News Video | Policy | GPs | Hospitals | Medical | Mental Health | Welfare | Search

 


Health warning for Ashley River/ Rakahuri

Cantabrians should check the status of local waterways for toxic algae (benthic cyanobacteria) this summer, following more health warnings issued for the region today.

The Community and Public Health division of the Canterbury District Health board have issued a health warning for the Ashley River/ Rakahuri at the Rangiora - Loburn Bridge

The warning comes after the latest Environment Canterbury monitoring results show there are increased concentrations of potentially toxic cyanobacteria in these waterways.

Dr Alistair Humphrey, Canterbury Medical Officer of Health, says people and animals should stay out of the river until the health warnings have been lifted.

The cyanobacteria at the Ashley River mostly comprises of Phormidium – a cyanobacteria which forms thick dark brown/black mats on the bed of the river.

“People and animals, particularly dogs, should avoid these waterways. Animals that show signs of illness after coming into contact with river water or Phormidium mats should be taken to a vet immediately.”

Reticulated town water supplies are currently safe but no one should drink the water from the river at any time , Dr Humphrey says.

“Boiling the water does not remove toxins. Symptoms from toxic exposure to the cyanobacteria range from rapid onset of nausea and diarrhoea, to gastroenteritis and other effects such as tingling and numbness around the mouth, fingertips, as well as liver damage,” Dr Humphrey says.

“If you experience any of these symptoms visit your doctor immediately and please let your doctor know if you have had contact with the river water.”

Fish can concentrate toxins and their consumption should be avoided. If fish are eaten, remove the gut and liver and wash in clean water.

Environment Canterbury monitors the river during summer and the public will be advised of any changes in water quality that are of public health significance.

Facts about cyanobacteria:

• It occurs naturally but can increase rapidly during warmer months.

• 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.

• It appears as dark brown/black mats attached to rocks along the riverbed.

• It often has a strong musty smell and algal toxin concentrations can vary over short periods with changing environmental conditions.

• Although high river levels will remove the algal bloom, detached mats can accumulate along the shore and increase the risk of exposure to toxins.

• If a health warning is in place avoid contact with the water.

• Although district or city councils may place warning signs, these may not be seen at the numerous river access points, hence the need for people/ dog-walkers to treat every low-flowing river cautiously.

ENDS

© Scoop Media

 
 
 
 
 
Culture Headlines | Health Headlines | Education Headlines

 

Eddie Izzard: UK Comedy Legend Returns

Hailed as one of the foremost stand up comedians of his generation. Star of stage and screen. Tireless supporter of charity. Runner. Political campaigner. Fashion Icon... February 2015, Eddie Izzard will bring his massive FORCE MAJEURE world tour to New Zealand with tickets going on sale at 10am on Tuesday 28th October. More>>

Festival Starts 28 Oct: Improv Fest Makes Up New Show

For any other festival, finding out less than two weeks from showtime that half the cast of a programmed show can’t make it to New Zealand would be a nightmare. Instead, the New Zealand Improv Festival Director Jennifer O’Sullivan saw an opportunity ... More>>

NZ Music Awards Finalists: Lorde, Sol3 Mio Top 2014 Tuis Charge

Lorde has taken the music world by storm during the past year and she co-leads the 2014 Tui charge with five finalist spots. Joining her is newcomer family opera trio, Sol3 Mio. They are followed closely by Ladi6 and David Dallas, both up for four awards each. More>>

From 'Luther' Creator: Major New Zealand Crime Series For BBC

Libertine Pictures and writer Neil Cross have teamed up with leading international TV producer Carnival Films to develop a major new crime series set in Rotorua. Libertine will develop the contemporary drama series with Carnival, producer of internationally-acclaimed British period drama Downton Abbey, for the BBC. More>>

ALSO:

Family Statement: Death Of Ewen Gilmour

“Ewen was a much loved and cherished member of our family, he was a larger than life character and by his very nature was kind, generous and always giving of his time to those who asked for his help." More>>

ALSO:

Auckland: St. Jerome's Laneway Festival - Line-Up Announced

Traversing seven cities and three countries, the festival has well and truly settled into its home in each state. From the grassy knolls and towering silos at home in Auckland, to the sparkling backdrop of the Maribyrnong... More>>

Scoop Review Of Books: No Longer An Island

Simon Nathan reviews 'Zealandia: Our Continent Revealed': The idea that New Zealand is part of a large submerged continent is not new... There was renewed interest in the extent of offshore New Zealand from the 1970s onwards with the start of offshore drilling for oil and gas, and this was given impetus by a UN agreement which allowed countries to claim an Extended Continental Shelf (ECS). More>>

Art: Simon Denny Recreates Kim Dotcom’s Personal Effects

Who owns what? How has the internet changed our relation to the world? These are two of the many questions Simon Denny raises in the latest exhibition at the Adam Art Gallery, opening on Saturday 4 October. More>>

ALSO:

Get More From Scoop

 
 

LATEST HEADLINES

 
 
 
 
Health
Search Scoop  
 
 
Powered by Vodafone
NZ independent news