Blue-green algae bloom added to Thetis, remains on Elk and Beaver lakes

Blue-green algae bloom added to Thetis, remains on Elk and Beaver lakes
An undated file photo of the beach at Thetis Lake.

There is now a blue-green algae bloom warning at Thetis Lake in addition to the one at Elk and Beaver Lakes, according to the Capital Regional District.

The CRD and Island Health has added the blue-green algae bloom advisory to Thetis Lake on Monday afternoon.

The algae can produce cyanotoxins. People visiting the lakes are advised to keep animals on leash to prevent them from drinking or swimming in the water and to avoid swimming in the lake.

“Ingesting water containing these cyanotoxins may cause a range of symptoms, including headaches and abdominal pain in humans, and can lead to lethal liver damage in dogs,” the CRD says in a notice on its website.

The algae can produce a blue-green sheen on the water, but it isn’t always easy to see and toxins can be present even if the sheen is not visible.

READ PREVIOUS: Blue-green algae alert issued for Elk and Beaver lakes

This advisory comes as Vancouver Island is under a heat warning, with temperatures expected to be in the low 30s.

The heat advisory is expected to last until the end of the day on Tuesday. Heading to the lake is a common tactic to cool off, but options like other lakes, shaded areas, splash pads, misting stations or air-conditioned buildings remain a good option.

RELATED: Heat warnings remain in effect for Island, B.C.

Laura BroughamLaura Brougham

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