Relevant bibliographies by topics / Lithologic sources of arsenic

Academic literature on the topic 'Lithologic sources of arsenic'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Lithologic sources of arsenic"

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Amanambu, Amobichukwu Chukwudi. "Geogenic Contamination: Hydrogeochemical processes and relationships in Shallow Aquifers of Ibadan, South-West Nigeria." Bulletin of Geography. Physical Geography Series 9, no. 1 (December 1, 2015): 5–20. http://dx.doi.org/10.1515/bgeo-2015-0011.

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Abstract The result of the spatial analysis as applied to the hydrogeochemical data set in the shallow aquifer of Ibadan provides an insight into the underlying factors controlling hydrogeochemical processes in the area. A total of thirty drinking water samples (six samples each from the five major lithologic formations of the study area) were collected from shallow aquifers during the rainy and dry season. Atomic Absorption Spectrophotometry (AAS) and the Beckan DU-7500 single beam spectrophotometer were used to determine concentrations of arsenic, iron and fluoride in drinking water samples and the concentrations of other chemical parameters that could affect the concentrations of the geogenic contaminants including Ca, Mg, Na and SO42− were also analysed. pH and TDS were also determined. The Pearson Correlation and Factor Analysis were used to examine the relationship between the geogenic contaminants and concentration of other hydrogeochemical parameters while isopleth maps were drawn to ascertain lines of equal geogenic concentration (Isogeogenic lines). Factor analysis reduced the dataset into three major components representing the different sources of the contaminant. Major contributors to factor 1 and 3 (Salinization and Sulphate factors respectively) are natural phenomena while factor 2 is partly geogenic. The Isogeogenic lines show places of equal geogenic concentration and also with 3D Elevation modelling showed a high peak of Arsenic and Fluoride in the Sango area. The correlation test showed that there is a positive relationship between As and SO42− 0.889 (P < 0.05) and also a positive relationship between As and Mg 0.43 (P < 0.05). The significant relationship between As and SO42−, shows a partly geogenic source resulting from the reduction of sulphate to sulphide for the mobilization of As. The positive relationship between Fluoride and pH 0.242 (P > 0.05) implies that the concentration of F within the rock formation depends on high pH value.
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Chen, Sirui, Pan Wu, Xuefang Zha, Binghuang Zhou, Jingbin Liu, and En Long. "Arsenic and Heavy Metals in Sediments Affected by Typical Gold Mining Areas in Southwest China: Accumulation, Sources and Ecological Risks." International Journal of Environmental Research and Public Health 20, no. 2 (January 12, 2023): 1432. http://dx.doi.org/10.3390/ijerph20021432.

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Gold mining is associated with serious heavy metal pollution problems. However, the studies on such pollution caused by gold mining in specific geological environments and extraction processes remain insufficient. This study investigated the accumulation, fractions, sources and influencing factors of arsenic and heavy metals in the sediments from a gold mine area in Southwest China and also assessed their pollution and ecological risks. During gold mining, As, Sb, Zn, and Cd in the sediments were affected, and their accumulation and chemical activity were relatively high. Gold mining is the main source of As, Sb, Zn and Cd accumulation in sediments (over 40.6%). Some influential factors cannot be ignored, i.e., water transport, local lithology, proportion of mild acido-soluble fraction (F1) and pH value. In addition, arsenic and most tested heavy metals have different pollution and ecological risks, especially As and Sb. Compared with the other gold mining areas, the arsenic and the heavy metal sediments in the area of this study have higher pollution and ecological risks. The results of this study show that the local government must monitor potential environmental hazards from As and Sb pollution to prevent their adverse effects on human beings. This study also provides suggestions on water protection in the same type of gold-mining areas.
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PASIECZNA, Anna. "SOIL CONTAMINATION INDUCED BY HISTORICAL ZINC-LEAD ORE MINING AND IRON AND ZINC SMELTING IN THE CENTRAL PART OF THE UPPER SILESIAN INDUSTRIAL REGION (SOUTHERN POLAND)." Biuletyn Państwowego Instytutu Geologicznego 473, no. 473 (December 20, 2018): 49–66. http://dx.doi.org/10.5604/01.3001.0012.7709.

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The purpose of the work was to determine the degree of accumulation of heavy metals, arsenic and sulphur in the soils of the central part of the Upper Silesian Industrial Region. Heavy industry, mining of metal ores and hard coal, iron and non-ferrous metallurgy as well as the discharge of industrial and municipal sewage caused a strong degradation of the natural environment of this area. The content of twenty one elements (Ag, Al, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, P, Pb, S, Sr, Ti, V i Zn) have been assayed in the soils of central part Upper Silesian Industrial Region. The contamination of the soils was assessed on the basis of contamination factors, enrichment factors and geoaccumulation indexes. The tests revealed elevated content of metals, arsenic and sulphur exceeding the levels of the regional geochemical background. Factor analysis made it possible to combine chemical elements into groups, probably derived from the same lithological or/and anthropogenic sources.
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Sodango, Terefe Hanchiso, Xiaomei Li, Jinming Sha, Jiali Shang, and Zhongcong Bao. "Sources, Spatial Distribution and Extent of Heavy Metals in Relation to Land Use, Lithology and Landform in Fuzhou City, China." Minerals 11, no. 12 (November 26, 2021): 1325. http://dx.doi.org/10.3390/min11121325.

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Assessing the spatial distribution of soil heavy metals in urban areas in relation to land use, lithology and landform may provide insights for soil quality monitoring. This study evaluated the spatial distribution, the sources and the extent of heavy metal(loid)s in the topsoil of Fuzhou city, China. A combination of GIS and multivariate approaches was used to determine the spatial distribution and the sources of heavy metals. Additionally, analysis of variance was used to determine the variability of selected heavy metals across land use, landform, and lithology. The result show that the mean concentrations of Cd, Zn, As and Pb were higher than background values. Most of the heavy metals had significant correlations with each other. In particular, V and Fe (0.84 at p < 0.01) and Ni and Cr (0.74 at p < 0.01) had strong correlations, while Cu and Fe (0.68 at p < 0.01), Cu and V (0.63 at p < 0.01), Cu and Co (0.52 at p < 0.01), Zn and Ni (0.51 at p < 0.01), Co and Fe (0.54 at p < 0.01), and Cu and Zn (0.55 at p < 0.01) had moderate correlations. Arsenic, Cu, and Zn had significant positive correlations with total nitrogen (TN). Similarly, arsenic, Zn and Cr had positive correlations with total carbon (TC), while Co had negative correlations with TN and TC at p < 0.01. The peak values for Cr, Ni, Pb, Mn, and Zn were observed in the intensively urbanized central and eastern parts of the study area, suggesting that the main sources might be anthropogenic activities. Agricultural land use had the highest content of Cd, which may be attributed to the historical long-term application of agrochemicals in the area. Additionally, its content was significantly higher in agricultural land use with shale lithology, implying that shale lithology was a key geogenic source for Cd of soils in the study area. Pb content was affected by urban land use, which may be attributed to intensive human activities such as emissions from vehicles, industrial effluents, mining activities, and other discharges. The results show the high spatial variability of heavy metal(loid)s, implying that the soils in the study area were highly influenced by both geogenic variability and human activities. Moreover, land use and lithology had significant impacts on the variability of Cd, As and Pb. Sustainable agricultural practices and urban management are recommended to sustain the eco-environment of coastal city.
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Fontes, Maurício P. F., Cecília C. Almeida, Adriana C. Dias, Sandro M. Caires, and Guilherme F. Rosa. "Arsenic in Soils: Natural Concentration and Adsorption by Oxisols Developed From Different Lithologies." Journal of Agricultural Science 11, no. 6 (May 15, 2019): 260. http://dx.doi.org/10.5539/jas.v11n6p260.

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Arsenic (As) is a toxic and a carcinogenic element naturally occurring in the environment. Therefore, studies on As natural concentration in soils and its adsorption process are important tools for the evaluation of potential risks of soil contamination in order to adoption of control actions or monitoring of potential As-contamination sources. The objective of this study was to evaluate the natural levels of As and determine the maximum adsorption capacity of As (MACAs) of six Oxisols (Latossolos) of Minas Gerais State, Brazil, developed from different lithologies. The soil sample&rsquo;s total As content was determined using the USEPA 3051A method. The adsorption experiments were performed using different As concentrations, and the MACAs was measured by the Langmuir isotherm. On average, the natural As content in Oxisols was 13.13 mg kg-1, which is above the reference value of soil quality (RVQ) for As, in Brazil (8 mg kg-1). The levels of As in Oxisols originated from metamorphic/igneous rocks were significantly higher than those of Oxisols from sedimentary rocks. Globally, the evaluated soils showed a mean MACAs equal to 2,548 mg kg-1. Soil horizon Bw showed a higher MACAs than that of A horizon. In general, the levels of clay, iron oxides, iron forms (especially poorly-crystallized) and organic carbon had a positive influence on MACAs. Although the RVQ for As is well below the MACAs in all soils, the soil adsorbed As naturally present, rendering it unavailable in the soil aqueous phase. Therefore, there was no risk of contamination for human health.
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Golfinopoulos, Spyros, Soterios Varnavas, and Dimitrios Alexakis. "The Status of Arsenic Pollution in the Greek and Cyprus Environment: An Overview." Water 13, no. 2 (January 18, 2021): 224. http://dx.doi.org/10.3390/w13020224.

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This study presents an overview about the arsenic (As) contamination and its sources in two European countries. Arsenic is a highly toxic element in its inorganic form and it is carcinogenic to human seven in low concentrations. The occurrence of As in surface water, stream and marine waters, groundwater, bottled water, sediment, soil, mines, and seafood, its environmental origin, and its impacts on human health are discussed. The classes of Geoaccumulation Index for As in Greece ranges from practically uncontaminated to extremely contaminated, and in Cyprus varies between practically uncontaminated and heavily contaminated. In many cases, the As contamination reaches very high concentrations and the impacts may be crucial for the human health and ecosystems. Physicochemical properties, regional climate and geological setting are controlling the occurrence and transport of As. In Greece and Cyprus, the geology, lithology, and ore-deposits are the most important factors for the variation of As contents in water, soil, and sediment. The dominant As species are also determined by the location and the redox conditions. The findings of this paper may be useful for scientists and stakeholders monitoring the studied areas and applying measures for protection of the human and terrestrial ecological receptors (plants, avian, mammals).
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Giouri, K., M. Vavelidis, and V. Melfos. "Occurrence of arsenic in waters and sediments of the Palea Kavala River, NE Macedonia, Northern Greece." Bulletin of the Geological Society of Greece 47, no. 2 (January 24, 2017): 934. http://dx.doi.org/10.12681/bgsg.11133.

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However, it can also be added to an aquatic system by anthropogenic activities. The aim of the present study is to determine the total As content in the Palea Kavala river (NE Macedonia, Northern Greece). The correlation between As content and some chemical and physico-chemical parameters of the samples was also examined. Research demonstrated significant As concentrations in the water and the sediments of the river. No correlation was found between As and pH, Fe, Mn in the water samples. Concerning the sediment samples, positive correlation was revealed for As with Fe and Mn content, while negative correlation was revealed between As and pH. This is probably indicative of a higher arsenic mobility in the Palea Kavala river water than in sediments. Since no anthropogenic activities were observed in the river’s catchment area, elevated As concentrations are probably due to the lithology of the broader area and especially the presence of extended ore mineralizations including As-bearing sulphide minerals. However, the research in the study area is in progress since a more detailed evaluation of the local sources of As and mechanisms of As release is required.
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Shi, Bao Hong, Juan Wang, and Yan Zhang. "Analysis on Basic Conditions and Main Control Factors of Accumulation in Eastern Area of Yishan Slope of Ordos Basin." Advanced Materials Research 524-527 (May 2012): 10–15. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.10.

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The group of reservoir and cap-rock in Chang4+5 and Chang6 has good basic conditions of accumulation in eastern area of Yishan Slope of Ordos Basin, because it located up the high quality sources rocks (Chang7) and had a lot of hydrocarbon migrated from western areas. The reservoirs were the sand bodies formed in the distributary channels of delta plain and subaqueous distributary channels of delta front. The cap-rocks were the mudstones and compacted siltites formed in the floodplain and interdistributary areas.They composed lithologic traps. The types of petroleum reservoirs belong to lithologic hydrocarbon reservoir. The distribution of oil layers controlled by depositional microfacies and the excellent quality group of reservoir and cap-rock and migration conditions.
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Lacasa, Engracia, Cristina Sáez, Pablo Cañizares, Francisco J. Fernández, and Manuel A. Rodrigo. "Arsenic Removal from High-Arsenic Water Sources by Coagulation and Electrocoagulation." Separation Science and Technology 48, no. 3 (January 2013): 508–14. http://dx.doi.org/10.1080/01496395.2012.690806.

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Shamsalsadati, Sharmin, and Chester J. Weiss. "Time-series analysis of diffusion interferometry data and its application to Bayesian inversion of synthetic borehole pressure data." GEOPHYSICS 79, no. 1 (January 1, 2014): Q1—Q10. http://dx.doi.org/10.1190/geo2013-0113.1.

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Interferometry methods in exploration geophysics are premised on a powerful theoretical foundation in which the ambient noise observed at discrete locations can be manipulated through either crosscorrelation or convolution to yield the response of a virtual “active source” experiment (i.e., the empirical Green’s function, abbreviated as EGF) without the actual deployment of physical sources. Sources of the ambient background may be either naturally occurring or engineered. Regardless, the theory for diffusive systems requires them to be volumetrically distributed over an infinite domain. The central question is then, “What region for the ambient sources matters most for good EGF estimation?” Here, we build on previous work in frequency domain EGF estimation by extending the analysis to the time domain where the broadband response is driven by the continuum of diffusive length scales therein. Analysis of the double half-space diffusion model (simulating a lithologic contact) demonstrates that sources between the two receiver locations have the most impact on EGF accuracy, and that when either of the receivers is close to the lithologic contact, the sources must also extend more deeply, into the high-diffusivity side to maintain accuracy. We further examine the suitability for inversion of EGF signals built with the limited and finite ambient source distributions expected in actual exploration scenarios. One-dimensional Bayesian inversion of singlewell and crosswell configurations of a three-layered system simulating a reservoir layer between two impermeable layers revealed that transient EGF signals were reliably invertible when sources were constrained to the middle reservoir layer. In production monitoring settings, natural sources originating from pumping and subsequent flow-related physics (pressure diffusion, electrochemical and seismoelectric effects, etc.), this result suggests that EGF signals may be a useful measure of reservoir properties.
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Dissertations / Theses on the topic "Lithologic sources of arsenic"

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Kitts, Heather Jane. "Estuaries as sources of methylated arsenic to the North Sea." Thesis, University of Plymouth, 1991. http://hdl.handle.net/10026.1/1867.

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Analytical techniques were developed for the detection of inorganic arsenic (As(III) and As(V)), monomethylarsenic (MMA) and dimethylarsenic (DMA) in water, pore waters, suspended particles and bed sediments of the Humber Estuary, Thames Estuary and the southern North Sea. Dissolved inorganic As in the Humber Estuary showed removal in the mouth of the estuary in association with an Fe-rich outfall. Intertidal sediments and suspended particles had elevated inorganic As concentrations in the vicinity of the As-rich outfall located in the low salinity zone. Particulate As had a distinct concentration gradient away from the estuary mouth, indicating the transport of As out of the estuary. The presence of MMA and DMA in the water column was attributed to the methylation of inorganic As by marine phytoplankton and was not detected when the seawater temperatures were below about 10° C DMA concentrations were higher than MMA. The Humber and the Thames Estuaries both had sources of inorganic As, but As methylation within the estuaries was not significant. MMA and DMA in the estuarine plumes and the North Sea showed strong seasonality, with concentrations below detection in winter, and maximum concentrations in late summer when the methylated As was 21% of the total As in the Humber and Thames Plumes. The concentrations of MMA and DMA in the early autumn (32% of the total dissolved As) were highest off the Dutch coast where the water temperatures were up to 18° C. There were no significant correlations between the methylated As and inorganic As, temperature, chlorophyll a nor phosphate. A water sample from a developing spring bloom was incubated and showed the removal of inorganic As at a rate of 0.04ugAs/l/day, but there was no subsequent increase in the dissolved organic species, indicating a delay interval between peak primary productivity and the release of MMA and DMA. Inorganic As was detected in the porewaters of the Humber and Thames Plumes. In late summer, MMA and DMA were found at equivalent concentrations in all the Humber Plume porewaters. Flux calculations indicated that the diffusion of inorganic As, MMA and DMA from the sediments into the water column was insignificant, largely as a result of low sediment porosity. However, a resuspension event caused a detectable increase in inorganic As at the bottom of the water column. The importance of this work to the development of the 3-D hydrodynamic model of the North Sea is discussed.
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VanDerwerker, Tiffany Jebson. "Evaluating Sources of Arsenic in Groundwater in Virginia using a Logistic Regression Model." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/77957.

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For this study, I have constructed a logistic regression model, using existing datasets of environmental parameters to predict the probability of As concentrations above 5 parts per billion (ppb) in Virginia groundwater and to evaluate if geologic or other characteristics are linked to elevated As concentrations. Measured As concentrations in groundwater from the Virginia Tech Biological Systems Engineering (BSE) Household Water Quality dataset were used as the dependent variable to train (calibrate) the model. Geologic units, lithology, soil series and texture, land use, and physiographic province were used as regressors in the model. Initial models included all regressors, but during model refinement, attention was focused solely on geologic units. Two geologic units, Triassic-aged sedimentary rocks and Devonian-aged shales/sandstones, were identified as significant in the model; the presence of these units at a spatial location results in a higher probability for As occurrences in groundwater. Measured As concentrations in groundwater from an independent dataset collected by the Virginia Department of Health were used to test (validate) the model. Due to the structure of the As datasets, which included As concentrations mostly (95-99%) = 5 ppb, and thus few (1-5%) data in the range > 5 ppb, the regression model cannot be used reliably to predict As concentrations in other parts of the state. However, our results are useful for identifying areas of Virginia, defined by underlying geology, that are more likely to have elevated As concentrations in groundwater. Results of this work suggest that homeowners with wells installed in these geologic units have their wells tested for As and regulators closely monitor public supply wells in these areas for As.
Master of Science
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Fosbury, DeEtta. "Identifying the influences of geothermal sources on shallow aquifer water quality." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1446455.

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Edvardsson, Matilda. "Geochemical tracing of Arsenic sources in groundwater at the remediated Storliden mine, Skellefte district." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-82694.

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The Swedish mining industry has changed from the historical situation with several smaller mines to the present situation with a few, bigger mines. This results in presence of abandoned mines around Sweden. Remediation of mines is regulated by legislation and the present demands are considerably higher than it was some decades ago.  The Storliden mine was a Zink- and Coppermine active between 2001-2008. Storliden is located in Malå municipality, Västerbotten county, and is included in the Skellefte district, known for its sulfide mineralizations.  The ore was broken underground with a technique called cut and fill mining. It was estimated that the ore was to be consumed in 2007, but due to rising ore prices, the mine was operated until 2008. Remediation was done through backfilling the mine with waste rock from Storliden and Boliden’s mines Renström, Kedträsk, and Kankberg. Also, tailings, concrete, and sludge from the sedimentation basins were backfilled. Today, the mine is filled with water.  High Arsenic concentrations in water is a serious health issue in parts of the world. Bangladesh is perhaps the most common example where Arsenic in groundwater has caused health problems for millions of people. In Sweden, the Skellefte field is known for its elevated Arsenic concentrations in the bedrock, related to sulfide mineralizations. Studies confirm a correlation between Arsenic-bearing bedrock and elevated concentrations in water.  This thesis work has been conducted together with the consultant company Golder Associates (Golder) in Luleå. Golder has performed environmental investigations in the Storliden area during the period 2018-2020. Installation and sampling of groundwater wells were included in this investigation. High concentrations of Arsenic was found in some of the groundwater wells. This thesis aims to review potential sources of Arsenic and their potential significance. The purposes are to be fulfilled by evaluating and interpreting the results from the sampling, Piper diagrams, ratios, and modeling in the program PHREEQC.  The results indicate that the presence of Arsenopyrite in the bedrock is the most likely source of the elevated concentrations of Arsenic in deep groundwater. Oxidation of Arsenopyrite is likely caused by mainly dissolved oxygen in groundwater. Further, the water quality differs from different depths, indicating that deep groundwater and water flow from the mine via the ramp do not have any immediate connection. It is likely that remains of tailings on the industrial area cause low pH and leaching of metals locally.  High concentrations of Arsenic can occur very locally, highlighting the importance of conducting sampling of groundwater used as drinking water in areas where sulfide mineralizations are confirmed or suspected. Further, a relation between the time that water is in contact with the bedrock/mineralization and the concentration of Arsenic is stated. Higher concentration HCO3- tends to correlate with elevated Arsenic concentration.
Sveriges gruvindustri har förändrats i snabb takt, från ett flertal mindre gruvor till dagens läge med ett mindre antal större gruvor. Detta resulterar i förekomst av nedlagda gruvor runt om i Sverige. Efterbehandling av gruvor regleras genom lagstiftning, och kraven idag är betydligt högre än för bara något decennium sedan.   Storlidengruvan var en zink- och koppargruva verksam mellan 2001–2008. Storliden ligger i Malå kommun och området ingår i Skelleftefältet, känt för sina sulfidmineraliseringar. Malmen bröts i en underjordsgruva med så kallad igensättningsbrytning, dvs. tomrum har succesivt fyllts ut med material under driften. Malmen beräknades vara förbrukad 2007, men när malmpriset ökade kunde gruvan leva vidare till 2008. Efterbehandlingen innebar att fylla igen gruvan med gråberg från Storliden men också gråberg från Bolidens gruvor Renström, Kedträsk och Kankberg. Dessutom användes anrikningssand, cement och slam från sedimentationsbassängerna för att fylla igen gruvan. Länshållning av gruvan upphörde och idag är gruvan vattenfylld. Höga arsenikhalter i vatten är ett hälsoproblem i delar av världen. Det kanske vanligaste exemplet är Bangladesh, där arsenik i grundvatten har orsakat hälsoproblem för miljontals människor. I Sverige är Skelleftefältet utmärkande för den höga arsenikhalten i berggrunden. Naturlig arsenikhalt i borrade brunnar har undersökts i flera studier som visar ett samband mellan arsenikhaltig berggrund och förhöjda halter i vatten.  Examensarbetet har utförts tillsammans med konsultföretaget Golder Associates i Luleå. Golder har fått i uppdrag att utföra miljötekniska undersökningar i Storlidenområdet, bland annat ingick installation och provtagning av grundvattenrör. Denna provtagning skedde under perioden 2018–2020. I några av grundvattenrören påträffades förhöjda halter av arsenik. Detta examensarbete syftar till att utreda förekomsten av Arsenik i grundvattnet, undersöka vilka källor som kan vara orsaken till arsenikhalterna samt källornas förväntade betydelse. Detta har gjorts genom att utvärdera och tolka resultaten från provtagningarna samt användningen av Piper-diagram, geokemiska kvoter och geokemisk modellering i programmet PHREEQC. Resultaten indikerar att förekomst av arsenikkis som mineralisering i berggrunden är den mest troliga källan till de förhöjda halterna av arsenik i djupt grundvatten. Oxidationen av arsenikkis sker troligtvis främst av löst syre i grundvattnet. Vidare skiljer sig vattenkvalitén åt från olika djup och delar av området som provtagits, dvs. det verkar inte finnas någon omedelbar koppling mellan djupt grundvatten och vatten som kommer via rampen som leder till gruvan. Det är troligt att rester av anrikningssand på industriområdet orsakar lågt pH och metallutlakning lokalt.  Höga arsenikhalter kan förekomma lokalt, vilket understryker vikten av att utföra provtagning av grundvatten som används för dricksvatten i områden där misstänkt eller konstaterade sulfidmineraliseringar förekommer, eftersom arsenik annars kan vara en mycket skadlig ”diffus” förorening. Vidare konstateras också samband mellan den tid som vatten är i kontakt med mineralisering och arsenikhalt. Högre halt HCO3- tenderar att korrelera med förhöjd arsenikhalt
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Harvey, Abby (Abigail P. ). "Sources of arsenic and lead in drinking water of Eastport, Perry, and Pleasant Point, Maine." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119317.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2018.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 58-61).
Lead and arsenic in drinking water are a health risk to communities throughout the world; lead can be a problem in houses with old piping systems with either lead piping or 50/50 lead solder, and groundwater in Maine contains high arsenic concentrations. This study sought to determine the prevalence and sources of arsenic and lead in the drinking water of Eastport, Perry, and Pleasant Point, Maine. Citizens of these towns submitted water samples from their homes, and arsenic and lead were measured in these samples. Each citizen submitted two samples: one where water stood in the pipes for a minimum of six hours, and another where the tap was flushed for 2+ minutes before sample collection. The primary water sources in the region were municipal water, from the Passamaquoddy Water District (PWD), and well water from private wells. Water samples were also collected from the source waters of the municipal water system, the Passamaquoddy Water District, and immediately following water treatment to determine sources of lead in the municipal system. Lead concentrations were found to be below the Environment Protection Agency (EPA) action level of 15ppb throughout the municipal system, and less than 1% of PWD samples exceeded the action level for lead in the standing samples. Overall, including houses with wells, 2% of houses exceeded the EPA action level in standing samples, and these houses are inferred to contain high lead levels in their piping. Arsenic levels in well water samples were found to exceed the EPA Guideline of 10[mu]g/L in 15% of samples, and did not depend on bedrock type, pH, or well depth, suggesting that bedrock heterogeneity and fracture geometry plays a large role in arsenic concentrations in this region.
by Abby Harvey.
M. Eng.
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Magnone, Daniel. "Modelling the sources of organic material, processes and timescales leading to arsenic contamination of circum-Himalayan groundwaters." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/modelling-the-sources-of-organic-material-processes-and-timescales-leading-to-arsenic-contamination-of-circumhimalayan-groundwaters(852ae5a1-b09a-44fd-99b3-d8ae2dcc65c6).html.

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Arsenic contamination of circum-Himalayan groundwater is leading to one of the greatest humanitarian disasters of modern times, poisoning at least 70 million people who are mostly poor and rural. The groundwater is hosted in Holocene aquifers consisting of Himalayan sediments deposited by the great Asian rivers in deltaic environments. Arsenic is released when organic material (OM) reacts with the iron-oxide minerals co-deposited in the sediments onto which arsenic is adsorbed. The source of OM is one of the most important questions facing researchers and policy makers. There are generally accepted to be three potential sources of OM: 1) sedimentary bound OM (SOM) co-deposited with sediments; 2) thermally mature petroleum upwelled from reservoirs below the aquifers; 3) dissolved organic carbon (DOC) some of which might be drawn in to the aquifer through modern pumping and irrigation. In this thesis the nature of organic material in the aquifer is researched and the processes and timescales which lead to arsenic release are studied. Here evidence for a new conceptual model of arsenic release is presented. Isotopic tracing combined with a new geochemical model and organic geochemical techniques, shows that OM driving arsenic release pre-dates agriculture in the region and was from natural grasslands in the early Holocene. The geochemical model utilises strontium isotopes to correct the radiocarbon age of dissolved inorganic carbon (DIC) to find only the age and isotopic signature of DIC from oxidation of organic material. This shows that DIC from oxidation of OM was from the early Holocene and had an isotopic signature consistent with the early Holocene SOM in this region. A study of the sediments in the region built upon a geomorphological history shows that the most oxidised SOM is from early Holocene sediments. Thus both techniques separately indicate that pre-agricultural organic material drove arsenic release. This conceptual model however reveals the "arsenic sand paradox", because whilst release is from early Holocene clays, today highest concentrations of arsenic are in younger sands. Explaining this paradox is the most important next step leading on from this research.
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Selck, Brian John. "Natural and Anthropogenic Sources of Arsenic and Nitrate in a Semi-Arid Alluvial Basin; Goshen Valley, Utah." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6533.

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Arsenic (As) and nitrate (NO3) are common contaminants in groundwater that are introduced through a variety of natural and anthropogenic sources. In this study we investigated the sources and distribution of As and NO3 in Goshen Valley, Utah, USA. Goshen Valley is a semi-arid alluvial basin that is impacted by geothermal waters, agriculture, urban development, and legacy mining. In this study we sampled surface water, springs, and wells to analyze concentrations of major ions, trace elements (As, B, Ba, Ca, Fe, K, Li, Mg, Mn, Mo, Pb, Si, Sr, Zn), and stable isotopes in water (δ18O and δD). A subset of samples were also analyzed for 87Sr/86Sr, δ34S, and tritium (3H). Major ion concentrations showed high spatial variability ranging from freshwater to brines, with the highest concentrations found in springs discharging from playa sediments. Likewise, the highest trace element concentrations, including As, were found in the playa-impacted springs. Elevated NO3 concentrations were found in springs and wells in agricultural areas of the valley. δ18O and δD values range from -0.90238 to -17.6 and -37.0891 to -134.5 respectively and represent that the valley contains old groundwater, evaporative surface water, and mixed water signatures in multiple wells. Tritium values range from 0.5 to 7.8 and further show the diversity of water in the valley by indicating old, young, and mixtures of old and young waters. Variations in 87Sr/86Sr were used to evaluate flowpaths of waters with elevated As. 87Sr/86Sr ratios suggest that the groundwater has interacted with a mixture of lithologic units including Tertiary volcanics, Paleozoic carbonates, and Quaternary alluvial/lacustrine fill. Correlations with As and playa affected springs indicate playa sediments as a major As source. The As found in wells has no apparent elemental correlations or spatial patterns and is likely due to the naturally occurring As in the valley alluvium and carbonate units. NO3 in the valley is concentrated in agricultural areas and is likely due to fertilizers, livestock, and alfalfa crops. Of all the potential contaminant sources, the data suggests that the major source of As is the saline playa soils and the major source of NO3 is agricultural activities in the valley.
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Dumaresq, Charles G. Carleton University Dissertation Earth Sciences. "The occurrence of arsenic and heavy metal contamination from natural and anthropogenic sources in the Cobalt Area of Ontario." Ottawa, 1993.

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Siaka, Hermann Wilfried. "Compréhension des modes de désactivation de procédés catalytiques de traitement des NOx adaptés aux sources stationnaires." Thesis, Lille 1, 2020. http://www.theses.fr/2020LIL1R002.

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Cette étude est associée à une problématique industrielle visant à acquérir des connaissances fondamentales sur le fonctionnement de nouvelles technologies de post-traitement des fumées provenant de fours industriels et en particulier leur résistance face aux phénomènes de la désactivation. Aujourd’hui, la technologie catalytique est la plus efficace pour réduire les émissions d’oxydes d’azote (NOx). L’empoissonnement de catalyseurs V2O5-WO3/TiO2 par le potassium et l’arsenic issus de fours à combustion alimentés par des sources biomasses et des fours verriers ont été étudiés. L’empoisonnement a été simulé par imprégnation de potassium et d’arsenic pour différents rapports K/V et As/V correspondant à différents temps de fonctionnement de l’installation. L’étude cinétique a permis d’établir des relations structure-activité pertinentes permettant a priori d’établir un modèle prédictif permettant de prévoir une perte de performances d’un catalyseur SCR pour des rapports proches de 3. Dans ces conditions la sélectivité du catalyseur est fortement dégradée au profit d’une réaction secondaire non désirée : l’oxydation de l’ammoniac en NO
The aim of this study is in connection to industrial problem which consists in implementing the best available technologies for the purification of fumes from industrial furnaces and particularly to check their lifetime due to deactivation phenomena. Nowadays, the catalytic technology is highly efficient to treat tail gas before rejection in the atmosphere. V2O5-WO3/TiO2 is recognized as benchmark catalyst and has been investigated in this study for the abatement of NOx. Poisoning effects induced by potassium and arsenic due to the use of biomass sources as fuel and more specifically in the fabrication process of glass were investigated.Potassium and arsenic poisoning have been simulated taking different K/V and As/V ratios corresponding to various time exposures of the catalysts in typical running conditions. The kinetic study allows the establishment of structure-reactivity relationships which can a priori predict the deactivation corresponding to a quasi-complete degradation of the catalysts for atomic ratios reaching 3. In these conditions, it was found that the selectivity is strongly altered mainly due the occurrence of undesired reactions: the ammonia oxidation to NO
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Lucca, Enrico. "Geochemical Investigation of Arsenic in Drinking Water Sources in Proximity of Gold Mining Areas within the Lake Victoria Basin, in Northern Tanzania." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224175.

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Access to safe drinking water is a challenge for rural communities in many developing countries. Drinking contaminated water endangers human health and impairs social and economic development. Arsenic (As) is a metalloid widely distributed into the environment and is highly toxic in its trivalent inorganic form. The natural occurrence of As in groundwater used for drinking has been associated to the insurgence of skin disorders and respiratory diseases in many parts of the world. Arsenic is frequently found in the form of sulphide in gold deposits. Human exposure to As via drinking water has resulted from gold mining activities in some instances in USA, Asia, South America and Africa. The problem of As in drinking water has been brought to attention in Tanzania only few years ago and further investigation are therefore needed to enable an early detection of harmful exposures. This study aims to assess occurrence, source and mobilization mechanisms of As in some drinking water sources within the Lake Victoria Basin, in Northern Tanzania. Rural communities living in areas known for artisanal and large-scale gold mining activities were the target of the present study. Fifty-four water samples were collected from a variety of drinking water sources (spring, borehole, river and shallow well) in Mara and Geita region during October 2016. pH, electrical conductivity (EC), Redox potential (Eh) and As were measured in situ. Major ions, dissolved organic carbon (DOC) and trace elements, including As, were analysed in the sampled water at KTH-Royal Institute of Technology, in Sweden. 53% of the sampled water do not comply with the WHO recommended limit of 10 μg/L, representing a serious health risk for some rural communities within the Lake Victoria Basin. The spatial distribution of As in the area under investigation is highly heterogeneous and it is mainly influenced by local geology and proximity to the mining sites (approx. < 5 km). Lower As levels in boreholes than in rivers and shallow wells indicates contamination of surface drainage by mining activities and suggest that deep groundwater ( > 40 m) generally represent a source of safer drinking water. The field-measured Redox potential indicates oxidising conditions, suggesting that oxidation-dissolution of arsenic sulphide minerals is a major mechanism of arsenic mobilization in groundwater. However, this study reveals that several geochemical processes control fate and mobility of As, once it has been released into the aquatic environment. Large discrepancies between field and laboratory measurements of As indicates a strong partition of the metalloid into the particulate fraction. As revealed by the geochemical modelling, co-precipitation with iron /aluminium hydroxides and adsorption on clay minerals are presumed to be the major sinks for dissolved As. Moreover, a good match between peaks in As and dissolved organic carbon concentrations suggests that complexation by humic acids is responsible for enhanced As mobility. Overall, the present study has led to a better understanding of the problem of arsenic in proximity of gold mining areas in Tanzania and it calls for the development of affordable and sustainable solutions which would provide safe drinking water to the affected population.
Tillgången till rent, säkert vatten är en utmaning på landsbygdssamhällen i många utvecklingsländer. Åtgång på förorenat vatten riskerar människors hälsa och skadar social och ekonomisk utveckling. Naturlig förekomst av arsenik (As) i grundvatten är ett globalt miljöproblem, vilket utgör en allvarlig risk för människors hälsa på grund av metalloidens höga toxicitet. Med tanke på att arsenic sulfids mineraler är en viktigt del av guld insättning, har guldgruva aktiviteter anvisas som en orsak till att föroreningar av dränering och grundvatten i flera länder. Problemet med As i dricksvatten har uppmärksammats i Tanzania för några år sedan och det krävs ytterligare undersökning för att möjliggöra tidig upptäckt av skadliga exponeringar. Denna studie syftar till att bedöma förekomsten, källan och mobiliseringsmekanismerna för arsenik i vissa dricksvattenkällor i Lake Victoria Basin, i norra Tanzania. Landsbygdssamhällen som är kända för hantverksmässiga och storskaliga guldgruva arbeten var målet för den nuvarande studien. Femtiofyra vattenprover samlades från källvatten, borehålsvatten, floder och grundbrunn i Mara och Geita-regionen under oktober 2016. pH, redoxpotential (Eh), temperatur och elektrisk konduktivitet (EC) mättes i fält. Vattenprovernas koncentration av an- och katjoner, spårämnen (bl.a. arsenik), As(III) samt löst organiskt kol (DOC) analyserades i Sverige på Kungliga Tekniska Högskolan (KTH). Femtiotre procent av det provtagna vattnet överensstämmer inte med WHO:s rekommenderade gräns på 10 μg / l, vilket utgör en allvarlig hälsorisk fö vissa landsbygdssamhälen i Victoria-sjö. Den geografiska fördelningen av As i det undersökta området är högst heterogen och påverkas huvudsakligen av lokal geologi och närhet till gruvplatserna (ca <5km). Lägre As-nivår i borehål än i floder och grunda brunnar visar att föroreningar av dränering pågrund av gruvverksamhet och föeslår att djupt grundvatten (> 40m) i allmähet utgör en källa till säkrare dricksvatten. Däremot, visar denna studie att flera geokemiska processer kontrollerar förutbestämmelse och röligheten för As, nä det har blivit frisläppts ut i vattenmiljö. Stora skillnader mellan fält- och labbmäningar av As indikerar en stark partition av metalloid i partikelfraktionen. Som avslöjas av geokemisk modellering antas, samutfällning med järn / aluminiumhydroxider och adsorption på lermineraler vara de huvudsakliga sänkorna fö upplöst As. Dessutom antyder en bra matchning mellan toppar i As och upplösta organiska kolkoncentrationer att komplexbildning med humana och fulviska syror är ansvarig för föbättrad rölighet.
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Books on the topic "Lithologic sources of arsenic"

1

Masotti, Andrea. Arsenic: Sources, environmental impact, toxicity and human health : a medical geology perspective. Hauppauge, N.Y: Nova Science Publisher's, 2012.

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de, Candé-Montholon François, ed. L' énigme Napoléon résolue: L'extraordinaire découverte des documents Montholon. Paris: Albin Michel, 2000.

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Dumaresq, Charles G. The occurrence of arsenic and heavy metal contamination from natural and anthropogenic sources in the Cobalt area of Ontario. Ottawa, Ont: Dept. of Earth Sciences, Carleton University, 1993.

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Schaumloffel, John Clinton. Sediments contaminated by mining and smelting activiites as sources of zinc, cadmium, lead and arsenic in Lake Coeur d'Alene and Lake Roosevelt. Seattle, WA: Dept. of Chemistry, Washington State University, 1996.

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Denton, Gary R. W. Impact of land-based sources of pollution on coastal water quality of Saipan, Commonwealth of the Northern Mariana Islands (CNMI): Arsenic, mercury and PCBs in popular table fish from Saipan lagoon. [Agana, Guam]: Water and Environmental Research Institute of the Western Pacific (WERI), University of Guam, 2010.

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D, Pellizzari Edo, AWWA Research Foundation, United States. Environmental Protection Agency., and Association of California Water Agencies., eds. Arsenic contribution from dietary sources. Geneva: World Health Organization, 2003.

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Locating and estimating air emissions from sources of arsenic and arsenic compounds. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, 1998.

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United States. Environmental Protection Agency. Office of Air Quality Planning and Standards., ed. Locating and estimating air emissions from sources of arsenic and arsenic compounds. Research Triangle Park, N.C: Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, 1998.

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(Editor), E. Pellizzari, J. Raymer (Editor), C. Clayton (Editor), R. Fernando (Editor), and L. Milstein (Editor), eds. Arsenic Contribution from Dietary Sources: Awwarf Report (90969f) (Awwa Research Foundation Reports). IWA Publishing (Intl Water Assoc), 2004.

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H, Welch Alan, Hughes Jennifer L, and Geological Survey (U.S.), eds. Hydrologic, lithologic, and chemical data for sediment in the shallow alluvial aquifer at two sites near Fallon, Churchill County, Nevada, 1984-85. Denver, CO: U.S. Dept. of the Interior, Geological Survey, 1986.

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Book chapters on the topic "Lithologic sources of arsenic"

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Garelick, Hemda, Huw Jones, Agnieszka Dybowska, and Eugenia Valsami-Jones. "Arsenic Pollution Sources." In Reviews of Environmental Contamination and Toxicology, 17–60. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-79284-2_2.

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Meharg, Andrew A., and Fang-Jie Zhao. "Sources and Losses of Arsenic to Paddy Fields." In Arsenic & Rice, 51–69. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2947-6_4.

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Farooqi, Abida. "Sources of Pollution, Discussion: Case Study." In Arsenic and Fluoride Contamination, 123–39. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2298-9_5.

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Shrivastava, Anamika. "Dietary Arsenic Exposure: Sources and Risks." In Arsenic Toxicity: Challenges and Solutions, 95–125. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6068-6_4.

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Parhi, Pankaj K., Snehasish Mishra, Ranjan K. Mohapatra, Puneet K. Singh, Suresh K. Verma, Prasun Kumar, and Tapan K. Adhya. "Arsenic Contamination: Sources, Chemistry and Remediation Strategies." In Metal, Metal-Oxides and Metal-Organic Frameworks for Environmental Remediation, 219–38. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68976-6_8.

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Tippairote, Torsak, Weeraya Karnpanit, and Dunyaporn Trachootham. "Sources of Arsenic Exposure in Well-Nourished Children." In Advances in Water Security, 73–101. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21258-2_4.

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Izhar, Shamsul, Mohd Halim Shah Ismail, and Lee Yuan Chuan. "Removal of Boron and Arsenic From Petrochemical Wastewater Using Zeolite as Adsorbent." In From Sources to Solution, 439–43. Singapore: Springer Singapore, 2013. http://dx.doi.org/10.1007/978-981-4560-70-2_79.

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Kim, Kyoung-Woong, and Kongkea Phan. "Arsenic Contamination in Groundwater and Human Health Risks in the Mekong River Basin of Cambodia." In From Sources to Solution, 531–35. Singapore: Springer Singapore, 2013. http://dx.doi.org/10.1007/978-981-4560-70-2_95.

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Titah, Harmin Sulistiyaning, Siti Rozaimah Sheikh Abdullah, Idris Mushrifah, Nurina Anuar, Hassan Basri, and Muhammad Mukhlisin. "Optimization of Arsenic Phytoremediation by Ludwigia octovalvis in Pilot Reed Bed System using Response Surface Methodology." In From Sources to Solution, 251–55. Singapore: Springer Singapore, 2013. http://dx.doi.org/10.1007/978-981-4560-70-2_46.

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Gadgil, Ashok J., Susan Amrose, and Dana Hernandez. "Stopping Arsenic Poisoning in India." In Introduction to Development Engineering, 359–98. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86065-3_14.

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AbstractIn the 1980s, most households of rural India and Bangladesh switched from surface sources for their drinking water – which was causing high incidence of diarrheal disease – to groundwater extracted by hand pumps. However, for tens of millions of people, this groundwater contained high levels of arsenic, which has led to what the WHO has called the “largest mass poisoning of a population in history.” This case study describes the development of ElectroChemical Arsenic Remediation (ECAR), which is a technology that uses iron electrodes to oxidize and remove aqueous arsenic from drinking water. Pilot evaluation of ECAR began in 2011, with a 100 L reactor at a school in Amirabad. However, political tensions in Amirabad caused the subsequent 600 L reactor pilot to be relocated to a school in Dhapdhapi. The findings from this pilot enabled the construction of a 10,000-liter per day (LPD) ECAR plant at Dhapdhapi. During this scaling up process, technical and contextual challenges were encountered and overcome, including those arising from intermittent power supply and a hot/humid climate. Additionally, implementation challenges included training of local operators, ensuring continuity of knowledge within the team, revisiting and correcting early mistakes, and additional engineering work needed during commissioning. The 10,000 LPD plant has been successful both technically and financially. However, after the handoff of the ECAR technology and plant to the local partner, Livpure in 2016, no widespread replication of ECAR plants in the region has occurred. The engineering science behind ECAR continues to be an active area of research, with ongoing projects investigating the implementation of next-generation ECAR technologies in rural California and the Philippines.
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Conference papers on the topic "Lithologic sources of arsenic"

1

Wolfson, R. G. "Liquid sources of arsenic for thin-film semiconductor deposition." In AIP Conference Proceedings Volume 166. AIP, 1988. http://dx.doi.org/10.1063/1.37121.

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Anderson, Corby, and Larry G. Twidwell. "The Selective Separation and Stabilization of Arsenic from Primary and Secondary Sources." In The 5th World Congress on Mechanical, Chemical, and Material Engineering. Avestia Publishing, 2019. http://dx.doi.org/10.11159/mmme19.1.

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Schreiber, Madeline E., Tiffany VanDerwerker, and Lin Zhang. "EVALUATING SOURCES OF ARSENIC IN GROUNDWATER IN VIRGINIA USING A LOGISTIC REGRESSION MODEL." In 66th Annual GSA Southeastern Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017se-291258.

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Planer-Friedrich, Britta, Anne Eberle, Johannes Besold, José León-Ninin, Carolin Kerl, Katharina Kujala, Juan Lezama-Pacheco, and Scott Fendorf. "Turning peatlands from arsenic sinks to sources – the pH-dependent role of reduced sulfur in controlling arsenic methylation, thiolation, and thereby net mobility." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.7617.

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Methner, M. "318. Identifying Sources of Potential Arsenic Exposures at a Former Uranium Enrichment Scrap Yard Operation." In AIHce 2004. AIHA, 2004. http://dx.doi.org/10.3320/1.2758348.

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Hassan, Howlader Rahidul, Gytautas Ignatavičius, and Vaidotas Valskys. "AN OVERVIEW OF ARSENIC POLLUTION OVER FOUR NORTH-EAST COUNTRIES OF EUROPE INFLUENCED BY NATURAL AND ANTHROPOGENIC SOURCES." In 24-oji jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija APLINKOS APSAUGOS INŽINERIJA. Vilniaus Gedimino Technikos Universitetas, 2020. http://dx.doi.org/10.3846/aainz.2021.09.

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Arsenic (As) is one of the most important elements found in the environment. It is a toxic metalloid that is res-ponsible for the contamination of soil/sediments and water courses due to various natural and anthropogenic processes. This may lead to adverse effects on human health, therefore it is important to monitor and control. The objective of this paper is to summarize the literature on arsenic anomalies in soil/sediments and water of four North-East European countries; the measurements are reported for Finland, Sweden, Lithuania and Poland. The origin of most of the arsenic pollution is determined to be natural and mostly anthropogenic for these co-untries. The data reveal that As is present in matrices such as soil, sediments and water. This review highlights that the As concentration in drinking water or soil/sediments of the four countries exceeds the international standard limits. As at higher concentrations are associated with the mining region of Adak in the Västerbotten district of northern Sweden (e.g. groundwater upto 2900 μg/L; sediments upto 900 mg/kg).
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Killough, Madeleine Becker, Katharine Scanlan, Brian Mailloux, Tasbiha Chowdhury, Alexander van Geen, Benjamin C. Bostick, M. Rajib Hassan Mozumder, et al. "RADIOCARBON ANALYSIS OF MICROBIAL RNA TO DETERMINE CARBON SOURCES IN ARSENIC CONTAMINATED PLEISTOCENE AQUIFERS IN BANGLADESH." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-324526.

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Blake, Johanna. "SOURCES OF ALUMINUM, ARSENIC, AND LEAD TO THE SAN JUAN RIVER THROUGH NAVAJO NATION, SOUTHWESTERN USA." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-383561.

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Cozzarelli, Isabelle, Brady Ziegler, Katherine Jones, Zoe Lacey, and Madeline Schreiber. "Secondary effects of hydrocarbon sources and waste materials in the environment: mobilization of arsenic and trace elements." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.11389.

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Carling, Gregory T., Brian J. Selck, Stefan Kirby, Neil C. Hansen, Barry R. Bickmore, Kevin A. Rey, David G. Tingey, Janae Wallace, and J. Lucy Jordan. "NATURAL AND ANTHROPOGENIC SOURCES OF ARSENIC AND NITRATE IN A SEMI-ARID ALLUVIAL BASIN; GOSHEN VALLEY, UTAH, USA." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-298473.

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Reports on the topic "Lithologic sources of arsenic"

1

Sengupta, S., A. Rencz, G. Hall, T. Pal, P. Mukherjee, and R. Beckie. Report of activities 2003-2005: Development of a mitigation strategy to manage risk from arsenic toxicity in groundwater of West Bengal, India. Phase 1: naturally occurring arsenic in groundwater: a preliminary investigation of sources and release mechanisms, Gotra, West Bengal, India. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2007. http://dx.doi.org/10.4095/224376.

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Kirby, Stefan M., J. Lucy Jordan, Janae Wallace, Nathan Payne, and Christian Hardwick. Hydrogeology and Water Budget for Goshen Valley, Utah County, Utah. Utah Geological Survey, November 2022. http://dx.doi.org/10.34191/ss-171.

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Goshen Valley contains extensive areas of agriculture, significant wetlands, and several small municipalities, all of which rely on both groundwater and surface water. The objective of this study is to characterize the hydrogeology and groundwater conditions in Goshen Valley and calculate a water budget for the groundwater system. Based on the geologic and hydrologic data presented in this paper, we delineate three conceptual groundwater zones. Zones are delineated based on areas of shared hydrogeologic, geochemical, and potentiometric characteristics within the larger Goshen Valley. Groundwater in Goshen Valley resides primarily in the upper basin fill aquifer unit (UBFAU) and lower carbonate aquifer unit (LCAU) hydrostratigraphic units. Most wells in Goshen Valley are completed in the UBFAU, which covers much of the valley floor. The UBFAU is the upper part of the basin fill, which is generally less than 1500 feet thick in Goshen Valley. Important spring discharge at Goshen Warm Springs issues from the LCAU. Relatively impermeable volcanic rocks (VU) occur along much of the upland parts of the southern part of Goshen Valley. Large sections of the southwest part of the Goshen Valley basin boundary have limited potential for interbasin flow. Interbasin groundwater flow is likely at several locations including the Mosida Hills and northern parts of Long Ridge and Goshen Gap in areas underlain by LCAU. Depth to groundwater in Goshen Valley ranges from at or just below the land surface to greater than 400 feet. Groundwater is within 30 feet of the land surface near and north of Goshen, in areas of irrigated pastures and wetlands that extend east toward Long Ridge and Goshen Warm Springs, and to the north towards Genola. Groundwater movement is from upland parts of the study area toward the valley floor and Utah Lake. Long-term water-level change is evident across much of Goshen Valley, with the most significant decline present in conceptual zone 2 and the southern part of conceptual zone 1. The area of maximum groundwater-level decline—over 50 feet—is centered a few miles south of Elberta in conceptual zone 2. Groundwater in Goshen Valley spans a range of chemistries that include locally high total dissolved solids and elevated nitrate and arsenic concentrations and varies from calcium-bicarbonate to sodium-chloride-type waters. Overlap in chemistry exists in surface water samples from Currant Creek, the Highline Canal, and groundwater. Stable isotopes indicate that groundwater recharges from various locations that may include local recharge, from the East Tintic Mountains, or far-traveled groundwater recharged either in Cedar Valley or east of the study area along the Wasatch Range. Dissolved gas recharge temperatures support localized recharge outside of Goshen. Most groundwater samples in Goshen Valley are old, with limited evidence of recent groundwater recharge. An annual water budget based on components of recharge and discharge yields total recharge of 32,805 acre-ft/yr and total discharge of 35,750 acre-ft/yr. Most recharge is likely from interbasin flow and lesser amounts from precipitation and infiltration of surface water. Most discharge is from well water withdrawal with minor spring discharge and groundwater evapotranspiration. Water-budget components show discharge is greater than recharge by less than 3000 acreft/yr. This deficit or change in storage is manifested as longterm water-level decline in conceptual zone 2, and to a lesser degree, in conceptual zone 1. The primary driver of discharge in conceptual zone 2 is well withdrawal. Conceptual zone 3 is broadly in balance across the various sources of recharge and discharge, and up to 1830 acre-ft/yr of water may discharge from conceptual zone 3 into Utah Lake. Minimal groundwater likely flows to Utah Lake from zones 1 or 2.
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Geochemistry, geochronology, mineralogy, and geology suggest sources of and controls on mineral systems in the southern Toquima Range, Nye County, Nevada; with geochemistry maps of gold, silver, mercury, arsenic, antimony, zinc, copper, lead, molybdenum, bismuth, iron, titanium, vanadium, cobalt, beryllium, boron, fluorine, and sulfur; and with a section on lead associations, mineralogy and paragenesis, and isotopes. US Geological Survey, 2003. http://dx.doi.org/10.3133/mf2327c.

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