Harmful material has been found in water samples taken across Scotland last year, officials have said.
The Scottish Environment Protection Agency (SEPA) said it detected polyfluoroalkyl substances (PFAS) at 89% of surface water sites and at 57% of its groundwater sites.
PFAS have been linked to certain types of cancer and are dubbed “forever chemicals” by Sepa, given some of them can take thousands of years to break down naturally.
SEPA warned that no samples retrieved were up to environmental standards.
The data covers samples taken in 2025 from 97 surface water sites and 37 groundwater sites.
Sepa has been monitoring such substances since 2009, and said PFAS concentrations in Scotland are generally lower than those detected in England.
The researchers concluded in the 2025 PFAS Water Quality Monitoring Report that further monitoring should continue this year, and that their monitoring network may potentially have to be expanded.
Professor Paul Dale, SEPA chief regulator, said: “PFAS are being detected more widely around the world and, given how extensively they have been used for decades, their presence in Scotland’s water environment is not unexpected.
READ MORE: STV
