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[其它国家] 【新西兰《Stuff》】专家称数十万新西兰人轻率的使用有风险的未经处理的饮用水[解决]

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发表于 2017-12-7 19:36:07 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
本帖最后由 灰色空间 于 2017-12-11 14:29 编辑

Hundreds of thousands Kiwis take 'reckless' risks drinking untreated water, experts say
专家称数十万新西兰人“轻率的”使用有风险的未经处理的饮用水

【日期】2017年12月7日

【连接】https://www.stuff.co.nz/environm ... d-water-experts-say

【备注】42条评论   无需翻墙   无敏感词

【译者】竹笋煮鹤2017

【译文】http://www.ltaaa.com/bbs/thread-464801-1-1.html

【全文】

More than 750,000 Kiwis exposed to potentially unsafe drinking water.

Hundreds of thousands of people in New Zealand drink untreated water, a practice international experts say is "unacceptably risky".

Many of those people live in large cities, and expect the water they drink to be safe. But the inquiry into the Havelock North disaster said they were being given a false sense of security.

While the number of people drinking untreated water is quickly falling, as councils rush to chlorinate in fear of an outbreak similar to Havelock North, some communities are continuing to resist.


Canadian drinking water expert Dr Steve Hrudey at the Water NZ conference in September.

Figures released by the inquiry, based on preliminary data from the Ministry of Health, showed about 600,000 people were provided with untreated drinking water at the time of the Havelock North outbreak.

Many of them were in urban areas, and drew water from sources designated as "secure" under the standards.


The inquiry, however, raised deep concerns about the "secure" grading and how it was being applied. It said the secure standard needed to be abolished urgently, describing it as "arbitrary,""outdated," and "unacceptable".

The Havelock North supply had been deemed secure, for example, when it clearly was not. Since the inquiry began, secure supplies catering to 12,000 people had an E coli transgression.

Canadian drinking water contamination expert Dr Steve Hrudey boiled his drinking water while in the country.


Hundered of thousands of Kiwis could be affected by bad drinking water.

At a Water New Zealand conference in September, he said the hostility some New Zealanders had towards chlorinating water was unfounded.

"The question is, why? If the aversion is based on fear of disinfectant byproducts, then the fear is seriously misguided to the point of being reckless," he said.

Refusing to treat drinking water was a risk that was no longer acceptable, Water New Zealand chief executive John Pfahlert said.

Under the current rules, councils had to do as much as reasonably practicable to meet the standards - which some used as a justification not to do so.

"If they decide for affordability reasons it is not practicable to comply with the standards, they don't have to," he said.

"So they hide behind arguments of affordability or political arguments that the public don't like the taste or whatever to maintain the status quo.

"The fact remains, if you supply untreated water to your community for long enough, eventually something will go wrong. And when it goes wrong, it goes wrong real quick."

Most of the people still drinking untreated water are in Canterbury. Christchurch city's water supply has never been treated, which has long been a source of pride for its residents.

Surrounding communities such as Rangiora, Kaiapoi and parts of Rolleston also have untreated water.

The city's water comes from a deep, confined aquifer, in which the groundwater filters from the Southern Alps over many decades. It is deemed "secure;" however, there have been E coli transgressions, primarily on shallow wells that have since been replaced.

"I do not think the council have ever been complacent about their water supply, even though they don't chlorinate it," said Dr Alistair Humphrey, Canterbury's medical officer of health.

"I accept Christchurch City Council's rationale for not chlorinating – they have invested heavily in monitoring and maintenance of the system and that, in effect, amounts to an extra barrier in protecting the drinking water which is at least the equivalent of chlorination."

The city's officials told the inquiry they opposed mandatory chlorination, and said on Wednesday they believed the city's risk management measures were performing well.

The public as a whole has opposed chlorination when it crossed the council's agenda in the past – city councillor Aaron Keown told Newstalk ZB on Wednesday he would join the public uprising in opposing mandatory chlorination.

"I would join the protests that would be in the streets, and I would support us going to courts against them to fight this."

The Waimakariri District Council, which manages the Rangiora and Kaiapoi supplies, said in a statement it would consult on UV treatment but "previous consultations [on chlorination] have indicated the community is not in favour of this change".

Both Hastings and Napier also have untreated water, which has caused headaches. Napier's supply has had five E coli transgressions since the inquiry began, which its report cited as an example of ongoing complacency.

Permanent chlorination was not widely popular, however: local MP Stuart Nash told Hawke's Bay Today in July the ongoing chlorination was an "absolute travesty."

While some communities resist mandatory chlorination, some have rushed to chlorinate as the risk of untreated water becomes too high.

Lower Hutt, like Christchurch, draws its high quality water from a confined aquifer.

The supply has been treated in recent months, however, following three E coli transgressions in five months, which cost the city millions of dollars. A decision was recently made to permanently chlorinate the water.

A few months ago, the Hurunui District Council in Canterbury surprised its residents by chlorinating the district's water supply en masse, prompting a public outcry.

There had been 88 transgressions since 2012 and several close calls, which made untreated water too risky to continue, the council said.

On Monday, Mosgiel became the latest major township to receive chlorinated water by permanently switching to the Dunedin supply. Some Queenstown-Lakes district communities such as Arrowtown and Luggate will soon have their water chlorinated, also in response to the risk of contamination.

While some communities were opting to chlorinate voluntarily, mandatory chlorination was needed for those that were refusing, John Pfahlert said.

"Our view is the risks we're taking by councils providing untreated water outweighs by any measure the cost implications that may be imposed on communities.

"The preponderance of evidence, as demonstrated by the inquiry, is that treating water is the best practicable outcome you can have in terms of protecting the health of the public.

"That's an evidence based issue, it's got nothing to do with politics."
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发表于 2017-12-9 12:58:02 | 只看该作者
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