November 4th, 2025

Greenpeace

The current maximum allowable value for nitrate in drinking water is 11.3 mg/L, criticised as outdated.
Greenpeace
1 year ago

Greenpeace raises alarm over high nitrate levels in Canterbury's drinking water

Greenpeace Aotearoa has formally addressed Te Whatu Ora and other stakeholders with a pressing alert on the high levels of nitrate in Canterbury's...

The majority of New Zealanders have access to water with nitrate levels below 1 mg/L. However, around 800,000 people, mostly in rural areas, are exposed to potentially hazardous nitrate levels above 1 mg/L.
Greenpeace
2 years ago

Elevated nitrate levels in Southland's water raise concerns for public health

Greenpeace Aotearoa's recent free nitrate water testing in Southland has discovered high contamination levels in Gore and Lumsden's public water supplies, as well as...

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