying compost and fertilisers to brownfield land.

Amending contaminated land with compost or phosphates could exacerbate the risks posed by arsenic contamination, according to a study of soil processes at a former industrial site at Merton Bank in St Helens, Merseyside.1 With biodegradable wastes being increasingly diverted from landfill and used on brownfield sites, the findings have important implications for land remediation practices.

A team led by William Hartley from th

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