The Metropolitan and South Coast Regional Algal Coordinating Committee (RACC) has issued a red level warning (high alert) for blue green algae in Harrington Park Lake.
A red level warning indicates that waters are unsuitable for recreational use or primary contact by water users and may also pose a threat to pets.
Warning signs are positioned at the lake and will remain in place while high levels of blue green algae are present.
The species of blue green algae identified are potentially toxic and may cause gastroenteritis in humans if consumed and skin and eye irritations after contact.
Boiling the water does not remove algal toxins.
Animals can become very sick as a result of drinking water affected by blue green algae.
Dogs are particularly susceptible as they also ingest algae by licking their coats.
Blue green algae usually appear as green paint-like scums on the water, near the edges, or as greenish clumps throughout the water.
It makes the water appear dirty, green or discoloured and generally has a strong musty or earthy odour.
Any fish caught should be cleaned and washed thoroughly in uncontaminated water and any internal organs disposed of before consumption.
Blue green algae occur naturally and can reproduce quickly in favourable conditions where there is still or slow-flowing water, abundant sunlight and sufficient levels of nutrients.
It is not possible to predict how long the algae will remain at high levels.
Regular monitoring will continue and the alert will be lifted as soon as the high levels of algae dissipate.
People who believe they may have been affected by blue green algae are advised to seek medical advice.
Information updates about blue green algae blooms and red level warning areas can be obtained from the Algal Information Hotline on 1800 999 457 or online here.
