PEOPLE are still being warned to stay away from Apex Park Lake, in Burnham-on-Sea due to the presence of potentially toxic algae.

Cyanobacteria, or blue-green algae, that can be fatal to wild animals, livestock and pets was discovered in the water last month.

And tests this morning (Saturday) show it is still present.

A Sedgemoor District Council spokeswoman said: "Samples taken this morning from the south east corner and the slipway show that blue-green algae is still present.

"It's unlikely to subside for a few weeks unless there is heavy rain or lots of cloudy days.

"Signs will therefore need to remain in place."

Blue-green algae is a natural phenomenon caused by heat and therefore cannot be removed.

What is blue-green algae?

Algae occur naturally in inland waters such as rivers, streams and lakes. When conditions are ideal for growth (i.e. a period of hot weather) an algal bloom can occur. During a bloom, the water becomes less clear and may look green, blue-green or greenish-brown. Scums can form during calm weather when several bloom forming species rise to the surface. This can look like paint, mousse or small clumps.

Cyanobacteria or ‘blue-green algae’, a type of blooming algae, can produce toxins. These toxins can kill wild animals, livestock and pets. They can also harm people, producing rashes after skin contact and illnesses if swallowed.

Algal blooms block sunlight from reaching other plants in the water. They also use up oxygen in the water at night which can suffocate fish and other creatures. Oxygen is also used up when the bloom decays.

The blooms usually occur in the summer but there are no quick or easy remedies for the control of blue-green algae once they appear in a lake or pond.

Not all blue-green algae blooms and scums are toxic but it is not possible to tell from appearance and so it’s best to assume they are harmful and take the following precautions:

  • Do not swim in the water.
  • Do not let dogs in the water or let them drink it.
  • Do not swallow the water.
  • Avoid contact with the algae.
  • Do not eat fish caught from the water.
  • Observe and abide by any warning notices positioned around the water.