Warning signs have been erected at North Dock, Llanelli, warning of blue-green algae.
Carmarthenshire County Council is warning members of the public to avoid coming into contact with the water while signs are in place warning of the possibility of contamination through natural causes.
The algae may cause illness in both humans and animals, so members of the public are advised not to swim in the water; swallow water; avoid contact with the algae; not to allow pets to come into contact with the water and to observe and abide by notices positioned around the dock.
Llanelli Sprint Triathlon is scheduled to take place at the Dock on May 13, officers are keeping organisers updated.
Natural Resources Wales confirmed the algae presence on Thursday afternoon, following analysis of water samples from the Dock. NRW will continue to monitor the situation until the all clear is given. The all clear will be given when two consecutive negative tests are recorded.
County executive board member for environment, public health, Cllr Philip Hughes said: “The build-up of blue green algae is a natural occurrence which happens from time to time. We would urge people to abide by the warning we have issued as public safety is our main priority. We will continue to monitor the situation and keep members of the public updated.”
Public Health Wales advises the algae can produce toxins which can cause skin rashes, nausea, vomiting, stomach pains, fever and headache if swallowed.
If you have any health concerns, please contact your GP or NHS Direct Wales on 111.
- To report any further signs of blue green algae call Natural Resources Wales 24 hour hotline on 0300 065 3000