Toxic algae in Selwyn River

ABBIE NAPIER
Last updated 11:33 15/02/2014

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Mid Canterbury Selwyn

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Toxic algae has again been found in Canterbury's Selwyn River and authorities are warning swimmers and animals to steer clear. 

The blue-green algae could cause rashes, nausea and numbness and was the same found at Whitecliffs Domain earlier in the summer. 

On Friday Canterbury District Health Board warned people and animals to stay out of the river at Glentunnel downstream from the swimming hole. 

People showing symptoms should see a doctor and sick animals in contact with the river or algae should be taken to a vet. 

Medical officer of health Dr Alistair Humphrey said even boiling the river water would not remove the toxin and it should not be consumed. 

The algae looks like dark brown to black moss and has a musty smell.

Warnings were also issued for algae found in the Ashley River at the Rangiora-Loburn Bridge. 

Environment Canterbury was monitoring the sites.

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- © Fairfax NZ News

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