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

 


Hawke’s Bay Air Quality Science Informs WHO Review

Media Release

8 May 2014

Hawke’s Bay Air Quality Science Informs WHO Review

Hawke’s Bay is doing as well as, if not better than, many other towns and cities in New Zealand in terms of air quality, says Hawke’s Bay Regional Council scientists in response to a report from the World Health Organisation.

The United Nations public health arm has released a report of outdoor air quality in 1600 cities across 91 countries. Subsequent news reports have stated that many smaller centres have worse air quality than metropolitan Auckland.

The World Health Organisation (WHO) used figures supplied by the Ministry for the Environment based on data supplied by regional councils. These figures are the annual mean concentrations of fine particulate matter, which are particles smaller than 10 micrometres per cubic metre of air (ie PM10).

HBRC air scientist Dr Kathleen Kozyniak says that annual mean PM10 concentrations for both Napier and Hastings are lower than the MfE’s Ambient Air Quality Guideline value of 20 micrograms per cubic metre. They rank similarly to Auckland at 14 and 15 micrograms per cubic metre respectively.

Dr Kozyniak says that HBRC was advised last year that WHO would be collecting data, and councils had the opportunity to verify their monitoring information.

“On the whole there has been a pleasing decrease in PM10 concentrations in our two cities since monitoring began in 2005/6,” says Dr Kozyniak.

“From 2010 to 2012 we saw Hastings concentrations drop from 17 to 15 micrograms per cubic metre and Napier’s from 15 to 14 micrograms per cubic metre. Having said that, there was a blip upward in concentrations last year in both cities for a number of possible reasons, such as the light winds we had last winter. I’m aware there was a similar pattern in other NZ centres’ air quality too.”

Dr Kozyniak says that weather plays a part in air quality.

“Hawke’s Bay’s winters may be blessed with days of fine blue skies and calm conditions in winter but, although they cheer the heart, these are conditions which trap smoke close to the ground. Some of the centres listed in the news report have windier and wetter conditions which help to clear the air.”

Hawke’s Bay Regional Council has conducted emissions inventories (2005 and 2010, another is due next year) which indicate that domestic fire emissions contribute more than 90% of the wintertime concentrations of PM10.

HBRC’s Heatsmart Programme Manager, Mark Heaney, says that council’s Heatsmart scheme for upgrading older model wood burners to more efficient modern burners or heat pumps means that people can expect to see PM10 concentrations progressively decrease.

“The quality of the air in Napier and Hastings during winter still needs to improve and we all have to work towards that. It has been encouraging to advise a lot of people over the past few months on the choices they can make for home heating and how to take advantage of the Council’s funding assistance package.”

Below are graphs for Napier and Hastings average winter only concentrations, as compared to the annual average quoted by WHO. These graphs are adjusted to take account of the variation in weather between winters. Overall the trend is downward, but with a blip last year.

Napier

Hastings

Note – micrograms per cubic metre are shown as µgm-3

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Patience: Drive Safe

Be patient before passing is the AA's message for drivers this Labour weekend.

"People taking crazy risks to get past other vehicles is one of the most dangerous things on the road,” says AA spokesperson Dylan Thomsen.

“The weather is looking good for the long weekend so the roads will be busy. Unfortunately, that also increases the chances of people getting frustrated and trying a risky passing manoeuvre. When they get past, there will probably be more traffic up ahead anyway so it won’t get people there faster.” More>>

 
 

Parliament Today:

Employment Relations Bill: Govt Strains To Get Tea Break Law Through

The Government has been left with egg on its face - failing to get its much-vaunted, but hugely unpopular, meal break law passed in the first week of its new term, Labour spokesperson on Labour Issues Andrew Little says. More>>

ALSO:

Guns: Police Association Call To Arm Police Full Time

"The new minister gave his view, that Police do not need to be armed, while standing on the forecourt of parliament. The dark irony was that the interview followed immediately after breaking news of a gunman running amok in the Canadian parliament in Ottawa..." More>>

ALSO:

Gordon Campbell: On The Tokenism Of New Zealand's Role Against Islamic State

Our contribution against IS will be to send SAS forces to train the Iraqis? That’s like offering trainers to General Custer just as the 7th cavalry reached the Little Big Horn. More>>

ALSO:

Scoop Business: Shell And Todd Caught Drilling Without Approval

Multi-national oil company Shell’s New Zealand arm and local energy giant Todd Energy have breached the new law governing New Zealand’s Exclusive Economic Zone, the Environmental Protection Authority says in an Oct. 10 document released by the Green Party. More>>

ALSO:

Gordon Campbell: On Pharmac, Gough Whitlam And Sleater-Kinney

We’re not at the outset of these negotiations. The outset was six years ago, and negotiators were hoping to have some sort of ‘framework’ deal finished in time for the APEC meeting in a few weeks’ time. These ‘extreme’ positions are what we’ve reached near the intended end of the negotiations… More>>

ALSO:

PM Of Many Hats: Questions, No Answers On Whale Oil

Dr RUSSEL NORMAN (Co-Leader – Green) to the Prime Minister: How many times since November 2008 has he spoken with blogger Cameron Slater on the phone and how many times, if any, has he texted him?
Rt Hon JOHN KEY (Prime Minister): None in my capacity as Prime Minister. More>>

ALSO:

Aussie Investigation Dropped: Call On Minister McCully To Pursue The Case Of Balibo Five

West Papua Action is deeply concerned at the lack of any clear outcome from the Australian Federal Police inquiry into the 1975 deaths of the ‘Balibo Five’ including NZ journalist Gary Cunningham. More>>

ALSO:

'Feed The Kids' Bill: Metiria Turei To Lead Fight On Feeding Hungry Children

Green Party Co-leader Metiria Turei is urging all political parties to support the Feed the Kids Bill which she inherited today from Mana leader Hone Harawira. More>>

ALSO:

Parliament Today: State Opening Of Parliament

The House sat at 10.30am on Tuesday before MPs were summoned to hear the Speech from the Throne in the Legislative Council Chamber. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news