Arsenic concentrations near gold mining operations are elevated in abiotic materials and biota: maximum total arsenic concentrations measured were 560 μg/L in surface waters, 5.16 mg/L in ...
A mining area affected by the abandoned exploitation of an arsenical tungsten deposit was studied in order to assess its arsenic pollution level and the feasibility of native plants for being used ...
A mining area affected by the abandoned exploitation of an arsenical tungsten deposit was studied in order to assess its arsenic pollution level and the feasibility of native plants for being used in phytoremediation approaches. Soil and plant samples were collected at different distances from the polluting sources and analysed for their As …
A mining area affected by the abandoned exploitation of an arsenical tungsten deposit was studied in order to assess its arsenic pollution level and the feasibility of native plants for being used in phytoremediation approaches. Soil and plant samples were collected at different distances from the p …
Arsenic in leafy vegetable plants grown on mine water-contaminated soils: Uptake, human health risk and remedial effects of biochar J. Hazard. Mater., 402 ( 2021 ), Article 123488, 10.1016/j.jhazmat.2020.123488
Arsenic is a potent carcinogen found in various environments such as soil, water, and air. Its accumulation in crop plants and eventual consumption are a major global health concern (Lindsay and Maathuis, 2017).The average natural As soil content is presumed to be approximately 5 mg/kg globally, which is mainly due to the As ore …
Arsenic is released into the air by volcanoes, through weathering of arsenic-containing minerals and ores, and by commercial or industrial processes. Arsenic occurs naturally in the earth's crust, and much of its dispersion in the environment stems from mining and commercial uses. In industry, arsenic is a byproduct of the smelting process ...
Arsenic (As) contamination of gold mine tailings poses major threats to the natural environment and human health, necessitating adequate management measures. To investigate the soil As contamination level and the potential of pioneer plants for As remediation, the soil and plants of an abandoned gold mine tailings in the Qinling …
The emission and accumulation of toxic elements such as arsenic in various environmental compartments have become increasingly frequent primarily due to anthropogenic actions such as those observed …
Summary. Arsenic sources to the biosphere associated with gold mining include waste soil and rocks, residual water from ore concentrations, roasting of some types of gold-containing ores to remove sulfur and sulfur oxides, and bacterially enhanced leaching. Arsenic concentrations near gold mining operations are elevated in abiotic …
Arsenic poses an environmental and human health threat to people in gold mining communities in Ghana. Over the years, limited studies have documented the sources and occurrence of As from gold mining spoils (Table 4.1 ), and these studies have mainly focused on the southwestern mining region of the country.
This study was conducted to assess the removal of arsenic (As) and heavy metals from mining wastewater by the combination of adsorption, using modified iron-ore drainage sludge, and horizontal …
Arsenic Removal from Mining Effluents Using Plant- Mediated, Green-Synthesized Iron Nanoparticles Pari Karimi 1, Sepideh Javanshir 1, *, Mohammad Hossein Sayadi 2 and Hoda Arabyarmohammadi 3
The aim of this work is to evaluate the routes and effects of arsenic contamination in environmental compartments (air, water, and soil) and in environmental organisms (fish and vegetables) from a mining region and to evaluate the trophic transfer of the element for a risk assessment of the population. 2. Materials and Methods. 2.1.
Gold miners had a number of arsenic-associated health problems, including excess mortality from cancer of the lung, stomach, and respiratory tract. Miners and schoolchildren in the vicinity of gold mining activities had elevated urine arsenic of 25.7 microg/L (range, 2.2-106.0 microg/L). Of the total population at this location, 20% showed ...
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 …
Arsenic and heavy metal (specifically Cd, Cr, Cu, Ni, Pb, and Zn) uptake, translocation, and accumulation in ten native plant species spontaneously growing in …
Arsenic contamination in industrial and mining effluents has always been a serious concern. Recently, nano-sized iron particles have been proven effective in sorptive removal of arsenic, because of their unique surface characteristics. In this study, green synthesis of iron nanoparticles was performed using a mixed extract of two plant …
The focus of my study is to examine the impacts of abandoned uranium mines on the Navajo Nation by quantifying the levels of uranium and arsenic present in the plant community that are near or around the abandoned mines. The motivation behind this project comes from the concern of livestock owners and community members of Cove Arizona, …
MANILA — Filipino scientists have discovered what might be the next big indigenous plant material for rehabilitating a mining site teeming with copper and arsenic — and it's a largely ...
Potential sources of arsenic contamination include mining and agricultural practices that use chemical pesticides, insecticides, herbicides, desiccants, and …
Ottery Mine was listed on the New South Wales State Heritage Register on 2 April 1999 having satisfied the following criteria. The place is important in demonstrating the course, or pattern, of cultural or natural history in New South Wales. The Ottery Mine is the only arsenic refinery plant remaining in any condition in New South Wales.
The aims of this study were to assess arsenic concentrations and solubility in soils, and its uptake by plant species growing in an area strongly affected by mining activities in Murcia (SE, Spain) paying attention to the mineralogical composition of the soils and the relation of the same with the bioavailability of this element.. For this, extractions …
A summary of soil properties is shown in Table 1. The soil pH values varied from 4.5 to 6.67 with the mean value of 5.39 indicating the weakly acidic nature of soils. The contents of organic matter ranged from 0.50 to 8.25 wt.% with the mean value of 2.37% and the CEC varied from 1.8 to 19.5 meq/100 g with the mean value of 9.62 meq/100 g.
The objective of this study was to investigate if native rapid-growing plants could be successfully germinated in mercury (Hg) and arsenic (As) contaminated legacy mine tailings, both untreated and treated with a low dose of sodium selenite (Na2SeO3) to promote growth and decrease bioaccumulation of contaminants.
Contamination from mining and fracking, coal-fired power plants, arsenic-treated lumber, and arsenic-containing pesticides also contributes to increased . levels of arsenic in certain locations. PO Box 12233 • Research Triangle Park, NC 27709. Phone: 919-541-3345 • https://niehs.nih.gov. October 2023. National Institutes of Health
A mining organization located on the sides of a deep valley needed an effective way to treat mine runoff bearing arsenic levels that, when disturbed, spiked to over 500 mg/L and turbidity spikes that exceeded 101 NTU. ... The pilot plant proved CONTRAFAST technology to be an excellent solution for treating water under varying …
