Dublin City Council has warned bathers not to swim at Sandymount strand because of elevated levels of bacteria in the water. The cause of the high levels was not known last night.
The council has issued a prohibition of bathing notice on a temporary basis.
Water samples taken at Sandymount strand and Half Moon Swimming Club at the South Wall nearby on Monday indicated the water quality did not comply with the minimum standards set down for bathing waters. The results from further samples taken today will be available on Friday.
The council said bathing water quality could be temporarily affected by factors such as weather and tidal conditions, faecal matter from dogs and birds and temporary overflows from drains.
The council has been liaising with the Health Service Executive and the Environmental Protection Agency.
Updates will be posted at dublincity.ie and on the council’s Twitter feed and Facebook page.