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Health warning lifted for Pegasus Lake
April 26, 2017
Health warning lifted for Pegasus Lake
The Community and Public Health division of the Canterbury District Health Board has lifted its algal bloom health warning issued at Pegasus Lake on 14 February 2017.
Recent water testing at Pegasus has shown the quantity of potentially toxic blue-green algae (planktonic cyanobacteria) in the lake has decreased and concentrations are now below levels of concern to public health.
Dr Ramon Pink, Canterbury Medical Officer of Health, says as we move into winter there is a decreased chance of the toxic algae returning until the warmer months.
“People are reminded to be aware of the signs of the presence of cyanobacteria in the lake, as the monitoring frequency has now reduced from weekly to monthly,” Dr Pink says.
Facts about cyanobacteria:
• The algae occur naturally but can increase rapidly during warmer months.
• If the water is cloudy, discoloured, or has small globules suspended in it, avoid all contact.
• Not all cyanobacterial blooms are visible to the naked eye and toxins can persist after the blooms disappear.
• Cyanobacterial concentrations can change quickly with changing environmental conditions (e.g. wind). If a health warning is in place avoid contact with the water.
• If a warning is in place, people and animals should not drink the water from the lake at any time, even boiled water.
• Exposure to an algal bloom can cause skin rashes, nausea, stomach cramps, tingling and numbness around the mouth and fingertips. If you experience any of these symptoms visit your doctor immediately and please let your doctor know if you have had contact with lake water when there is a health warning in place.
For further information visit https://www.ecan.govt.nz/your-region/your-environment/water/swimming-water-quality/ or contact Community and Public Health on (03) 364 1777.
ends
Canterbury DHB
CDHB
Canterbury District Health Board (CDHB) is a Christchurch, New Zealand based hospital and healthcare provider for the
Canterbury region of New Zealand. Our region extends from Kekerengu in the North, to Rangitata in the South and Arthurs Pass in the West and comprises the six Territorial Local Authorities of Kaikoura, Hurunui, Waimakariri, Christchurch City, Selwyn and Ashburton.
We collaborate with other health and disability organisations, stakeholders and our community to decide what health and disability services are needed and how to best use the funding we receive from Government to improve, promote and protect the health, wellbeing and independence of our population.
At the Canterbury DHB, our vision is to improve the health and wellbeing of people living in Canterbury.
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