Дисертації з теми "Ground Water contamination"
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Halstead, John Michael. "Managing ground water contamination from agricultural nitrates." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54787.
Повний текст джерелаPh. D.
Montague, David Joel. "Managing agricultural contamination of ground water: the institutional framework." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43408.
Повний текст джерелаAubin, Eric. "Impact of water table management on ground water contamination by two herbicides." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55410.
Повний текст джерелаThe amount of rainfall received in the first few weeks following herbicide application is crucial in assessing the extent of ground water contamination. In 1992, fewer rainfall events occurred after the application as compared to 1993, so metribuzin leached slowly. In 1992, it appears that subirrigation reduced ground water contamination by a factor of 10 through enhanced degradation and the greater effect of dilution. However, the role of subirrigation in reducing the metribuzin contamination of ground water was negligible in 1993 due to considerable leaching soon after the application.
The second project was conducted in an organic soil in St-Patrice-de-Sherrington (Van Winden farm) where the herbicide prometryn was studied. Surface irrigation with a controlled water table was also used as a water table management system. One experimental unit was used for each of the three treatments (subirrigation, surface irrigation and subsurface drainage).
The herbicide application rate was greater at the Van Winden farm than in the Laurin farm (5.5 kg/ha versus 1.0 kg/ha). However, a higher adsorption coefficient of the organic soil minimized the leaching process. Ground water contamination was less extensive in the organic deposit. The effect of subirrigation in reducing ground water contamination was significant when the water table was shallow. Prometryn degradation was relatively slow during the summer. Moreover, significant amounts of prometryn carried-over into the soil after the winter season, so it appears to be a quite persistent herbicide in our climate.
Anderson, Jacob. "Geochemical Tracers of Surface Water and Ground Water Contamination from Road Salt." Thesis, Boston College, 2013. http://hdl.handle.net/2345/3313.
Повний текст джерелаThe application of road de-icers has lead to increasing solute concentrations in surface and ground water across the northern US, Canada, and northern Europe. In a public water supply well field in southeastern Massachusetts, USA, chloride concentrations in ground water from an unconfined aquifer have steadily risen for the past twenty years. The objectives of this study are to understand spatial and temporal trends in road salt concentrations in order to identify contamination sources and fate. To this end, the methods of this project include field and lab work. Water samples were collected from surface, near-surface, and ground water from March 2012 to March 2013. The other major field data are specific conductance measurements from probes located in three piezometers. In the lab, all samples were analyzed for major ions with ion chromatography analysis. Additionally, trace elements were measured by inductively coupled plasma analysis on a subset of samples. The results of these hydrogeochemical procedures showed several important trends. First, the highest concentrations of sodium and chloride from near-surface samples were located near to roadways. Second, ground water samples taken from glacial sediments contained relatively high concentrations throughout the water column, whereas ground water samples from wetlands had high concentrations only near the surface. Third, there was no clear relationship between pH and cation concentrations. Finally, specific conductance data showed strong seasonal trends near to the surface, whereas values taken from deeper in the aquifer were steadily increasing. Based on these results, it is highly probable that road salt application is the dominate contamination source. The pathways of road salt in the watershed include runoff into surface water and infiltration into the vadose zone and ground water. Road salt appears to preferentially travel through glacial features rather than floodplain features. It is possible that sodium from road salt is sorbed to aquifer sediment and displaces other cations. However, the low values of trace metals suggest that cation exchange is not mobilizing heavy metals. Finally, the increasing specific conductance values deep in the aquifer suggest that road salt is retained within the aquifer and concentrations will likely increase in the future if the current road salt application procedures are continued
Thesis (MS) — Boston College, 2013
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Earth and Environmental Sciences
Hussein, Maged M. "Impact of ground-water contamination on the Great Miami River basin /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu148794815862844.
Повний текст джерелаDay, Stephen Wayne. "Ground water contamination from an abandoned landfill site in Delaware County, Indiana." Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/474188.
Повний текст джерелаElmore, Andrew Curtis. "Monte Carlo simulation of ground water remediation at a Nebraska contamination site." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185706.
Повний текст джерелаUhlman, Kristine, and Janick Artiola. "Nitrate Contamination Potential in Arizona Groundwater: Implications for Drinking Water Wells." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/156932.
Повний текст джерелаThis fact sheet is to be taken from research conducted by Uhlman and Rahman and published on the WRRC web site as: "Predicting Ground Water Vulnerability to Nitrate in Arizona". Funded by TRIF and peer reviewed by ADEQ. It also follows on "Arizona Well Owner's Guide to Water Supply" and also "Arizona Drinking Water Well Contaminants" (part 1 already submitted, part 2 in process).
Arizona's arid environment and aquifer types allow for the persistence of nitrate contamination in ground water. Agricultural practices and the prevalence of septic systems contributes to this water quality concern, resulting in nitrate exceeding the EPA Maximum Contaminant Level (MCL) in several locations across the state. Working with known nitrate concentrations in 6,800 wells across the state, this fact sheet presents maps showing the probability of nitrate contamination of ground water exceeding the MCL. The importance of monitoring your domestic water supply well for nitrate is emphasized.
Beck, Daniel S. "A ground water report on the Fernald, Ohio contamination in the Miami Valley Aquifer." Connect to resource, 1996. http://hdl.handle.net/1811/31770.
Повний текст джерелаWaters, Lois Diane. "Relationships Between Hybrid Poplar Tree Extractives and Ground Water Contamination at a Phytoremediation Site." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31583.
Повний текст джерелаIn 1997, a phytoremediation program began at a creosote-contaminated former railroad tie yard in Oneida, Tennessee with the planting of over 1000 hybrid poplar trees onsite. Creosote, a mixture of hazardous chemicals composed of 85% polycyclic aromatic hydrocarbons (PAH) had entered the site soil and ground water. After planting, a seasonal ground water testing program began that monitored the progress of remediation by measuring the concentration of the 10 predominant PAHs in the contaminant plume: naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, chrysene, and benzo(b)fluoranthene. The concentrations of these compounds steadily decreased over time, but the role the trees played in the remediation was unclear.
In order to gain a clearer understanding of the role the trees played in contaminant remediation, chemical analysis of tree tissue began. It was not known whether the trees were taking up PAH contaminants or their metabolites or if the rhizosphere zone created by the trees simply enhanced the ability of the site microflora to degrade the PAH. The objectives of this research were to (1) develop a suitable method for the chemical analysis of tree tissue collected from a field site, (2) determine if there were any chemicals not usually found in poplar trees that occurred in the trees growing over contamination, (3) determine if bud, bark, and twig tissue differed in their ability to predict ground water contamination, and (4) determine if a spatial correlation existed between the aromatic compounds in the tree tissue and the ground water total PAH plume.
Two types of tree tissue/ground water comparisons were performed: spatial distribution of isoeugenol concentration in tree tissue with spatial distribution of total PAH in ground water over the area of interest; and the spatial distribution of the quantity of aromatic compounds in tree tissue with the spatial distribution of total PAH concentration in ground water. Due to unit discrepancies between the quantities of interest, all comparisons were made on a percentile basis.
Initial tree sampling revealed that several compounds not usually present in poplar trees occurred only in those trees growing over contamination. In the first part of this study, the concentration of one of these chemicals, the substituted phenol isoeugenol, was compared with the concentration of total PAH in ground water from samples collected from February-March 2002. The bark tissue percentiles fell within 20 percentiles of ground water total PAH concentrations in 60% of the study area. The twig tissue showed slightly better agreement, with 67% of the study area differing from ground water by twenty percentiles or less.
The second comparison took place over three sampling events: March 2001, July 2001, and February-March 2002. The number of unique aromatic compounds in bark, bud, and twig tissue was compared with the total PAH concentration in ground water. Twig tissue aromatic compound content was the most accurate predictor of ground water contamination among the tissue types. After excluding those chemicals likely to be interferences from consideration, twig tissue aromatic content agreed with ground water total PAH concentration to within 20 percentiles over 2/3 or more of the study area during each sampling event, suggesting the potential uptake of PAHs or their microbial metabolites as a mechanism of phytoremediation at the site.
Master of Science
Leiter, Maria Louise. "Extent and Sources of Nitrate Contamination of Drinking Water in an Agricultural Watershed in Southwest Ohio." Miami University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1250265194.
Повний текст джерелаSelig, Margot Littman 1961. "The economics of nitrogen fertilizer cutbacks to reduce potential ground water contamination : a case study of selected Arizona crops." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/192071.
Повний текст джерелаReilly, Darren A. "Identification of Local Ground Water Pollution in Northeastern Pennsylvania: Marcellus Flow-back or Not?" Kent State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=kent1397949957.
Повний текст джерелаJohn, David E. "Transport and Survival of Water Quality Indicator Microorganisms in the Ground Water Environment of Florida: Implications for Aquifer Storage and Waste Disposal." [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000155.
Повний текст джерелаCecil, L. DeWayne. "Origin of chlorine-36 in the eastern Snake River Plain aquifer, Idaho, implications for describing ground water contamination near a nuclear facility." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60526.pdf.
Повний текст джерелаJames, Matt. "Detailed characterisation of ground water nitrate/leachate flow in gravelly deposits using EM and GPR methods with particular reference to temporal flow changes." Thesis, University of Canterbury. Geological Science, 2015. http://hdl.handle.net/10092/10270.
Повний текст джерелаGOMES, RAPHAEL F. "Avaliação de compostos orgânicos semi-voláteis em amostras de águas subterrâneas via CG/EM utilizando microextração líquido-líquido dispersivo - DLLME." reponame:Repositório Institucional do IPEN, 2014. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23176.
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Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Naber, Steven John. "Nonlinear least-squares and universal-kriging estimation of source and ground-water parameters for several types of plumes caused by instantaneous contamination releases /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487848531362977.
Повний текст джерелаJohn, David E. (David Eric). "Transport and survival of water quality indicator microorganisms in the ground water environment of Florida [electronic resource] : implications for aquifer storage and waste disposal / by David E. John." University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000155.
Повний текст джерелаDocument formatted into pages; contains 322 pages.
Thesis (Ph.D.)--University of South Florida, 2003.
Includes bibliographical references.
Text (Electronic thesis) in PDF format.
ABSTRACT: Ground water resources are heavily used for drinking water supply and often as a receptacle for waste water. One concern is the possible contamination of wetland areas by ground water receiving septic system infiltration. To investigate this, two tracer studies were performed using the bacteriophage PRD-1 by seeding septic systems adjacent to wetlands with the phage and monitoring migration towards wetland areas. Transport velocities were evaluated based on appearance of tracer in sampling wells at various distances from the injection point. Velocities were estimated to be 0.25 m/d and 0.4 m/d at the two sites. Some retardation with respect to the conservative tracer SF6 was observed, with a factor of about 1.5. Due to dry conditions, the water table was well below surface, so transport of the virus into surface water was not observed. Survival of public-health-related microorganisms in ground water is also a concern.
ABSTRACT: The effects of temperature and total dissolved solids (TDS) on survival of 5 groups of indicator organisms were evaluated in controlled experiments. TDS did not have significant effects on inactivation of these microbes up to 1000 mg/l, but there was indication of reduced inactivation of enterococci at TDS concentrations of 3000 mg/l. Increased temperature consistently resulted in more rapid inactivation. Survival in aquifer and reservoir water samples was also evaluated, and significant effects due to water type, temperature, and pasteurization treatment were observed. Inactivation was more rapid in surface water sources, and pasteurization enhanced survival. For enterococci and DNA coliphage, pasteurization effects were more pronounced in surface water. DNA coliphage and perhaps fecal coliform appeared to be the more-conservative indicator organisms for aquifer injection monitoring.
ABSTRACT: Lastly, it was observed that inactivation rates were considerably slower in pore water of saturated limestone than in the bulk water column of similar water sources and conditions, particularly for enterococci and fecal coliform.
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Li, Xuan. "In Situ Chemical Oxidation Schemes for the Remediation of Ground Water and Soils Contaminated by Chlorinated Solvents." Connect to this title online, 2002. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1023289254.
Повний текст джерелаTitle from first page of PDF file. Document formatted into pages; contains xv, 179 p.; also contains graphics (some col.). Includes abstract and vita. Advisor: Franklin W. Schwartz, Dept. of Geosciences. Includes bibliographical references (p. 172-179).
MINDRISZ, ANA C. "Avaliação da contaminação da água subterrânea de poços tubulares, por combustíveis fósseis, no município de Santo André, São Paulo: uma contribuição à gestão ambiental." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11428.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Amraoui, Nadia. "Étude de l'infiltration dans les sols fins non saturés." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL075N.
Повний текст джерелаBattermann, Astrid. "Mathematical optimization methods for the remediation of ground water contaminations." [S.l.] : [s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=963762184.
Повний текст джерелаSpinola, Eduardo Costa. "Mercúrio na área de disposição final dos resíduos sólidos do munícipio de São Pedro da Aldeia – RJ." Niterói, 2017. https://app.uff.br/riuff/handle/1/4962.
Повний текст джерелаMade available in DSpace on 2017-10-24T14:24:59Z (GMT). No. of bitstreams: 1 Mercúrio na área de disposição final dos resíduos sólidos do Município de São Pedro da Aldeia - R.pdf: 1346116 bytes, checksum: bcb9b68a2545bcaaa2fb66437b33505e (MD5)
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro
Universidade Federal Fluminense. Instituto de Química. Programa de Pós-Graduação em Geoquímica, Niterói, RJ
A água é fator de produção e elemento fundamental para o desenvolvimento dos povos. Com a intensificação do seu uso, a água é encarada como um recurso finito. Isto é causado pelo crescimento da população. Como conseqüência da crescente oferta do lixo gerado por bens de consumo descartáveis e resíduos sólidos industriais diversos. São improvisadas áreas de destino aos resíduos sólidos sem uma infra-estrutura adequada. Essas áreas, freqüentemente acabam se tornando definitivas e gerando uma série de transtornos. Essas áreas, os “lixões”, são fontes do elemento mercúrio (Hg) que é considerado um poluente global com boa mobilidade, encontrado principalmente na água e alimentos aquáticos, capaz de causar disfunções no sistema nervoso deixando a população mundial em constante alerta. Esta poluição restringe o uso da água, devido a problemas ambientais e danos à saúde da população. No município de São Pedro da Aldeia, foram realizadas análises químicas, em água e sedimento em área de “lixão”, medindo a concentração de Hg e alguns outros metais (Fe, Mn e Zn), matéria orgânica, pH, condutividade e sulfeto, com o propósito de quantificar a concentração dos metais e estudar seu comportamento na região.
The water is a factor of production and fundamental element for the development of the peoples. With the intensification of its use, the water becomes faced as a finite resource. This is caused by the population growth. As a consequence of the increasing offer of disposable consumption products garbage and industrial solid residues are generated. Destination areas are improvised to the solid residues often without an appropriate infrastructure. Those areas frequently end if turning definitive and generating a series of upsets. Those areas, the landfills, are sources of the element mercury (Hg) that is considered a global pollutant with good mobility, found mainly in the water and aquatics foods, capable to cause dysfunctions in the nervous system leaving the world population in alert constant. This pollution restricts the use of the water, due to environmental problems and damages to the health of the population. In the municipal district of São Pedro da Aldeia, we realized chemical analyses, in water and sediment in a landfill area, measuring the concentration of Hg and some other metals (Fe, Mn and Zn), organic matter, pH, conductivity and sulfide, with the purpose of quantify the concentration of the metals and to study its behavior in the region.
Álvares, Cyro Martins Bicudo. "Contribuição ao conhecimento do meio físico da região do lixão de São Carlos - SP, através de estudos geológicos, geofísicos, topográficos e químicos." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-16072018-161604/.
Повний текст джерелаFor seventeen years, Sao Carlos\' solid wastes were placed in a gully formed in a sedimentary area, on the Botucatu Formation (friable sandstone and sands), without any form of control to prevent the contamination of the environment and, especially, of the ground water. Thanks to the possibility of contamination of the deep water source, a series of studies have been made in the area since the eighties. These studies were just another attempt, along with severaI others, to increase the knowledge of the environmental conditions surrounding the waste dump area. Being part of a greater project, different sciences were used such as geology, geophysics, topography and chemistry, in order to obtain new elements and a more acurate interpretation to the existing knowledge. Geologicaly, we detected a less hydraulicaly conductive silty sand layers and, probably, silicificated sandstone layers or diabase sill which could protect the deep water sources from being contaminated. Geologic mapping and geophysical techniques such as electric surveys and well logs were performed during the process. Chemically, we evaluated the ground water contamination in relation to the flow\'s direction.
Kazour, Maria. "Active and passive biomonitoring tools for microplastics assessment in two highly polluted aquatic environments : case study of the Seine estuary and the Lebanese coast SOURCES OF MICROPLASTICS POLLUTION IN THE MARINE ENVIRONMENT: IMPORTANCE OF WASTEWATER TREATMENT PLANT AND COASTAL LANDFILL MICROPLASTICS POLLUTION ALONG THE LEBANESE COAST (EASTERN MEDITERRANEAN BASIN): OCCURRENCE IN SURFACE WATER, SEDIMENTS AND BIOTA SAMPLES JUVENILE FISH CAGING AS A TOOL FOR ASSESSING MICROPLASTICS CONTAMINATION IN ESTUARINE FISH NURSERY GROUNDS IS BLUE MUSSEL CAGING AN EFFICIENT METHOD FOR MONITORING ENVIRONMENTAL MICROPLASTICS POLLUTION?" Thesis, Littoral, 2019. http://www.theses.fr/2019DUNK0544.
Повний текст джерелаPlastic fabrication is increasing worldwide in response to daily human demands. This mass production is linked to the immense plastic marine litter found all around the world: each synthetic material is meant to find its way back into the aquatic systems. Anthropogenic pressure and the immense human population, the lack of appropriate plastic treatment process and the growing industrial activities advocate their presence in the aquatic environments. These plastics are then found in the form of microplastics (microscopic particle with a size < 5 mm) observed in the water, in the sediments and are prone to be ingested by various marine organisms along the trophic chain. This thesis focuses on (1) assessing microplastics sources and input into the aquatic environment and their occurrence in biota, and (2) to test the feasibility of using transplanted organisms (caging) for monitoring microplastics pollution in the marine coastal environment. Two coastal areas highly impacted by anthropogenic pressures were studied: Le Havre in France and the Lebanese coast. For the former, the role of a municipal wastewater treatment plant (WWTP) effluent and an abandoned coastal landfill as pathways for microplastics (MPs) input into the marine environment was assessed. MPs were first analyzed in raw sewage influent, sludge and effluent samples, and their fate was studied along a distance gradient from the WWTP in three matrices: surface water, sediments and wild mussels (Mytilus spp). MPs were found in all matrices with a decreasing abundance from the effluent. Strong MPs abundances (higher than those found near the WWTP effluent) were observed in the vicinity of the coastal landfill suggesting its importance as a MPs entry route into the marine coastal environment. Whereas for the Lebanese coast, we evaluated for the first time the MPs pollution in the seawater, sediments and two important seafood species (one pelagic fish: Engraulis encrasicolus and one bivalve: Spondylus spinosus). Results showed different patterns of MPs concentration in the analyzed matrices. The occurrence of MPs in the biota was high (83.4% and 86.3% in anchovies and spiny oysters, respectively). These results highlighted the high MPs pollution found in the Levantine Basin in comparison to other Western Mediterranean regions. In addition, the obtained results indicate the potential contribution of coastal landfills to this pollution. Most often microplastics studies involve collection of organisms’ samples from natural populations. In this thesis, we tested the feasibility of using transplanted organisms (caging) for monitoring microplastics’ pollution in the marine coastal environment. We developed caging experiments with juvenile European Flounder, Platichthys flesus, in estuarine nursery grounds and blue mussels, Mytilus edulis, in coastal marine environment. For each species, the abundance and characteristics (shape, size, color and type of polymers) of MPs ingested by caged individuals are compared with those ingested by wild individuals collected at the same site and with those found in their surrounding environment (surface water and sediments). Our results suggest that transplanted organisms (caging) may be a promising tool for MPs biomonitoring making monitoring more reliable with an accurate assessment of the biological effects of MPs over a predetermined exposure period
Gao, Fuchun. "Waveform tomography and its application at a ground water contamination site." Thesis, 2004. http://hdl.handle.net/1911/18630.
Повний текст джерелаMelo, Armindo Jorge Alves de. "Assessment of pesticide contamination in ground water and vegetables using environment friendly methodologies." Doctoral thesis, 2012. https://repositorio-aberto.up.pt/handle/10216/71928.
Повний текст джерелаMelo, Armindo Jorge Alves de. "Assessment of pesticide contamination in ground water and vegetables using environment friendly methodologies." Tese, 2012. https://repositorio-aberto.up.pt/handle/10216/71928.
Повний текст джерелаEvelyne, Rita J. "Evaluation of Btex Contamination in Bengaluru Groundwater and Remediation of Contaminated Water Samples." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4602.
Повний текст джерелаSelig, Margot Littman. "The economics of nitrogen fertilizer cutbacks to reduce potential ground water contamination : a case study of selected Arizona crops /." 1992. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1992_520_sip1_w.pdf&type=application/pdf.
Повний текст джерелаŠrot, Martin. "Problematika farmak v podzemních vodách." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-352542.
Повний текст джерелаMakgoka, Seretloane Japhtaline. "Comparison of water quality between sources and between selected villages in the Waterberg District of Limpopo Province; South Africa: with special reference to chemical and microbial quality." Thesis, 2005. http://hdl.handle.net/10386/91.
Повний текст джерелаWater and sanitation inadequacy is still an environmental health challenge in several regions worldwide and a billion people lack access to safe water, while 2.4 billion people have inadequate sanitation [2]. Assessment of water quality by its chemistry includes measures of elements and molecules dissolved or suspended in water. Commonly measured chemical parameters include arsenic, cadmium, calcium, chloride, fluoride, total hardness, nitrate, and potassium [16]. Water quality can also be assessed by the presence of waterborne microorganisms from human and animals’ faecal wastes. These wastes contain a wide range of bacteria, viruses and protozoa that may be washed into drinking water supplies [21]. Three villages were selected for water quality analysis, based on their critical situation regarding access to water and sanitation: namely, Matlou, Sekuruwe and Taolome villages, situated in the Mogalakwena Local Municipality within the Waterberg district of the Limpopo Province, South Africa. A proposal was written to the Province of North Holland (PNH) and was approved for funding to start with the implementation of those projects, with 20% of each village’s budget allocated for water quality research [26]. This was a cross sectional, analytical study to investigate the chemical and microbial quality of water in Matlou, Sekuruwe and Taolome villages. The study was also conducted to explore methods used by household members to store and handle water in storage tanks. Water samples were collected and analysed according to the standard operating procedures (SOPs) of the Polokwane Municipality Wastewater Purification Plant in Ladanna, Polokwane City of South Africa. The questionnaire used was adopted from the one used for cholera outbreak in the Eastern Cape Province of South Africa. Results show that water from all sources in all the villages had increased total hardness concentration. Water from the borehole in Matlou village had increased number of total coliform bacteria. There were increased total and faecal coliform bacteria in storage tanks samples from Matlou village. Water samples from reservoirs in Sekuruwe and Taolome villages did not test positive for any microbial contamination. Water from xiv informally connected yard taps in Sekuruwe village had increased total coliform bacteria, while increased total and faecal coliforms were found in households’ storage tanks. Water samples from communal taps in Taolome village had minimal number of total coliform bacteria, while water from storage tanks had both increased total and faecal coliform bacteria. Matlou village was the only place with increased nitrate concentration at the households’ storage tanks. While all the villages had microbial contamination, Taolome village had the least number of coliform bacteria in water samples from households’ storage tanks as compared to Matlou and Sekuruwe villages. It is concluded that water from sources supplied by the municipalities are safe to be consumed by humans while water from informally connected taps and households’ storage tanks are not safe to be used without treatment. It is recommended that a health and hygiene education package be prepared for all the villages, so that handling of water from the main source into their storage tanks can be improved. Secondly, it is recommended that water in all sources be treated for total hardness and water in storage tanks in Matlou village be treated for nitrate. Thirdly, it is recommended that water be accessed everyday of the week, so that people do not use unsafe water supplies.
The Province of North Holland, Netherlands.
"A preliminary ranking and evaluation method for determining the ground-water contamination potential of closed landfills [electronic resource] / by Catherine M. Böhlke." 1989. http://purl.fcla.edu/fcla/dl/SF00000084.jpg.
Повний текст джерела"Relationship of karstification to ground-water quality [electronic resource] : a study of sinkholes as contamination pathways in Brandon Karst Terrain, Florida / by Jian Chen." 1993. http://purl.fcla.edu/fcla/dl/SF00000087.jpg.
Повний текст джерелаVergunst, Thomas Maarten. "The potential for groundwater contamination arising from a lead/zinc mine tailings impoundment." 2006. http://hdl.handle.net/10413/3513.
Повний текст джерелаThesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2006.
Battermann, Astrid [Verfasser]. "Mathematical optimization methods for the remediation of ground water contaminations / vorgelegt von Astrid Battermann." 2000. http://d-nb.info/963762184/34.
Повний текст джерелаMoritz, Anja Miriam. "Establishing baseline concentration and δ¹³C signature of methane in shallow ground waters of the St. Lawrence Lowlands, QC, Canada: A tool for determining shale gas contamination". Thesis, 2014. http://spectrum.library.concordia.ca/978420/1/Moritz_MSc_S2014.pdf.
Повний текст джерелаEdwards, Jamie Joyce. "Building the capacity for watershed governance." Thesis, 2020. http://hdl.handle.net/1828/11727.
Повний текст джерелаGraduate