The Community and Public Health division of the Canterbury District Health Board has lifted its algal bloom health warning issued along the Selwyn River/Waikirikiri at Whitecliffs Domain. This warning was issued on 20th February 2017.
Recent cyanobacteria surveying at Selwyn River/Waikirikiri has shown the cover of potentially toxic blue-green algae (benthic cyanobacteria) in the river has decreased and is now below the levels that are of concern to public health.
Dr Alistair Humphrey, Canterbury Medical Officer of Health, says Environment Canterbury's routine monitoring of rivers and lakes in the Canterbury region has been completed for this summer season.
"It will resume again next summer when there is increased likelihood of cyanobacteria growth," Dr Humphrey says.
"The public is however reminded that there are still some rivers and lakes where warnings remain in place due to algal blooms."
These will continue to be monitored and the public advised when the warnings have been lifted.
Facts about cyanobacteria:
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