A health warning has been lifted today for Okawa Bay at the western end of Lake Rotoiti. The health warning is based on water test results and visual observations provided by the Bay of Plenty Regional Council which indicate the algal bloom in this area of the lake has cleared.

The warning for Lake Rotoiti at the Okere Arm remains in place.

“People should avoid any activity which results in contact with the water in the Okere Arm of Lake Rotoiti,” says Dr Lynne Lane, Te Whatu Ora Medical Officer of Health for Toi Te Ora Public Health.

Contact with water affected by blooms of blue-green algae can cause asthma and hayfever attacks in some individuals. Contact with the blue-green algae can also cause skin rashes, stomach upsets, and in some cases neurological effects such as tingling around the mouth, headaches, breathing difficulties and visual problems.

Signage is erected at sites along the shore of the bay advising potential lake users about algal blooms.

As we head into summer Dr Lane advises the public to keep an eye out for signs of algal blooms if using lakes in our region. “Algal blooms can develop rapidly and unpredictably and can sometimes produce toxins that are harmful for people as well as animals. If the water looks discoloured, has an unusual smell, or has green or brown particles floating in it then it is best to avoid contact with it.”

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