Remedial Approaches against Arsenic Pollution

The study is devoted to a very urgent and acute problem for Georgia – remediation/restoration of the arsenic (As) mining and storage sites. The approach of a given work is based on using capabilities of nature itself, which has a great adaptive potential to chemical environmental pollution. The aim of the study is to identify the bacterial strains from the endemic soil microbiota, characteristic to a specific localization of arsenic contaminated sites and able to resist to the toxicant. To determine the level of arsenic contamination, soil samples have been analyzed using Inductively Coupled Plasma - Optical Emission Spectrometry method. The distribution of arsenic in soil samples splits them into categories according to the degree of contamination, ranging from 50 ppm to 13000 ppm. The local bacteria community has been studied using conventional cultivation method along with modern method of bioindication – a biochip. The low density biochip contains the relevant probes for the identification of the bacterial consortium in soil microbiota. Chemical and microbiological analysis was based on the standards and methodologies developed by International Standards Organizations – ISO and Environmental Protection Agency – EPA. It is prospected that bioremediation can become essential part of remediation against arsenic pollution in the context of circular economy.

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Development of a Tellurium Speciation Study Using IC-ICP-MS on Soil Samples Taken from an Area Associated with the Storage, Processing, and Recovery of Electrowaste

Molecules ◽

10.3390/molecules26092651 ◽

2021 ◽

Vol 26 (9) ◽

pp. 2651

Author(s):

Magdalena Jabłońska-Czapla ◽

Katarzyna Grygoyć

Keyword(s):

Inductively Coupled Plasma ◽

Total Concentration ◽

Soil Samples ◽

Chemical Extraction ◽

Soil Extraction ◽

Inductively Coupled ◽

Sequential Chemical Extraction ◽

Icp Ms ◽

Speciation Study ◽

Plasma Mass Spectrometry

The optimization and validation of a methodology for determining and extracting inorganic ionic Te(VI) and Te(IV) forms in easily-leached fractions of soil by Ion Chromatography-Inductively Coupled Plasma-Mass Spectrometry (IC-ICP-MS) were studied. In this paper, the total concentration of Te, pH, and red-ox potential were determined. Ions were successfully separated in 4 min on a Hamilton PRPX100 column with 0.002 mg/kg and 0.004 mg/kg limits of detection for Te(VI) and Te(IV), respectively. Soil samples were collected from areas subjected to the influence of an electrowaste processing and sorting plant. Sequential chemical extraction of soils showed that tellurium was bound mainly with sulphides, organic matter, and silicates. Optimization of soil extraction allowed 20% average extraction efficiency to be obtained, using 100 mM citric acid as the extractant. In the tested soil samples, both tellurium species were present. In most cases, the soils contained a reduced Te form, or the concentrations of both species were similar.

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Assessment of radon concentration and heavy metal contamination in groundwater samples from some areas of Fazilka district, Punjab, India

Indoor and Built Environment ◽

10.1177/1420326x15591639 ◽

2016 ◽

Vol 26 (3) ◽

pp. 368-374 ◽

Cited By ~ 7

Author(s):

Ajay Kumar ◽

Saurabh Narang ◽

Rohit Mehra ◽

Surinder Singh

Keyword(s):

Environmental Protection Agency ◽

Radon Concentration ◽

Inductively Coupled Plasma ◽

Heavy Metal Contamination ◽

Atomic Emission ◽

Inductively Coupled ◽

Groundwater Samples ◽

Us Epa ◽

Safe Limits ◽

The Mean

Groundwater samples taken from 20 villages of Fazilka district, Punjab, India were analysed for radon concentration using RAD7, which is an electronic radon detector. Radon concentration varies from (1.4 ± 1.0) × 103 Bq/m3 to (4.9 ± 3.0) × 103 Bq/m3, which is much below the safe limits proposed by US Environmental Protection Agency (US EPA) and UN Scientific Committee on the Effects of Atomic Radiation. The mean annual effective dose calculated for these samples was also found to be within the limits provided by WHO and EU council. These samples were also analysed for concentration of certain heavy elements like As, Pb, Zn, Cu, Hg, Ni and Cd using inductively coupled plasma atomic emission spectrometer. Out of these, concentrations of As and Pb were found to exceed the permissible limits suggested by US EPA.

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Levels of Minor and Trace Elements of Some Commercial Fruit Juices and Syrup Produced in Artisanal and Semi-Industrial Units in Benin Republic

International Journal of Chemistry ◽

10.5539/ijc.v10n4p68 ◽

2018 ◽

Vol 10 (4) ◽

pp. 68

Author(s):

Alassane A. K. Youssao ◽

Magloire A. N. Gbaguidi ◽

Léonce Dovonon ◽

Oriol Baltrons ◽

Fabienne Seby ◽

...

Keyword(s):

Trace Elements ◽

Inductively Coupled Plasma ◽

Plasma Source ◽

Fruit Juices ◽

International Standards ◽

Mineral Fertilizers ◽

Production Chain ◽

Inductively Coupled ◽

Pineapple Juice ◽

Metallic Contaminants

Fruit juices have been gaining interest in recent years for their contributions of minerals and other essential vitamins. But, with the development of intensive agriculture massively using pesticides and mineral fertilizers, the risk of contamination of these juices is high along the production chain. In this study, we evaluated the concentrations of arsenic       (As), cadmium (Cd), berrylium (Be), aluminium (Al), strontium (Sr), tin       (Sn), barium (Ba), mercury (Hg), thallium          (Tl), lead   (Pb), thorium (Th), uranium (U) for 92 commercial samples of pineapple juice, cocktail of pineapple and watermelon and pineapple syrup of Benin and France using Inductively Coupled Plasma-Source Mass Spectrometry (ICP-MS). The concentrations vary in the following ranges: As <QL at 39.3 ppb, Cd <QL at 0.7 ppb, Be <QL at 0.59 ppb, Al 26.4 ppb at 30620 ppb, Sr 130 ppb at 4049 ppb, Sn<QL at 43 ppb, Ba 42 ppb at 1582 ppb, Hg <QL at 31.7 ppb, Tl<QL at 21.3 ppb, Pb<QL at 608 ppb, Th<QL at 24.7 ppb ppb and U <QL at 1.04 ppb. Se, Ag and Pt have concentrations below the quantification limit (<QL). The levels of Ba, Hg and Pb exceeded the norms for some samples. The presence of aluminum, arsenic and cadmium in the tested samples of fruit juices can be toxic since they have no nutritional value, and hence may be treated as potential contaminants in these beverages. The classification of concentration levels of metallic contaminants reveals two main groups, the minor and the trace elements. These results make it possible to classify the contaminants in the decreasing order of the concentrations in the following way: Al> Sr> Ba> Pb> Sn> Tl> As> Th> Hg> Cd> Be> U. The average concentrations’ levels of trace elements are generally in accordance with the levels obtained for French pineapple juices chosen as reference, national and international standards for the quality of beverages.

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Arsenic and Heavy Metals Contamination of Soils Around Oyu Tolgoi and Tavan Tolgoi Mines, Located in The South Gobi Desert of Mongolia

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.23.11955 ◽

2018 ◽

Vol 7 (2.23) ◽

pp. 260

Author(s):

Galbadrakh Ragchaa ◽

Temujin Enkhbat ◽

Enkhtor Lkhamsuren

Keyword(s):

Inductively Coupled Plasma ◽

Essential Elements ◽

Soil Samples ◽

Heavy Elements ◽

Open Pit ◽

Windward Side ◽

Gobi Desert ◽

Central Mongolia ◽

Inductively Coupled ◽

The Government

In this work inductively coupled plasma - mass spectrometry (ICP-MS) method was used to determine content of harmful to human health heavy elements such as As, Cd, Cr, Pb, Th, U, and other essential elements Zn, Cu, Ni in soil samples collected around fence of two largest in Asia copper (Oyu Tolgoi) and coal (Tavan Tolgoi) deposits. The analyses revealed average content of arsenic in the examined soil samples is exceeding 1.4 times the maximum permissible limit. It is consistent with many previous studies emphasizing on a high occurrence of arsenic in soils, well waters of North and Central Mongolia. But the contents of copper in soil samples collected from three leeward locations of the copper mine Oyu Tolgoi are up to 2.18 times higher than the maximum permitted content established by the government standard of Mongolia. The contents of Cd, Ni, Pb, U, and Zn in soil probes collected from leeward locations of Ukhaa Khudag open pit mine of Tavan Tolgoi coal deposit are higher than that of in probes collected from the windward side of that by factor ranging from 1.34 to 1.64. These facts indicate possible transport and spread of heavy elements by wind from these intense operating open pit mines into adjacent dry and windy deserted region of Mongolia.

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Determination of As, Cr, Mo, Sb, Se and V in agricultural soil samples by inductively coupled plasma optical emission spectrometry after simple and rapid solvent extraction using choline chloride-oxalic acid deep eutectic solvent

Ecotoxicology and Environmental Safety ◽

10.1016/j.ecoenv.2016.09.033 ◽

2017 ◽

Vol 135 ◽

pp. 152-157 ◽

Cited By ~ 24

Author(s):

Joseph M. Matong ◽

Luthando Nyaba ◽

Philiswa N. Nomngongo

Keyword(s):

Inductively Coupled Plasma ◽

Agricultural Soil ◽

Choline Chloride ◽

Deep Eutectic Solvent ◽

Optical Emission ◽

Soil Samples ◽

Emission Spectrometry ◽

Inductively Coupled ◽

Plasma Optical Emission Spectrometry

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Arsenic-hypertolerant and arsenic-reducing bacteria isolated from wells in Tucumán, Argentina

Canadian Journal of Microbiology ◽

10.1139/cjm-2017-0535 ◽

2018 ◽

Vol 64 (11) ◽

pp. 876-886 ◽

Cited By ~ 4

Author(s):

Daniela Maizel ◽

Pilar Balverdi ◽

Barry Rosen ◽

Adriana M. Sales ◽

Marcela A. Ferrero

Keyword(s):

Inductively Coupled Plasma ◽

High Performance ◽

World Health ◽

Bacterial Strains ◽

Inductively Coupled ◽

Plasma Mass Spectrometry ◽

Major Anions ◽

Health Organization ◽

Reducing Bacteria ◽

The Village

Arsenic-hypertolerant bacteria were isolated from arsenic-contaminated well water from the village of Los Pereyra in Tucumán province, Argentina. Microorganisms that biotransform arsenic are a major factor in arsenic mobilization in contaminated aquifers. Groundwater analyses showed a level of arsenic contamination (mean concentration of 978 μg·L−1) that exceeds the safe drinking water limit of 10 μg·L−1recommended by the World Health Organization and the Argentine Food Code. There was considerable spatial variability in the concentration of arsenic in each of the wells analyzed and in the distribution of the major anions HCO3–, SO42–, and Cl–. Eighteen bacterial strains were characterized. Six strains belonging to the Actinobacteria phylum were able to grow in media with 20 mmol·L–1As(III) or 200 mmol·L–1As(V) and were also highly resistant to Cr, Cd, and Cu. Their ability to biotransform arsenic was examined by speciation of the products by high-performance liquid chromatography inductively coupled plasma mass spectrometry. In addition, two strains, Brevibacterium sp. strain AE038-4 and Microbacterium sp. strain AE038-20, were capable of aerobic arsenate reduction, which suggests that these strains could increase the mobility of arsenic by formation of more mobile As(III).

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