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Ground water arsenic

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https://www.readbyqxmd.com/read/29330821/effects-of-ferrous-sulfate-amendment-and-water-management-on-rice-growth-and-metal-loid-accumulation-in-arsenic-and-lead-co-contaminated-soil
#1
Lina Zou, Shu Zhang, Dechao Duan, Xinqiang Liang, Jiyan Shi, Jianming Xu, Xianjin Tang
Arsenic (As) and lead (Pb) commonly co-exist with high concentrations in paddy soil mainly due to human activities in south of China. This study investigates the effect of ferrous sulfate (FeSO4) amendment and water management on rice growth and arsenic (As) and lead (Pb) accumulation in rice plants. A paddy soil co-contaminated with As and Pb was chosen for the pot experiment with three FeSO4 levels (0, 0.25, and 1%, on a dry weight basis) and two water managements (flooded, non-flooded). The concentrations of As and Pb in iron plaques and rice plants were determined...
January 12, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29329710/hydride-generation-coupled-with-thioglycolic-acid-coated-gold-nanoparticles-as-simple-and-sensitive-headspace-colorimetric-assay-for-visual-detection-of-sb-iii
#2
Tesfaye Tolessa, Zhi-Qiang Tan, Jing-Fu Liu
Antimony (Sb) is a toxic element which causes different health problems including cardiac problems and lung cancer in humans, and its levels in surface water can be noticeably increased to 100 μg/L typically in the proximity of anthropogenic sources. Thus, besides instrumental techniques, it is of great significance to develop a simple, sensitive and selective analytical method for direct analysis of Sb(III) at trace level without the need of any expensive and/or complicated instrumentations and sample preparation processes...
April 3, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29260421/index-based-assessment-of-suitability-of-water-quality-for-irrigation-purpose-under-indian-conditions
#3
Surjeet Singh, N C Ghosh, Suman Gurjar, Gopal Krishan, Sumant Kumar, Preeti Berwal
Agriculture is a major sector in India which contributes around 14% of country's gross domestic product (GDP). Being an agriculture-based country, good quality of water for irrigation has been a prime requisite. Highly growing population and accelerated industrial development are causing anthropogenic pollution to both surface and groundwater on one side and geogenic contamination like arsenic, fluoride, high dissolved solids, sodicity, and iron in groundwater on other side. As a result, ensuring safe water quality for the irrigation has become a major challenge to both the central and state governments...
December 19, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29228391/arsenic-attenuates-heparin-binding-egf-like-growth-factor-egfr-signalling-that-promotes-matrix-metalloprotease-9-dependent-astrocyte-damage-in-the-developing-rat-brain
#4
Rajesh Kushwaha, Juhi Mishra, Sachin Tripathi, Waseem Raza, Kapil Mandrah, Somendu Kumar Roy, Sanghamitra Bandyopadhyay
We earlier reported that exposure to arsenic at concentrations in ground water of India attenuated glial fibrillary acidic protein (GFAP) during brain development. Here, we validated the effects and explored mechanism in cultured astrocytes and developing rat brain. We hypothesized participation of epidermal growth factor receptor (EGFR), known to regulate GFAP. We found that arsenic inactivated EGFR, marked by reduced phospho-EGFR in astrocytes. Screening EGFR ligands revealed an arsenic-mediated attenuation in cellular and secreted-Heparin-binding EGF-like growth factor (HB-EGF)...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29197518/association-between-inefficient-arsenic-methylation-capacity-and-demographic-characteristics-on-the-risk-of-skin-lesions
#5
Hifza Rasheed, Paul Kay, Rebecca Slack, Yun Yun Gong
This study was conducted in rural Pakistan to assess the dose-response relationship between skin lesions and arsenic exposure and their variation by demographic characteristics. The study included 398 participants (66 participants with skin lesions and 332 without) residing in six previously unstudied villages exposed to ground water arsenic in the range of <1 to 3090μgL-1. The skin lesions identification process involved interview and physical examinations of participants followed by confirmation by a physician according to UNICEF criteria...
November 29, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29186890/investigation-of-health-effects-according-to-the-exposure-of-low-concentration-arsenic-contaminated-ground-water
#6
Young-Seoub Hong, Byeong-Jin Ye, Yu-Mi Kim, Byoung-Gwon Kim, Gyeong-Hui Kang, Jeong-Jin Kim, Ki-Hoon Song, Young-Hun Kim, Jeong-Wook Seo
Recent epidemiological studies have reported adverse health effects, including skin cancer, due to low concentrations of arsenic via drinking water. We conducted a study to assess whether low arsenic contaminated ground water affected health of the residents who consumed it. For precise biomonitoring results, the inorganic (trivalent arsenite (As III) and pentavalent arsenate (As V)) and organic forms (monomethylarsonate (MMA) and dimethylarsinate (DMA)) of arsenic were separately quantified by combining high-performance liquid chromatography and inductively coupled plasma mass spectroscopy from urine samples...
November 27, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29123939/assessment-of-availability-and-human-health-risk-posed-by-arsenic-contaminated-well-waters-from-timis-bega-area-romania
#7
Marin Senila, Erika Levei, Oana Cadar, Lacrimioara Ramona Senila, Marius Roman, Ferenc Puskas, Mihaela Sima
Mobilization of As from geological materials into ground and drinking water sources may represent an important threat to human health. The objective of this study was to assess the As concentration and availability in underground water used as drinking water sources. Water samples were collected from public and private wells in Timis-Bega area of Pannonian Basin, West Romania. Total-dissolved As measured after "classical" filtration of water samples was in the range of 0.10-168 μg L(-1), thus exceeding the guideline value in majority of the samples...
2017: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/29017101/facile-synthesis-of-novel-calcined-magnetic-orange-peel-composites-for-efficient-removal-of-arsenite-through-simultaneous-oxidation-and-adsorption
#8
Khurram Shehzad, Chang Xie, Junyong He, Xingguo Cai, Weihong Xu, Jinhuai Liu
Increasing exposure to arsenic (As) contaminated ground water has become a global health hazard to humanity. Suitable adsorbent for As removal from water, especially for As(III) than As(V), is an urgent but still a challenging task. In this study, waste orange peel (OP) was modified with magnetic nanoparticles followed by calcination as a novel adsorbent and investigated for instantaneous oxidation and adsorption of As(III) from aqueous solutions. The batch adsorption experimental results showed that calcined magnetic orange peel composites (CMOPC) exhibited superior As(III) adsorption capacity (10...
September 30, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28987861/genome-wide-transcriptome-profiling-of-genes-associated-with-arsenate-toxicity-in-an-arsenic-tolerant-rice-mutant
#9
Sun-Goo Hwang, Sandeep Chapagain, Jae Woo Lee, A-Reum Han, Cheol Seong Jang
The presence of arsenic (As) in polluted environments, such as ground water, affects the accumulation of As in rice grains and causes a serious threat to human health. However, the precise molecular regulations related to As toxicity and tolerance in rice remain largely unknown. In the present study, we developed an arsenic-tolerant type 1 (ATT1) rice mutant by γ-irradiation mutagenesis and performed genome-wide transcriptome analysis for the characterization of As-responsive genes. Toxicity inhibited transcriptional regulation of putative genes involved in photosynthesis, mitochondrial electron transport, and lipid biosynthesis metabolism in wild-type (WT) and ATT1 rice mutant...
September 27, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28731297/smart-capsules-for-lead-removal-from-industrial-wastewater
#10
Bartosz Tylkowski, Renata Jastrząb
Ground and especially drinking water could be contaminated by heavy metal ions such as lead and chromium, or the metalloid arsenic, discarded from industrial wastewater. These heavy metal ions are regarded as highly toxic pollutants which could cause a wide range of health problems in case of a long-term accumulation in the body. Thus, there have been many efforts to reduce the concentration of lead ions in effluent wastewater. They have included the establishment of stringent permissible discharge levels and management policies, the application of various pollution-control technologies, and the development of adsorbent materials for lead reduction...
April 10, 2017: Metal Ions in Life Sciences
https://www.readbyqxmd.com/read/28718096/contamination-status-of-arsenic-in-fish-and-shellfish-from-three-river-basins-in-ghana
#11
Francis Gbogbo, Samuel Darlynton Otoo, Obed Asomaning, Robert Quaye Huago
Fish and shellfish are regularly consumed and sold in Ghana, yet studies on arsenic pollution in Ghana are limited largely to ground water. This study evaluated arsenic concentrations in seven species of shellfish and 10 species of fish inhabiting the mouth of Ankobra, Densu and Volta basins in Ghana and assessed the public health implications. Arsenic levels varied from 0.2 to 2.2 mg L(-1) in the three rivers and were higher than WHO recommended values of 10 μg L(-1) for drinking water. Except for Periophthalmus sp...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28668631/enhanced-adsorption-of-arsenic-through-the-oxidative-treatment-of-reduced-aquifer-solids
#12
Jenna R Huling, Scott G Huling, Ralph Ludwig
Arsenic (As) contamination in drinking water is an epidemic in many areas of the world, especially Eastern Asian countries. Developing affordable and efficient procedures to remove arsenic from drinking water is critical to protect human health. In this study, the oxidation of aquifer solids through the use of sodium permanganate (NaMnO4), hydrogen peroxide (H2O2), and exposure to air, enhanced the adsorption of arsenic to the aquifer material resulting in treatment of the water. NaMnO4 was more effective than H2O2...
October 15, 2017: Water Research
https://www.readbyqxmd.com/read/28626450/microbial-phosphorus-solubilization-and-its-potential-for-use-in-sustainable-agriculture
#13
REVIEW
Elizabeth T Alori, Bernard R Glick, Olubukola O Babalola
The use of excess conventional Phosphorus (P) fertilizers to improve agricultural productivity, in order to meet constantly increasing global food demand, potentially causes surface and ground water pollution, waterway eutrophication, soil fertility depletion, and accumulation of toxic elements such as high concentration of selenium (Se), arsenic (As) in the soil. Quite a number of soil microorganisms are capable of solubilizing/mineralizing insoluble soil phosphate to release soluble P and making it available to plants...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28487912/efficient-purification-of-arsenic-contaminated-water-using-amyloid-carbon-hybrid-membranes
#14
Sreenath Bolisetty, Noemi Reinhold, Christophe Zeder, Monica N Orozco, Raffaele Mezzenga
We show the purification of arsenic-contaminated water using amyloid fibril-based membranes, which adsorb both the arsenate (+5) and arsenite (+3) oxidation forms at efficiencies of ∼99%. Binding isotherms indicate that amyloid fibrils possess multiple binding residues capable of strongly adsorbing arsenic ions via metal-ligand interactions, delaying the saturation of the membrane. We also show that these membranes can be reused for several cycles without any efficiency drop, and validate our technology in purifying real contaminated ground water by removing arsenic with an efficiency as high as 99...
May 10, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28459544/nanocomposite-coated-microfluidic-based-photocatalyst-assisted-reduction-device-to-couple-high-performance-liquid-chromatography-and-inductively-coupled-plasma-mass-spectrometry-for-online-determination-of-inorganic-arsenic-species-in-natural-water
#15
Cheng-Hsing Lin, Yu Chen, Yi-An Su, Yu-Ting Luo, Tsung-Ting Shih, Yuh-Chang Sun
To selectively and sensitively determine the trace inorganic As species, As(III) and As(V), we developed a nanocomposite-coated microfluidic-based photocatalyst-assisted reduction device (PCARD) as a vapor generation (VG) device to couple high-performance liquid chromatography (HPLC) separation and inductively coupled plasma-mass spectrometry (ICPMS) detection. Au nanoparticles were deposited on TiO2 nanoparticles to strengthen the conversion efficiency of the nanocomposite photocatalytic reduction. The sensitivity for As was significantly enhanced by employing the nanocomposite photocatalyst and using prereduction and signal-enhancement reagents...
June 6, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28458060/a-novel-concept-in-ground-water-quality-management-towards-function-specific-screening-values
#16
Frank A Swartjes, Piet F Otte
This paper is meant to initiate and feed the discussion on a more sophisticated procedure for the derivation and use of groundwater screening values (GSVs). To this purpose, the possibilities and tools for the derivation of function specific GSVs, i.e., GSVs that depend on the actual contact of humans and ecosystems with groundwater and groundwater-related mediums, are elaborated in this study. Application of GSVs geared to the specific use and function of specific groundwater volumes could result in a more effective and cost-efficient groundwater quality management, without compromising the protection of human health and the ecosystem...
August 1, 2017: Water Research
https://www.readbyqxmd.com/read/28409115/a-metagenomic-approach-to-decipher-the-indigenous-microbial-communities-of-arsenic-contaminated-groundwater-of-assam
#17
Saurav Das, Sudipta Sankar Bora, R N S Yadav, Madhumita Barooah
Metagenomic approach was used to understand the structural and functional diversity present in arsenic contaminated groundwater of the Ganges Brahmaputra Delta aquifer system. A metagene dataset (coded as TTGW1) of 89,171 sequences (totaling 125,449,864 base pairs) with an average length of 1406 bps was annotated. About 74,478 sequences containing 101,948 predicted protein coding regions passed the quality control. Taxonomical classification revealed abundance of bacteria that accounted for 98.3% of the microbial population of the metagenome...
June 2017: Genomics Data
https://www.readbyqxmd.com/read/28352518/isolation-and-characterization-of-arsenic-resistant-bacteria-and-possible-application-in-bioremediation
#18
Uttiya Dey, Soumendranath Chatterjee, Naba Kumar Mondal
Ground water arsenic contamination is a widespread problem in many developing countries including Bangladesh and India. In recent years development of modern innovative technologies for the removal of arsenic from aqueous system has become an interesting topic for research. In this present study, two rod shaped Gram-positive bacteria are being reported, isolated from arsenic affected ground water of Purbasthali block of Burdwan, West Bengal, India, which can tolerate arsenate concentration up to 4500 ppm and 550 ppm of arsenite concentration...
June 2016: Biotechnology Reports
https://www.readbyqxmd.com/read/28131446/human-exposure-assessment-of-different-arsenic-species-in-household-water-sources-in-a-high-risk-arsenic-area
#19
Hifza Rasheed, Paul Kay, Rebecca Slack, Yun Yun Gong, Annie Carter
Understanding arsenic speciation in water is important for managing the potential health risks associated with chronic arsenic exposure. Most arsenic monitoring studies to date have only measured total arsenic, with few looking at arsenic species. This study assessed 228 ground water sources in six unstudied villages in Pakistan for total, inorganic and organic arsenic species using ion chromatography inductively coupled plasma collision reaction cell mass spectrometry. The concentration levels approached 3090μgL(-1) (95% CI, 130...
April 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27994824/erratum-ground-water-arsenic-contamination-a-local-survey-in-india
#20
(no author information available yet)
[This corrects the article on p. 100 in vol. 7, PMID: 27625765.].
2016: International Journal of Preventive Medicine
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