The Role of Arsenic in the Mining Industry

2015-5-14 · Atmospheric arsenic emissions from copper smelting represent the largest contribution of arsenic from the mining and metals industry by far and have been the focus of pollution control technologies and increasingly stringent regulations. Arsenic can also be leached out of some metal ores by cyanide or acid rock drainage but can be captured and removed from wastewater before it is …

Arsenic in plants important to two Yukon First Nations ...

This project examines arsenic in plants growing near closed or reclaimed gold mines located in the traditional territories of two Yukon First Nations. A total of 238 soil and plant samples (comprising 9 different species) were collected from Mt. Nansen, Arctic Gold and Silver, and Venus Mine …

ia Geological Survey

In 1902, a processing plant was built at the mine site and between the years 1903 and 1917, the mine produced up to 100 tons of arsenic (Luttrell, 1966; Young, 1956). The arsenic produced here was used to manufacture insecticides (Hess and Graton, 1911). The processing mill was dismantled in 1919 and mining has not recurred since (Luttrell, 1966).

Influence of Mining Activities on Arsenic Concentration in ...

2021-4-30 · arsenic, towards the downstream environment of the mining area [18]. Several studies examined the degree of arsenic contamination in crop plants in the vicinity of this mine, and the results showed that the maximum value remained unchanged in the period of 2006 to 2011; however, there was a decrease from 0.564 to 0.32 mg/kg in the mean value, which

Analysis of arsenic species accumulation by plants and the ...

Metabolisation of ingested arsenic in the plant organism dependent on the applied arsenic oxidation state and location inside the plant The analysis of the arsenic species by IC-ICP-MS showed that a metabolisation of the inorganic arsenic taken up by the terrestrial plants did not normally take place. In the chromatograms some additional small peaks occurred, which are shown in the amplified ...

Understanding arsenic dynamics in agronomic systems to ...

2017-3-1 · Arsenic is a byproduct of most mining operations and is present at high concentrations in the mine waste, and, because arsenic sulfides are particularly prone to oxidation in surface environments, in mining wastewaters 42, 44. Arsenic can constitute 1% or more of the ore and solid waste, and wastewaters and impacted streams often contain ...

Arsenic toxicity: the effects on plant metabolism

2017-4-6 · arsenic sensitivity and the remodeling of metabolite pools that occurs in response to As exposure gives hope that additional metabolic pathways associated with As tolerance will be identified. Keywords: arsenic toxicity, arsenate, arsenite, metabolism, rice INTRODUCTION The element arsenic (As) is an environmental toxin that is found

Plant material as bioaccumulator of arsenic in soils ...

Heavy metal contamination is an important environmental problem, since the metals are harmful to humans, animals and tend to bioaccumulate in the food chain. The aim of this study was to determine the total concentration of As, As (III) and As(V) in soil samples, leaves and roots of plant material, growing in a mining area in Spain (Murcia). Ditichia viscosa was used as the plant of reference ...

The availabilities of arsenic and cadmium in rice paddy ...

The availabilities of arsenic and cadmium in rice paddy fields from a mining area: The role of soil extractable and plant silicon* Huan-Yun Yu a, Xiaodong Ding a, b, Fangbai Li a, *, Xiangqin ...

Arsenic

2018-2-15 · Arsenic is a natural component of the earth''s crust and is widely distributed throughout the environment in the air, water and land. It is highly toxic in its inorganic form. People are exposed to elevated levels of inorganic arsenic through drinking …

Mechanisms Controlling Arsenic Uptake in Rice Grown in ...

2014-9-24 · Foods produced on soils impacted by Pb-Zn mining activities are a potential health risk due to plant uptake of the arsenic (As) associated with such mining. A field survey was undertaken in two Pb-Zn mining-impacted paddy fields in Guangdong Province, China to assess As accumulation and translocation, as well as other factors influencing As in twelve commonly grown rice cultivars.

Phytoremediation of arsenic in mining‐contaminated areas ...

2010-9-16 · A few arsenic (As) hyperaccumulating plants are found in tropical countries; however, generally, they are not grown in contaminated mining sites of cold and temperate countries (Europe and other parts of the world). The transgenic plants identified to date are not believed to be suitable for commercial use of phytoremediation.

BIOREMEDIATION OF ARSENIC (AS) FROM MINE …

that belowground parts of T.angustifolia accumulate more arsenic from mine effluent compared to aboveground parts during experiment period. Therefore, the results suggested that belowground parts of the plant in HFCW play an important role for arsenic bioremediation from mine effluent which origin of Kırka Borax reserve area.

ENVIRONMENTAL SCIENCE & TECHNOLOGY

2021-8-8 · The study of arsenic in plants is significant in two ways: (1) uptake of arsenic by plants can indicate that fraction in the soil which is bioavailable (dependent on plant species) and (2) the residual arsenic in the plant is then available to the next level in the food chain, making the determination of the form of arsenic in the plant necessary.

Lupin and Arsenic: research on soil decontamination by an ...

2021-8-24 · Lupin and Arsenic: research on soil decontamination by an exceptional plant. "The legume crop white lupin (L. albus) is one such arsenic tolerant plant species being studied as for sustainable remediation", explains Adrien Frémont, lead author of the study and a doctoral student in biological sciences at the Université de Montréal.

Arsenic in plants and soil

Arsenic in Soil and Plants. Arsenic naturally occurs in the soil and elsewhere in the environment and it is the 20th most common element on Earth. Industrial activity (such as mining) can increase natural levels. Arsenic is also found in CCA treated timber, termite control products and …

Decades of arsenic poisoning produced by Giant Mine has ...

Eventually the arsenic produced was redirected underground, where it is still being kept. According the the government, the mine produced 237,000 tonnes of arsenic trioxide dust, making it one of largest stored arsenic sites in the world. The Giant Mine operated in Yellowknife from 1948 to 2004.

The Fate of Arsenic in Soil-Plant Systems

Plants vary in their ability to accumulate and tolerate As (from tolerant hyperaccumulators to sensitive excluders), and some plants are useful for soil reclamation and in sustainable agriculture, The status of current scientific knowledge allows us to manage As contamination in the soil-plant system and to mitigate arsenic''s effects.

Source, Distribution, Toxicity and Remediation of Arsenic ...

2016-6-3 · Arsenic has been used throughout history for purposes ranging from medicines to poisons. The first usage of arsenic compounds dates back to 315 B.C. It is believed that arsenic was used to increase the shininess of bronze [14]. These copper and arsenic alloys were used in the manufacturing of tools and ornaments. In addition to

[PDF] The fate of arsenic in soil-plant systems ...

Arsenic is a natural trace element found in the environment. In some cases and places, human activities have increased the soil concentration of As to levels that exceed hazard thresholds. Amongst the main contributing sources of As contamination of soil and water are the following: geologic origin, pyriticmining, agriculture, and coal burning.

Accumulation of Arsenic by Plants Growing in the Sites ...

The uptake of As by various plants growing in highly enriched sites was examined in order to identify potential As accumulators and to assess the risk associated with As presence in plant shoots. Representative samples of 13 plant species, together with soil samples, were collected from various site …

EnviroGulf Consulting

Drainage from mineralized and mined areas may have high dissolved arsenic concentrations, and of major interest as the natural sources of As in waters, soils and plants are likely to be the...

Giant Mine arsenic could be cleaned up in 5 years ...

2017-11-26 · "Freezing arsenic underground is a good solution, but in general it''s not a permanent solution," says Dr. Ahmad Ghahreman, a Queen''s University assistant professor in the department of mining.

Soil-to-plant transfer of arsenic and phosphorus along a ...

2016-12-1 · Soil-to-plant transfer of As and P was studied on As contaminated pastureland. • As contents of H. lanatus and T. repens shoots reflected the As gradient in the soil.. Low As transfer factors (mostly < 0.07) indicated a restricted soil-to-shoot transfer. Intake via soil ingestion was estimated to dominate total As intake for grazing livestock.

The availabilities of arsenic and cadmium in rice paddy ...

2016-8-1 · 1. Introduction. Due to rapid urbanization, mining, metal processing, and applications of fertilizers and sewage sludge, the pollution of heavy metals and metalloids in soils occurs widely, especially arsenic (As) and cadmium (Cd) pollution in paddy soils (Yamaguchi et al., 2011, Wang et al., 2014).As a result, rice grown in these contaminated paddy soils is seriously polluted by As or Cd.

Soil-to-plant transfer of arsenic and phosphorus along a ...

2016-12-1 · Soil-to-plant transfer of arsenic and phosphorus along a contamination gradient in the mining-impacted Ogosta River floodplain. Simmler M(1), Suess E(2), Christl I(3), Kotsev T(4), Kretzschmar R(1). Author information: (1)Institute of Biogeochemistry and Pollutant Dynamics, Department of Environmental Systems Science, CHN, ETH Zurich, Zurich ...

Arsenic Mining | Processing Equipment | Flow Chart | Cases ...

2021-8-23 · Arsenic (As) is classed as a semi-metal, or metalloid. In nature it is commonly found as a metal in low levels in most soils and in higher concentrations associated with some copper, lead and zinc ores. The most common arsenic mineral is arsenopyrite, a compound of iron, arsenic, and sulfur.