Monitoring of beaches on the Scottish side of the Solway Firth has discovered no radioactive particles.
The Solway Firth tests found no particles from Sellafield
Checks were carried out at sites at Powfoot, Southerness and Kirkcudbright in Dumfries and Galloway.
A Scottish Environment Protection Agency (Sepa) spokesman confirmed no contaminated items had been found.
The tests followed the discovery of radioactive particles from the Sellafield nuclear plant on beaches in North Cumbria.
Sepa was alerted by its English counterpart about an increase in radioactive particles south of the border.
A total of 230 contaminated items have been identified on Cumbrian beaches so far - mainly tiny particles of sand or stone.
Sepa commissioned a programme of monitoring beaches on the Scottish coast to see if any Sellafield contamination had spread.
It has confirmed that specialist monitoring had detected no such particles.
"As no radioactive particles have been detected, no further monitoring along that stretch of Solway coastline is considered necessary at this time," said Sepa spokesman Ian Robertson.
"This will be kept under review and will be based on the results of ongoing monitoring that Sellafield Limited will be carrying out on west Cumbrian beaches throughout 2008."
Monitoring of the Scottish beaches started on 12 December under a programme agreed by Sepa, the Environment Agency, Sellafield Ltd and the Nuclear Decommissioning Authority.