Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search


Zinc targeted by ARC as levels on rise in harbours

Zinc targeted by ARC as levels on rise in harbours

29 July 2005

Reducing zinc levels in Auckland harbours has been identified as a stormwater management priority by the Auckland Regional Council.

The ARC Stormwater Action team, set up in February to implement the Regional Stormwater Action Plan, has defined zinc, copper, sediment and water quantity as the biggest threat to aquatic life in Auckland’s streams, estuaries and harbours.

The Stormwater Action Plan was developed by the ARC to address increased pollution of Auckland’s waterways as the region grows.

SWA team leader Earl Shaver says zinc is a high priority contaminant on which to take action, because zinc levels in the harbour are increasing so rapidly.

“Many animals that live on the ocean floor cannot survive if zinc levels in sediment are too high,” Mr Shaver says. “Once animals such as cockles and pipis living on the sea bed die, a domino reaction occurs right up the food chain as fish like snapper and flounder run out of food to eat.”

Studies showed that the main source of zinc in Auckland’s waterways is the stormwater run-off from unpainted, galvanised roofs, particularly industrial roofs due to their size.

“The short-term solution to zinc run-off from roofs is to paint the roofs,” Shaver says. “We are going to be working with industry to get roofs painted, but ultimately we want to see zinc taken out of roofing materials altogether – if we can achieve this, then we expect to have zinc-free roofs in the Auckland region within the next 50 years.”

ARC Environmental Management Committee Chair Cr Dianne Glenn says all the signs point towards Auckland’s harbours reaching crisis point if action is not taken to reduce contaminants from getting into waterways.

“Imagine a future with no snapper, flounder and shellfish in the Waitemata and Manukau harbours,” Cr Glenn says. “This could be a reality if we don’t take responsibility for our actions now, by making the changes needed to protect the health of our iconic harbours for future generations.”


© Scoop Media

Parliament Headlines | Politics Headlines | Regional Headlines


Also, Loan Interest: Productivity Commission On Tertiary Education

Key recommendations include better quality control; making it easier for students to transfer between courses; abolishing University Entrance; enabling tertiary institutions to own and control their assets; making it easier for new providers to enter the system; and facilitating more and faster innovation by tertiary education providers... More>>


Higher Payments: Wellington Regional Council Becomes A Living Wage Employer

Councillor Sue Kedgley said she was delighted that the Wellington Regional Council unanimously adopted her motion to become a Living Wage employer, making it the first regional council in New Zealand to do so. More>>


Scoop Images:
Dame Patsy Reddy Sworn In As Governor-General

This morning Dame Patsy Reddy was sworn in as the New Zealand Realm’s 21st Governor-General. The ceremony began with a pōwhiri to welcome Dame Patsy and her husband Sir David Gascoigne to Parliament. More>>


Ruataniwha: DOC, Hawke's Bay Council Developer Take Supreme Court Appeal

The Department of Conservation and Hawke's Bay Regional Investment Company (HBRIC) are appealing to the Supreme Court over a conservation land swap which the Court of Appeal halted. More>>


With NZ's Marama Davidson: Women’s Flotilla Leaves Sicily – Heading For Gaza

Women representing 13 countries spanning five continents began their journey yesterday on Zaytouna-Oliva to the shores of Gaza, which has been under blockade since 2007. On board are a Nobel Peace Laureate, three parliamentarians, a decorated US diplomat, journalists, an Olympic athlete, and a physician. A list of the women with their background can be found here. More>>

Gordon Campbell: On The Key Style Of Crisis Management

At Monday’s post Cabinet press conference Key was in his finest wide- eyed “Problem? What problem?” mode. No, there wasn’t really a problem that top MPI officials had been at odds with each other over the meaning of the fisheries policy and how that policy should be pursued... More>>


Mt Roskill: Greens Will Not Stand In Likely Post-Goff By-Election

“The Green Party’s priority is changing the Government in 2017, and as part of that we’ve decided that we won’t stand a candidate in the probable Mt Roskill by-election... This decision shows the Memorandum of Understanding between Labour and the Green Party is working." More>>


Get More From Scoop



Search Scoop  
Powered by Vodafone
NZ independent news