The Community and Public Health division of the Canterbury District Health Board has lifted its algal bloom health warning issued for State Highway One (SH1) on the Hurunui River / Rakahuri. This was issued on the 26 February 2014.
Recent surveys at SH1 on the Hurunui River / Rakahuri have shown the cover of potentially toxic blue-green algal mats (benthic cyanobacteria) in the river has decreased and cover is now below the levels that are of concern to public health.
Dr Alistair Humphrey, Canterbury Medical Officer of Health, says Environment Canterbury's sampling for the summer season has now stopped and therefore the public will need to be aware of the potential for algal blooms themselves.
"The growth of algal mats is, however, less likely because of the cooler weather and the seasonal nature of the blooms," Dr Alistair Humphrey says.
"Environment Canterbury will resume sampling again next summer when there is an increased likelihood of cyanobacterial growth." Facts about cyanobacteria:
For further information visit http://ecan.govt.nz/services/online-services/monitoring/swimming-water-quality/Pages/river-warnings.aspx Or contact Community and Public Health on (03) 364 1777.
Media queries can be directed to Canterbury DHB Media Advisor Amy Milne on (03) 364 4122 or 027 502 7523, or firstname.lastname@example.org
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