Routine monitoring for potentially toxic benthic cyanobacteria is carried out at a number of popular swimming sites throughout Canterbury.
The summer monitoring for potentially toxic benthic cyanobacteria at popular river sites has begun for the 2014/15 season. River users are advised to note that not all popular river sites are monitored for potentially toxic benthic cyanobacteria and should keep vigilant at river sites where black-brown cyanobacteria mats may be growing or forming scums.
The weekly monitoring programme for potentially toxic benthic cyanobacteria such as Phormidium is only carried out over the summer; however potentially toxic benthic cyanobacteria mats may still be present in quantities below levels that are of concern to public health at routinely monitored sites at other times of the year. For more information and what to look out for see below or check out http://ecan.govt.nz/services/online-services/monitoring/swimming-water-quality/Pages/Potentially-Toxic-Cyanobacteria.aspx
Waihao River at Bradshaws Bridge:
Recent monitoring (14/11/14) indicates that the percent river bed cover of potentially toxic benthic cyanobacteria mats is moderate, with mats observed to be detaching and accumulating at the rivers edge. River users are advised to avoid the area, in particular, where mats are accumulating on-shore. River users are advised to avoid the area.
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