Arsenic in the New Zealand environment

In New Zealand, elevated levels of arsenic in soils and waters occur as a result of geothermal activity, exacerbated by geothermal power exploitation, and the past and present use of...

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Phytostabilization of gold mine tailings from New Zealand. Part 2

Revegetation of mine tailings usually requires amendments of phosphorus. However, phosphate addition can mobilize arsenic (As) from the tailings. A 5-mo lysimeter field trial was conducted to quantify As mobilization in gold mine tailings, in association …

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Arsenic speciation of geothermal waters in New Zealand

Total arsenic and four arsenic species; arsenite (iAs(III)), arsenate (iAs(V)), dimethylarsinic acid (DMA(V)) and monomethylarsonic acid (MA(V)), are reported in 28 geothermal features from the Taupo Volcanic Zone (TVZ) and Waikato region of New Zealand. Samples were collected for arsenic speciation …

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(PDF) Arsenic in the New Zealand environment

Arsenic in the New Zealand environment. Nanthi Bolan. 2004. See Full PDF Download PDF. See Full PDF Download PDF. Related Papers. Arsenic accumulation by aquatic and terrestrial plants.

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Elevated levels of arsenic found in Auckland and Waikato water …

Local Government Minister Simeon Brown has been briefed and has asked New Zealand's water regulating authority to ensure water providers in Auckland and Hamilton are taking appropriate action. ... It said the maximum acceptable value for arsenic in New Zealand was 0.01 milligrams per litre. Watercare reported a result of 0.011 milligrams per ...

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Arsenic: safe levels in food | NZ Government

Results show that arsenic levels are low in New Zealand. The New Zealand Total Diet Study The Food Standards Code sets maximum limits for inorganic arsenic in foods.

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Arsenic in Groundwater of the Waikato Region

Arsenic is a toxic but naturally occurring chemical element, present at low levels in all soil, water, plants, animals, and foods. For members of the general population, most exposure to arsenic is through the small amounts of this element that are naturally present in food and drinking water. ... In New Zealand, the tolerated maximum ...

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Evidence for a seasonal fluctuation of arsenic in New Zealand's …

A year-long survey, with samples collected weekly, was conducted to estimate long-term average concentrations of arsenic in treated and untreated drinking water for the city of Hamilton, New Zealand. The average concentration of arsenic in Waikato River water at Hamilton before processing was found to be (32·1 ± 3·7) μg litre −1, about ...

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Isolation and Characterization of Arsenate-Reducing Bacteria …

Anderson, Craig R. & Cook, Gregory M. (2004) Isolation and Characterization of Arsenate-Reducing Bacteria from Arsenic-Contaminated Sites in New Zealand. Current Microbiology, 48(5), pp. 341-347. ... In total, 17 morphologically distinct arsenic-resistant heterotrophic bacteria isolates were enriched from the sediment samples, and analysis of ...

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Elevated levels of arsenic detected in Waikato River …

With concerns about higher-than-normal arsenic levels in samples of Auckland and Waikato's treated water, the government water regulator will announce the most recent test results this afternoon.

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The poisoning of New Zealand with arsenic

Potentially, hundreds of thousands of people, including children and visitors to New Zealand, are being made seriously and chronically ill by inadvertent exposure to the toxic element, ARSENIC (AS)!

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Two more councils report elevated levels of arsenic in water …

Today's results in Waipā recorded 0.0138 and 0.0145mg/litre from two treatment plants. The maximum acceptable standard of arsenic for drinking water in New Zealand was 0.01mg/litre. Despite this, Water Services manager Karl Pavlovich said tap water remained safe for drinking, bathing, cleaning, and cooking, and residents did not need to boil it.

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Two more councils report elevated levels of arsenic in water supply

Today's results in Waipā recorded 0.0138 and 0.0145mg/litre from two treatment plants. The maximum acceptable standard of arsenic for drinking water in New Zealand was 0.01mg/litre. Despite this, Water Services manager Karl Pavlovich said tap water remained safe for drinking, bathing, cleaning, and cooking, and residents did not need to boil it.

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Elevated levels of arsenic detected in Waikato River affect …

With concerns about higher-than-normal arsenic levels in samples of Auckland and Waikato's treated water, the government water regulator will announce the most recent test results this afternoon.

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Hold The Arsenic

Event in Christchurch, New Zealand by Elmwood Players on Wednesday, April 23 2025. Event in Christchurch, New Zealand by Elmwood Players on Wednesday, April 23 2025 ... Hold the Arsenic is a sharp and daring comedy about four middle-aged women whose ordinary book club takes an unexpected turn as they face personal and financial challenges. Set ...

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Clinician Brief: Arsenic | Environmental Health and Medicine …

This is due to rice's ability to take up arsenic from soil and water. Rice is also typically grown under flooded conditions, which increases the potential for arsenic uptake [FDA 2020]. Other plant species take up comparatively low levels of arsenic, even when grown in highly polluted soil or soil naturally high in arsenic. ...

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Arsenic cycling in the Earth's crust and hydrosphere: interaction

We focused on better characterizing the arsenic resistance genes given that arsenic is a non-essential metalloid, nearly ubiquitous in soil (Masuda, 2018; Reimann et al., 2009), toxic to humans ...

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Evidence for a seasonal fluctuation of arsenic in New Zealand's …

DOI: 10.1016/0269-7491(94)00092-R Corpus ID: 25955759; Evidence for a seasonal fluctuation of arsenic in New Zealand's longest river and the effect of treatment on concentrations in drinking water.

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Explained: What you need to know about arsenic and …

Arsenic is a naturally occurring chemical that can cause health risks with long-term exposure. Two suppliers who source treated drinking water from the Waikato River have reported testing results...

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Phytostabilization of Gold Mine Tailings from New Zealand. Part 2

Leachates and uptakes were higher with an organic fertilizer amendment than Superphosphate, particularly in combination with barley, and the amount of As leached was proportional to the amounts of P added. Revegetation of mine tailings usually requires amendments of phosphorus. However, phosphate addition can mobilize arsenic (As) from the …

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ARSENIC: IT'S TOXICITY AND IMPACT ON HUMAN HEALTH

Arsenic is a naturally occurring element present in water, food and soil, but now-a-days this element is one of the rapidly emerging serious environmental pollutants; released into the environment ...

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Evidence for a seasonal fluctuation of arsenic in New Zealand's …

A year-long survey, with samples collected weekly, was conducted to estimate long-term average concentrations of arsenic in treated and untreated drinking water for the city of Hamilton, New Zealand. The average concentration of arsenic in Waikato River water at Hamilton before processing was found to be (32.1 +/- 3.7) microg litre(-1), about ...

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Arsenic

Codex code of Practice for the prevention and reduction of arsenic contamination in rice [1] Ashmore E, Molyneux S, Watson S, Miles G & Pearson A (2019) Inorganic arsenic in rice and rice products in New Zealand and Australia. Food Additives and Contaminants Part B, DOI: 10.1080/19393210.2019.1651403.

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Bacterial S-layer preservation and rare arsenic…

Calculation of the probable metal species in the spring water suggests that arsenic and antimony are present in solution as negative and neutrally charged sulphide or hydroxide complexes (such as HAs 2 S 4 −, H 3 AsO 3 and HSb 2 S 4 −). The early adsorption of these complexes onto reactive groups on the bacterial surface may be paramount in ...

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No cause for concern after slightly elevated levels of arsenic …

There is no immediate risk to public health. The 'maximum acceptable value' for arsenic in New Zealand drinking water is 0.01milligrams per litre. Watercare reported a result …

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Arsenic | Toxicological Profile | ATSDR

The ATSDR toxicological profile succinctly characterizes the toxicologic and adverse health effects information for the hazardous substance described here. Each peer-reviewed profile identifies and reviews the key literature that describes a hazardous substance's toxicologic properties. Other pertinent literature is also presented, but is described in less detail than the …

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Arsenic: safe levels in food | NZ Government

What is arsenic? Arsenic is a chemical found naturally in soils, rocks, and water. There are 2 types: organic arsenic, which is found in fish and shellfish; inorganic arsenic, which is found in minerals, rocks, and mine tailings. Both types can be toxic at high levels. But inorganic arsenic is much more toxic. Environments with higher arsenic ...

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Explained: What you need to know about arsenic and drinking water

Slightly elevated levels of the toxic heavy metal arsenic have been detected in treated water sourced from the Waikato River.Science and environmental reporter Jamie Morton explains what it is ...

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Arsenic toxicity: sources, pathophysiology and mechanism

Bowen's disease, basal cell carcinoma, and squamous cell carcinoma are the most common arsenic-induced skin cancers. Bowen's disease is a precancerous skin carcinoma in situ that has been well documented as a result of arsenical exposure. Clinically, Arsenic-induced Bowen's Disease (BD) can be distinguished from non-arsenical Bowen's ...

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Elevated levels of arsenic found in Auckland and …

An elevated level of arsenic has been found in two drinking water suppliers who treat water from the Waikato River. Local Government Minister Simeon Brown has been briefed and has asked New Zealand's water …

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