MEDIA RELEASE 23 January 2009

HEALTH WARNING: Algal bloom persists in Eastern Bay of Plenty rivers

Eastern Bay residents are reminded to take care when using local rivers, following a water inspection showing signs of potentially toxic algae.

The latest check by Environment Bay of Plenty indicates that Waimana River continues to be the worst affected area with the Whakatane and upper Rangitaiki rivers showing early signs of the algae.

“Contact with the water in these areas may be hazardous and could result in health problems,” says Medical Officer of Health Dr Phil Shoemack. “Cyanobacteria toxins can trigger asthma and hayfever attacks, skin rashes, tummy upsets and even neurological effects such as tingling round the mouth, headaches, general breathing difficulties and visual problems.”

A health warning has been in place for the Waimana River since mid December and areas particularly affected are downstream of the Waimana township near Wardlaw and Kirkbride roads. The Whakatane River around the Pekatahi Bridge and some upper reaches of the Rangitaiki River near Murupara are also affected to a lesser degree at this stage.

A similar problem could occur in other rivers at any time, so it is always safest to check the water before you get in.

“Avoid diving in if black and brown algal mats are found covering large areas of the river bed. People should also avoid swimming in or drinking river water that has a strange musty smell. If in doubt, go somewhere else.” says Dr Shoemack.

He advises anyone drawing their drinking water supply from these rivers to get the water tested for the presence of algal toxins.

“Highest risk areas tend to be shallow river margins where young children and dogs are most likely to come in contact with it. Last summer a similar problem occurred and a dog died following exposure to the algae, so it’s important to take notice of health warnings,” says Dr Shoemack.

For video clips and images of toxic algae mats follow the link http://www.envbop.govt.nz/Water/BathingStatus/-Rivers-Health-Warning.asp.

For up to date information on recreational water quality go to http://www.envbop.govt.nz/Water/BathingStatus/Swimming-water-quality-.asp.

ENDS

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