Local waterways affected by blue-green algae

COMMUNITY members are advised to avoid contact with waterholes in Drysdale and Newtown after high levels of blue-green algae were detected during routine monitoring.

The waterhole at Zillah Crawcour Park in Newtown and the large lake at McLeods Waterhole in Drysdale have been affected.

Blue-green algae is a type of bacteria that is present in most waterways and under the right conditions, including warm weather, it can grow rapidly and form blooms.

These blooms often have a pungent smell, may vary in colour from dark green to yellowish brown and turn surrounding water green.

In large quantities, blue-green algae can produce toxins that are harmful to both humans and animals and contact with affected waterways may cause skin irritation, hay fever-like symptoms and mild respiratory effects.

If ingested, these toxins may cause gastroenteritis symptoms such as vomiting, diarrhoea, fever and headaches.

The City of Greater Geelong will install warning signs at the affected waterways in the coming days.

“Blue-green algae is a naturally occurring organism and blooms can persist for several weeks or longer depending on environmental factors including nutrients, weather, flow conditions and sunlight,” acting chief executive Tennille Bradley said.

“We advise community members and their pets to avoid contact with the contaminated water and should not eat fish from affected waterways.

“If skin contact should accidentally occur, wash immediately in fresh water and seek medical help if experiencing a reaction.”

Pets who come into contact with blooms should also be washed thoroughly with fresh water to ensure they do not ingest the algae while grooming.

For any enquiries about blue-green algae, phone the City on 5272 5272.