Stay out of the water: Toxic algae confirmed in Hamilton Harbour

Public Health officials have confirmed toxic blue-green algae has infested parts of Hamilton harbour and are warning residents to stay out of the water.

• Warning that worst-ever algae bloom in Hamilton Harbour could happen annually

• Flow from city sewer overflow tank was contaminating Chedoke Creek, Cootes Paradise

Cyanobacteria, a distinct greenish sludge, has been spotted at the Bayfront Park Boar Launch, Pier 4 Park beach, Harbour West Marina and throughout the marinas on Macassa Bay, according to a city press release.

Health effects of toxic algae

The algae can cause several health risks, especially if the water is swallowed.

Skin contact with contaminated water can cause irritation or itching, while exposure to the toxins can cause headaches, fever, diarrhoea, nausea, vomiting and rashes.

• What you should know about toxic blue-green algae blooms

If someone who has touched or swallowed the water starts to suffer any of the possible health effects described above they're advised to contact their family doctor or head to a walk-in clinic.

Anyone who comes in contact with the water, even while launching a boat or taking it out of the water with a trailer, should wash themselves off with clean water as soon as possible.

People are also reminded to keep their pets out of the water.