Natural Arsenic in Groundwaters of Latin America: Proceedings of the International Congress on NaturalArsenic in Groundwaters of Latin America, Mexico ... 20-24 June 2006 (Arsenic in the Environment)

About the book series......Page 8 Editorial board......Page 10 Table of Contents......Page 14 List of contributors......Page 20 Acknowledgements......Page 38 Editors' foreword......Page 40 Section I Regional introduction and overview......Page 42 CHAPTER 1 Occurrence, health effects and remediation of arsenic in groundwaters of Latin America......Page 44 CHAPTER 2 The presence of arsenic in drinking water in Latin America and its effect on public health......Page 58 Section II Arsenic occurrence and genesis in sedimentary and hard-rock aquifers......Page 72 CHAPTER 3 Arsenic in groundwater and sediments from La Pampa province, Argentina......Page 76 CHAPTER 4 Arsenic hydrogeochemistry in groundwater from the Burruyacú basin, Tucumán province, Argentina......Page 88 CHAPTER 5 Mineralogical study of arsenic-enriched aquifer sediments at Santiago del Estero, Northwest Argentina......Page 102 CHAPTER 6 Intermediate to high levels of arsenic and fluoride in deep geothermal aquifers from the northwestern Chaco-Pampean plain, Argentina......Page 110 CHAPTER 7 The origin of arsenic in waters and sediments from Papallacta lake area in Ecuador......Page 122 CHAPTER 8 Arsenic contamination, speciation and environmental consequences in the Bolivian plateau......Page 132 CHAPTER 9 Using GIS to define arsenic-anomalous catchment basins considering drainage sinuosity......Page 142 CHAPTER 10 Natural arsenic groundwater contamination of the sedimentary aquifers of southwestern Sébaco valley, Nicaragua......Page 150 CHAPTER 11 Arsenic and water quality of rural community wells in San Juan de Limay, Nicaragua......Page 164 CHAPTER 12 Volcanic arsenic and boron pollution of Ilopango lake, El Salvador......Page 170 CHAPTER 13 The abundance of natural arsenic in deep thermal fluids of geothermal and petroleum reservoirs in Mexico......Page 186 CHAPTER 14 Development of a geographic information system for Zimapán municipality in Hidalgo, Mexico......Page 196 CHAPTER 15 Determining the origin of arsenic in the Lagunera region aquifer, Mexico using geochemical modeling......Page 204 CHAPTER 16 Arsenic mobilization in aquatic sediments of an impacted mining area, north-central Mexico......Page 212 CHAPTER 17 Contamination of drinking water supply with geothermal arsenic in Los Altos de Jalisco, Mexico......Page 220 CHAPTER 18 Geogenic arsenic in an Australian sedimentary aquifer: Risk awareness for aquifers in Latin American countries......Page 234 CHAPTER 19 Arsenic in a Triassic sandstone aquifer, Castellón, Spain......Page 246 CHAPTER 20 Arsenic distribution in the groundwater of the Central Gangetic plains of Uttar Pradesh, India......Page 256 CHAPTER 21 Temporal variations of groundwater arsenic concentrations in southwest Bangladesh......Page 266 Section III Analytical methods for arsenic and laboratory studies......Page 274 CHAPTER 22 Rapid, clean and low-cost assessment of inorganic and total arsenic in food by visible and near-infrared spectroscopy......Page 276 CHAPTER 23 Infield detection of arsenic using a portable digital voltameter, PDV6000......Page 286 CHAPTER 24 The use of synchrotron micro-X-ray techniques to determine arsenic speciation in contaminated soils......Page 296 CHAPTER 25 Arsenic speciation study using X-ray fluorescence and cathodic stripping voltammetry......Page 306 CHAPTER 26 Dissolution kinetics of arsenopyrite and its implication on arsenic speciation in the environment......Page 314 Section IV Arsenic in soil, plants and food chain issues......Page 322 CHAPTER 27 Geogenic enrichment of arsenic in histosols......Page 326 CHAPTER 28 Sorption and desorption behavior of arsenic in the soil......Page 336 CHAPTER 29 Effect of wastewater irrigation on arsenic concentration in soils and selected crops in the state of Hidalgo, Mexico......Page 344 CHAPTER 30 Arsenic determination in soils from a mining zone in the eastern Pyrenees, Catalonia (Spain)......Page 352 CHAPTER 31 Bioavailability of arsenic species in food: Practical aspects for human health risk assessments......Page 360 CHAPTER 32 Determination of arsenic content in seafood products in the school meals distribution program, region VII, Chile ......Page 368 CHAPTER 33 Arsenic contamination from geological sources in environmental compartments in a pre-Andean area of Northern Chile......Page 376 CHAPTER 34 Total arsenic content in vegetables cultivated in different zones in Chile......Page 386 CHAPTER 35 Assimilation of arsenic into edible plants grown in soil irrigated with contaminated groundwater......Page 392 CHAPTER 36 Investigation of arsenic accumulation by vegetables and ferns from As-contaminated areas in Minas Gerais, Brazil......Page 400 CHAPTER 37 Arsenic in plant samples from a contaminated mining area in the eastern Pyrenees, Catalonia (Spain)......Page 406 CHAPTER 38 Soil-to-leaf transfer factor for arsenic in peach (Prunus persica L.)......Page 412 CHAPTER 39 Arsenic uptake and distribution in broccoli, cauliflower and radish plants grown on contaminated soil......Page 420 CHAPTER 40 Arsenic mobility in the rhizosphere of the tolerant plant......Page 428 Section V Toxicology and metabolism......Page 436 CHAPTER 41 Survey of arsenic in drinking water and assessment of the intake of arsenic from water in Argentine Puna......Page 438 CHAPTER 42 Chronic arseniasis in El Zapote, Nicaragua......Page 450 CHAPTER 43 Transfer of arsenic from contaminated dairy cattle drinking water to milk (Córdoba, Argentina)......Page 460 CHAPTER 44 Molecular mechanisms of arsenic-induced carcinogenesis......Page 468 CHAPTER 45 Early signs of immunodepression induced by arsenic in children......Page 476 CHAPTER 46 Evaluation of human arsenic contamination in the district of Santa Bárbara, Minas Gerais, Brazil......Page 488 CHAPTER 47 Effects of fluoride and arsenic on the central nervous system......Page 494 CHAPTER 48 Neurotoxicity of arsenic......Page 500 CHAPTER 49 Mouse liver cytokeratin 18 (CK18) modulation by sodium arsenite......Page 508 CHAPTER 50 Effects of selenium deficiency on diabetogenic action of arsenite in rats......Page 514 CHAPTER 51 Histological characteristics of sural nerves in rats exposed to arsenite......Page 522 CHAPTER 52 Arsenic-induced p53-DNA binding activity in epithelial cells......Page 530 CHAPTER 53 Microbial volatilization of arsenic......Page 536 Section VI Treatment and remediation of arsenic-rich groundwater......Page 542 CHAPTER 54 Feasibility of arsenic removal from contaminated water using indigenous limestone......Page 546 CHAPTER 55 Characterization of Fe-treated clays as effective As sorbents......Page 552 CHAPTER 56 Natural red earth: An effective sorbent for arsenic removal from Sri Lanka......Page 562 CHAPTER 57 Adsorption of As(V) onto goethite: Experimental statistical optimization......Page 568 CHAPTER 58 Subsurface treatment of arsenic in groundwater—experiments at laboratory scale......Page 578 CHAPTER 59 Two-step in situ decontamination of mine water enriched with arsenic and iron......Page 588 CHAPTER 60 Arsenic removal from groundwater using ferric chloride and direct filtration......Page 596 CHAPTER 61 The use of iron-coated LECA for arsenic removal from aqueous solutions under batch and flow conditions......Page 606 CHAPTER 62 Polymer-supported Fe(III) oxide particles: An arsenic-selective sorbent......Page 612 CHAPTER 63 Application of coagulation-filtration processes to remove arsenic from low-turbidity waters......Page 622 CHAPTER 64 Arsenic removal from groundwater by coagulation with polyaluminum chloride and double filtration......Page 630 CHAPTER 65 A simple electrocoagulation set up for arsenite removal from water......Page 636 CHAPTER 66 Arsenic in the environment and its remediation by a novel filtration method......Page 646 CHAPTER 67 Arsenic removal by solar oxidation in groundwater of Los Pereyra, Tucumán province, Argentina......Page 656 CHAPTER 68 Removal of arsenic from groundwater using environmentally reactive iron nanoparticles......Page 666 CHAPTER 69 Phytoremediation of arsenic by sorghum (Sorghum biocolor) udner hydrponics......Page 684 CHAPTER 70 Potential use of sedges (Cyperaceae) in arsenic phytoremediation......Page 690 CHAPTER 71 Filter development from low cost materials for arsenic removal from water......Page 698 CHAPTER 72 Arsenic removal from water of Huautla, Morelos, Mexico using capacitive deionization......Page 706 CHAPTER 73 Low-cost technologies for arsenic removal in the Chaco-Pampean plain, Argentina......Page 718 Section VII Innovative and sustainable options for arsenic mitigation: Some experiences......Page 726 CHAPTER 74 Arsenic-safe aquifers as a socially acceptable source of safe drinking water—What can rural Latin America learn from Bangladesh experiences?......Page 728 CHAPTER 75 Mitigation actions respond to arsenic exposure in Brazil......Page 740 Index I: Subject index......Page 746 Index II: Localities, stratigraphic units, tectonic and structural elements......Page 776 Author index......Page 782

Groundwater resources naturally contain high levels of arsenic in many parts of the world. Over the last two decades, the As-containing groundwater in South-East Asia has received much attention, but the situation is just as crucial in Latin America, where the number of studies is still relatively low, and the extent and severity of As-exposure in the populations has yet to be fully evaluated. This book aims to promote knowledge of the occurrence and genesis of As-rich groundwater in Latin America. It deals with constraints on the mobility of As in groundwater, As-uptake from soil and water by plants, As-propagation through the food chain, human health impacts, and As-removal technologies. Case studies are presented from Argentina, Bolivia, Chile, Ecuador, El Salvador, Mexico, Nicaragua and Peru, amongst others, and are viewed against the background of experience from other world regions. The book is a state-of-art overview of arsenic research in Latin America. It aims to create interest within the Latin American countries affected by the presence of arseniferous aquifers and to increase awareness among administrators, policy makers and company executives. It will also serve to inform the international scientific community, and improve international cooperation on arsenic in groundwater.