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Dissertations / Theses on the topic 'Lead pollution'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Klaminder, Jonatan. "The fate of airborne lead pollution in boreal forest soils." Doctoral thesis, Umeå : Department of Ecology and Environmental Science, Umeå University, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-631.

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2

El-Rais, Mahmoud Abdussamad. "Determination of cadmium and lead in the ppb range by atomic absorption." Thesis, University of Salford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360479.

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3

Rivas-Urraca, Cristina. "Environmental speciation of tin and lead by HPLC-ICP-MS." Thesis, University of Plymouth, 1996. http://hdl.handle.net/10026.1/459.

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New methodologies have been developed for the determination of organotin and organolead compounds in environmental samples. Several high performance liquid chromatographic separations of organotin compounds have been tested and the best system (cation-exchange chromatography with methanol and a citrate buffer) employed for the determination of tributyltin (TBT), triphenyltin (TPhT), dibutyltin (DBT) and monobutyltin (MBT) in environmental samples. The coupling between high performance liquid chromatography (HPLQ and the inductively coupled plasma-mass spectrometer (ICP-MS) for this application

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4

Flory, Quentin M. "Phytoremediation of a lead contaminated soil by selected green plants." Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1294243.

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As human populations grow worldwide, there is an increasing need to address the problems associated with the creation and disposal of wastes. Although a variety of recent technologies have been shown to be somewhat effective in the remediation of metal contaminated soils, e.g., chemical extraction and stabilization, they are often expensive and labor-intensive. Additionally, these technologies can impart detrimental effects on the chemical and physical properties of the soil under treatment. As an alternative, the less expensive, more environmentally benign use of green plants as tools for the

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5

Eastwood, Ian Wynne. "Pollution of soils by lead and its uptake and pathways in the ecosystem." Thesis, Sheffield Hallam University, 1987. http://shura.shu.ac.uk/19593/.

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The thesis reviews literature relating to lead in the environment with particular reference to the distribution and pathways of lead in the soil and plant ecosystem. Methods of conducting large area soil surveys and assessing the distribution of lead and other heavy metals including cadmium, copper and zinc are also examined. A survey was conducted over a 370 km2 area of North East Derbyshire, England. Maps showing the distribution of the metals reveal anomalously high concentrations related in many instances to past industrial activity. A simple reliable and rapid acid digestion procedure was

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6

Benkhayal, A. A. "Determination of some metals in mineralogical and environmental samples with particular reference to lead and zinc." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234588.

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7

Hee, Calvin K. "Field scale phytoremediation trials of lead and cadmium-contaminated soil." Virtual Press, 2005. http://liblink.bsu.edu/uhtbin/catkey/1314328.

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There is an ever-increasing need to address problems associated with the creation and disposal of wastes which result from human activities. Pb and Cd contamination is a common problem at many abandoned and uncontrolled commercial and industrial sites. Phytoremediation is one technology that can be employed to remove metals such as Pb from the soil. This study investigated the effectiveness of several plant and soil treatments on the uptake and retention of Pb and Cd by vegetation from contaminated soil at a Superfund site. Field plots were established and plant treatments included a mixture o

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8

Mager, Edward Michael. "Interactions Between Water Chemistry and Waterborne Lead Exposure to Freshwater Organisms." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/666.

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This dissertation characterizes the influences of water chemistry on the acute toxicity of lead (Pb) to two of the long-standing sentinel test organisms commonly employed by the United States Environmental Protection Agency (USEPA), the fathead minnow (Pimephales promelas) and daphnid (Ceriodaphnia dubia), for parameterization of an acute Pb Biotic Ligand Model (BLM). In addition, a toxicogenomic approach was employed to identify genes that might serve as molecular markers of Pb exposure and long-term effects, as well as provide new insights as to the underlying toxic mechanisms of chronic Pb

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9

Cartró-Sabaté, Mar. "Amazo’n’oil: exposure to oil and lead for Amazonian wildlife." Doctoral thesis, Universitat Autònoma de Barcelona, 2018. http://hdl.handle.net/10803/664263.

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Los impactos de las actividades petroleras en los ecosistemas y las poblaciones humanas de los bosques tropicales apenas se han evaluado, aunque aproximadamente el 30% de los bosques tropicales del mundo se superponen con reservas de hidrocarburos. Esta tesis doctoral tiene por objetivo explorar uno de los impactos potenciales de la actividad petrolera en los bosques tropicales que aún no había sido estudiado: la ingesta de suelos y agua contaminados por petróleo por parte de la fauna amazónica. Los pobladores indígenas que habitan una concesión petrolera remota en la Amazonía peruana fueron

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10

Cutajar, Josephine-Anne. "Characterisation of aerosols using carbon and lead stable isotopes and trace elements." Thesis, Open University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339859.

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11

Cotter-Howells, Jane. "Lead minerals in soils contaminated by mine-waste : implications for human health." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/8913.

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12

Adams, Kim Marie. "The inorganic pollution of the Franschhoek River : sources and solutions." Thesis, University of the Western Cape, 2011. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3321_1351864435.

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<p>The aim of the study was to quantify the extent of inorganic chemical pollution of the Franschhoek River and draw relationships between contaminants in water, sediment and plants. The invasive Acacia mearnsii and Salix babylonica and indigenous Brabejum stellatifolium species were chosen as biomonitors due to their wide spread distribution along the river and their apparent ability to accumulate heavy metals. The sites chosen allowed for comparison of the river quality upstream with that of the river further down stream as it meandered through residential, agricultural and recreational area

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13

Yocum, Susan Marie. "Effects of low level lead and cadmium on reproduction in Peromyscus leucopus and a study of lead concentration in small mammals from old orchards." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43073.

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Lead and cadmium frequently occur together as contaminants in polluted environments such as roadsides, urban areas, mines, and smelters. Few studies have been conducted to examine the possible interactive effects these metals may have on reproduction of wild species. The first part of this study was directed toward examining the effects of low level dietary lead and cadmium on reproduction in Peromyscus Jeucopus. Two laboratory studies were conducted. Treatment with combinations of 0, 1 or 4 Î¼/g lead acetate and/or cadmium chloride was found to have no effect on overall health or repro

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14

Morali, Nihan. "Investigation Of Zinc And Lead Removal From Aqueous Solutions Using Clinoptilolite." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12606983/index.pdf.

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Natural zeolites, especially clinoptilolite, have the ability of removing certain cations from wastewater by utilizing ion exchange and adsorption. In this study, clinoptilolite originated from Bigadi&ccedil<br>, Balikesir deposit was investigated in its natural and conditioned form for its effectiveness in removing Zn2+ and Pb2+ ions from aqueous solutions. In addition, relevant mechanisms involved in heavy metal removal by clinoptilolite were examined in this study. Throughout this work, equilibrium and kinetic studies were performed with as-received and conditioned clinoptilolite, having

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15

Kaya, Levent. "Biosortion Sites For Lead [pb (ii)] In Phanerochaete Chrysosporium." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12605494/index.pdf.

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Biosorption is a phenomenon involving the mechanisms that basically mediate heavy metal tolerance of microorganisms as well as sequestration of heavy metals from environment. Different classes of microorganisms have different biosorption capacities, as a result of the differences in composition and types of functional groups found on cell surfaces. The present study was undertaken to identify the molecular mechanisms for lead [Pb(II)] biosorption in the white-rot fungus, Phanerochaete chrysosporium. The methodology involved selective blocking of the functional groups known to participate in he

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16

Wiesen, Liesl M. "Blood lead concentrations in the cat population of Tampa, FL." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001550.

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17

Eades, Lorna Joan. "Radiochronological investigations of the pollution history of lead and other heavy metals in Scottish freshwater loch sediments." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/13758.

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18

Ndambuki, J. M., and S. Rwanga. "Assessment of air pollution in residential areas : a case study of Kinondoni Municipality, Tanzania." Journal for New Generation Sciences, Vol 6, Issue 1: Central University of Technology, Free State, Bloemfontein, 2008. http://hdl.handle.net/11462/496.

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Published Article<br>Air pollution, just like any other type of pollution, produces harmful effects to man and his environment. In spite of knowing this, many less industrialised countries of the world have no air quality monitoring strategies in place. Consequently, documented evidence of air pollution studies in such countries is scarce. This is the case in Tanzania. This scenario is made worse by lack of scientific tools which could aid in identifying air pollution-prone areas with a view to aiding town planners in locating safe sites for schools, hospitals and residential areas as well as

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19

White, Kevin. "The nature and effects on the environment of heavy metal pollution from a lead smelter near Matlock, Derbyshire." Thesis, Kingston University, 1991. http://eprints.kingston.ac.uk/20559/.

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A number of continuous and retrospective passive monitoring techniques have been employed in this study to carry out a comprehensive assessment of heavy metal dispersion and deposition from a secondary lead smelting complex. The principal period of monitoring was designed to coincide with contemporaneous changes in the operation of the complex involving, the incorporation of new smelting and refining centres. The initial phase of the sampling programme began with a preliminary multi-element survey to establish the degree of communality between different metals in smelter emissions and their in

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20

Torrezani, Nelissa Camargo. "Avaliação da presença de chumbo (Pb) em espécies de peixes associada à qualidade ambiental da Bacia do Ribeirão Cambé (Londrina/PR)." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1390.

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CAPES<br>O chumbo é um elemento não-essencial, bioacumulador, com propriedades altamente tóxicas e responsável por efeitos agudos e crônicos nos seres vivos. Em concentrações elevadas podem promover danos às comunidades aquáticas, modificando suas estrutura e distribuição. O presente estudo verificou o grau de vulnerabilidade ambiental da Bacia do Ribeirão Cambé, a partir da avaliação da presença de chumbo nas espécies de peixes mais abundantes, por meio da técnica analítica de Espectrometria de Absorção Atômica com Atomizador em Forno de Grafite (GF AAS), assim como, pelos parâmetros da estru

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21

Sobieralski, Joseph Bernard. "TAXATION OF UNITED STATES GENERAL AVIATION." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/dissertations/502.

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General aviation in the United States has been an important part of the economy and American life. General aviation is defined as all flying excluding military and scheduled airline operations, and is utilized in many areas of our society. The majority of aircraft operations and airports in the United States are categorized as general aviation, and general aviation contributes more than one percent to the United States gross domestic product each year. Despite the many benefits of general aviation, the lead emissions from aviation gasoline consumption are of great concern. General aviation

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22

Kruger, Anne-Liese. "Accumulation and toxicity of lead in soil along the road verges in the City of Cape Town." Thesis, Cape Peninsula University of Technology, 2007. http://hdl.handle.net/20.500.11838/788.

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Thesis (MTech (Environmental Health)--Cape Peninsula University of Technology, 2007<br>The widespread use of lead (Pb) and especially Pb from vehicular emissions arising from lead additives in petrol has resulted in high levels of this metal found in various soil samples taken along the road verges of Cape Town CBD. The accumulation of lead was investigated in roadside surface soil by collecting soil samples at various sites along the three major highways (N7, N2, N1), approximately three metres from the road verges and at a depth of approximately 5 cm for a period of 12 months. After d

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23

Johansson, Camilla. "Geokemin inom osorterade cirklar : Analys av tungmetallers distribution inom jordprofiler tagna från Abiskoområdet, nordvästra Sverige." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-55452.

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The Arctic region appears as a pristine remote environment, yet there is increasing evidence that it is greatly impacted by pollution such as lead (Pb) and mercury (Hg). In this environment deposition of Hg has increased threefold since the last industrial revolution. In this study five cryosolic soil profiles within non-sorted circles (NSC) in the Abisko region, northwest of Sweden, has been analyzed to improve our understanding regarding how pollutants are distributed within such type of soil. The soil samples have been analyzed with the use of X-ray fluorescence analysis (XRF), for the meas

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24

Mourne, Richard William. "Lead-210 as a tracer for acidic deposition in areas of complex topography." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/10602.

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This thesis reports an investigation into methods of determining the long term deposition field for atmospheric aerosols in areas of complex topography using the soil inventories of atmospherically derived radionuclides. Measurements of the radionuclides ²¹⁰Pb, ¹³⁷Cs, ¹³⁴Cs and ⁷Be in vegetation and soil have been made at five mountain locations in northern Britain. A description of the field sampling procedure, sample processing and y-ray analysis is given. Loss-on-ignition experiments to determine the organic fraction of sampled soils were also conducted on selected samples. The presence of

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25

Martyn, Kevin P. "How Mature Capitalism Turns Pollution into Diamonds: Malagnogenesis and the Reverse-Engineering of Harm into Risk." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6540.

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In recent years, there has been a great deal of debate about the pervasiveness and persistence of neoliberal thinking. In the context of the post-2008 ‘great recession’ the resilience of neoliberalism is particularly confounding. To begin to unravel the ways in which neoliberalism is situated relative to risk, this study identifies an increasingly important neoliberal knowledge practice: malagnogenesis. Malagnogenesis is proposed herein as the production of ignorance that normalizes harm for and amongst marginalized populations. To shed light on the phenomena of malagnogenesis, this study inve

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26

Nwachukwu, Olayinka Ibiwumi. "The use of organic materials as amendments in the remediation of soils contaminated by lead, copper and zinc." Thesis, Connect to e-thesis, 2007. http://theses.gla.ac.uk/847/.

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27

Chu, Thi Thu Ha, Phuong Hanh Nguyen, Thi Hien Nguyen, et al. "Effect of fertilizer on lead (Pb) accumulation ability of Polygonum hydropiper L." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A32718.

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Polygonum hydropiper L. was cultivated on alluvial soil (Pb = 2.6 mg/kg, dry weight) and Pb contaminated soil (Pb = 1,380 mg/kg dry weight) without and with amendment of 2 g organic fertilizer/kg soil and 2.5; 5.0; 10.0 g NPK fertilizer/1kg soil. After 45 days of cultivation, the growth in height and biomass of P. hydropiper in Pb contaminated soil without amendment of fertilizer was lower than that in alluvial soil, but the Pb content in the above-ground part of the P. hydropiper was higher. In the formula 4, on Pb contaminated soil (Pb = 1,380 mg/kg dry weight), when amending 2 g of microbio

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28

Pham, Thi Thao Trang, Thi Phuong Phan, Khanh Linh Nguyen, et al. "Status of heavy metal (Pb, Cd) pollution in agricultural soil in Dong Mai lead recycling craft village in Hung Yen, Vietnam." Technische Universität Dresden, 2016. https://tud.qucosa.de/id/qucosa%3A32639.

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The newly planned lead recycling zone in Dong Mai village has been operating with primary treatment systems using lime to neutralize acid in wastewater is a good sign for the local environment, yet the real problem that needs further attention and proper solutions is the accumulation of heavy metals typically lead (Pb) and cadmium (Cd) in agricultural land near the old Pb recycling area. In this context, 27 soil samples were collected and analyzed by AAS method to assess the situation and the quality of the agricultural soil. The results showed that the levels of Cd in the soil were still in a

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29

Ginnever, Rhoda C. "Soil and plant contents of lead and other trace elements with special reference to the influences of parent rock and pollution." Thesis, Aberystwyth University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324309.

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30

Borghesi, Fabrizio <1969&gt. "Environmental Pollution and Hunting: Exposure of Birds to Metals in their Trophic Areas, and of Humans to Lead in Game Birds." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7547/1/borghesi_fabrizio_tesi.pdf.

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This doctorate is focused on birds and their relationships with trace elements (MTEs). The Mediterranean coast hosts millions migratory birds every year. However, Mediterranean countries are among the most influenced in the world by human pressure. There is a strong impulse by GOs and NGOs operating in the European Union to improve methods and standardization in studies on contaminants involving birds. Birds are potential biomonitors of change in the environment and feathers has proven to be a very informative tool. On the other hand, there is the need to improve methods in order to avoid er

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31

Peres, Jayme Augusto [UNESP]. "Bovinos como bioindicadores da poluição ambiental por chumbo na região de Guarapuava -PR." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/103770.

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Made available in DSpace on 2014-06-11T19:32:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-11-16Bitstream added on 2014-06-13T18:44:20Z : No. of bitstreams: 1 peres_ja_dr_botfmvz.pdf: 1119647 bytes, checksum: 1df6e1d4624f1f5dafcaaad991b4c80c (MD5)<br>Outros<br>O chumbo (Pb) é um metal pesado naturalmente encontrado na natureza, principalmente sob a forma de galena. Suas concentrações consideradas toleráveis são suplantadas pela ação antropogênica, associada à exploração agropecuária inadequada e/ou deposição de resíduos químicos gerados por indústrias poluidoras do meio ambiente.

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Vallelonga, Paul Travis. "Measurement of Lead Isotopes in Snow and Ice from Law Dome and other sites in Antarctica to characterize the Lead and seek evidence of its origin." Thesis, Curtin University, 2002. http://hdl.handle.net/20.500.11937/2580.

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Human activities such as mining and smelting of lead (Pb) ores and combustion of alkyllead additives in gasoline have resulted in extensive global Pb pollution. Since the late 1960's studies of polar ice and snow have been undertaken to evaluate the extent of anthropogenic Pb emissions in recent times as well as to investigate changes in anthropogenic Pb emissions in the more distant past. The polar ice sheets have been used to investigate Pb pollution as they offer a long-term record of human activity located far from pollution sources and sample aerosol emissions on a hemispheric scale. Lead

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33

Gross, Benjamin. "Lithogenic, Marine and Anthropogenic Aerosols in an Ice Core from the Saint Elias Mountains, Yukon, Canada: Lead-Aerosol Provenance and Seasonal Variability." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/GrossB2008.pdf.

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34

Sandone, Gene James. "Evaluation of erythrocyte amino levulinic acid dehydratase as an indicator of chronic lead exposure in wild populations of rainbow trout." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/90953.

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The activity of erythrocyte amino levulenic acid dehydratase (ALA-D) and liver and bone lead concentrations were measured in 141 wild rainbow trout from two highway-influenced and two pristine streams. A significant relationship between ALA-D activity and liver lead concentrations among streams (r = 0.157) was observed. However, this relationship was opposite of expected. Trout tissue lead and stream-water lead concentrations were lower than most concentrations observed for control laboratory trout. At these low tissue and water lead concentrations observed in the present study, ALA-D activity

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Al-Ibrahim, Zahid Omar Mustafa. "Investigation of pollution coming from copper, lead, and zinc mining, and factors controlling mobility and bioavailability of pollutants at Ecton Hill, Staffordshire, UK." Thesis, University of Wolverhampton, 2017. http://hdl.handle.net/2436/621722.

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Former mining areas are well-known globally to be a significant anthropogenic source of contaminants being dispersed into the surrounding environment. Various human activities, including ore mineral mining, industrial activities, domestic waste production, and the agricultural application of fertilisers and pesticides, are likely to contribute to the release of huge amounts of potentially toxic metals into the ecosystem, which have harmful effects on the flora and fauna and on human health. Therefore, the main aim of this study is to evaluate the contamination that arises from some selected he

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Meerkotter, Marÿke. "Sources of heavy metals in vegetables in Cape Town and possible methods of remediation." Thesis, University of the Western Cape, 2012. http://hdl.handle.net/11394/1721.

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Philosophiae Doctor - PhD<br>Cape Town includes two vegetable farming areas within the city limits, the Joostenbergvlakte/Kraaifontein area and the Philippi area. Both areas supply produce to local markets and further afield. Sporadically, high levels of cadmium, copper, lead and zinc have been found to occur in some of the soils, irrigation water resources and crops. To find the sources of specifically Cd, Pb and Zn to these agricultural systems, extensive analysis of several heavy metals in inputs such as fertilizers, agrochemicals and supplementary water resources to these farming areas was

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Vallelonga, Paul Travis. "Measurement of Lead Isotopes in Snow and Ice from Law Dome and other sites in Antarctica to characterize the Lead and seek evidence of its origin." Curtin University of Technology, School of Applied Science, 2002. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=14018.

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Human activities such as mining and smelting of lead (Pb) ores and combustion of alkyllead additives in gasoline have resulted in extensive global Pb pollution. Since the late 1960's studies of polar ice and snow have been undertaken to evaluate the extent of anthropogenic Pb emissions in recent times as well as to investigate changes in anthropogenic Pb emissions in the more distant past. The polar ice sheets have been used to investigate Pb pollution as they offer a long-term record of human activity located far from pollution sources and sample aerosol emissions on a hemispheric scale. Lead

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Auguy, Florence. "Identification de gènes impliqués dans la tolérance au plomb chez la brassicacée Hirschfeldia incana." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20141/document.

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L'exploitation, puis l'abandon, des sites miniers, dans l'oriental marocain, a entraîné une importante pollution des zones avoisinantes, générée par la dispersion de déchets riches en Pb. Pour résoudre ce problème, des programmes de phytomanagement sont à développer. Cependant, la réalisation de ces projets se heurte à deux contraintes : une faible diversité des plantes métallophytes et une méconnaissance des mécanismes de la tolérance au Pb.Dans ce contexte, l'objectif de mon travail de thèse a été de sélectionner une ou des plantes susceptibles d'entrer dans un programme de phytoremédiation

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Ciliberti, Alexandre. "Le Varan du Nil (Varanus niloticus), indicateur de la pollution des zones humides d’Afrique Sub-Saharienne." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10241/document.

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En Afrique, la contamination des zones humides par les métaux et les pesticides va se poursuivre durablement. Pour autant, le statut toxicologique de ces milieux reste trop peu documente. Le but du présent travail est d’estimer la valeur du varan du Nil (Varanus niloticus) en tant qu’espèce sentinelle pour la contamination des zones humides continentales d’Afrique sub-Saharienne. Plomb, cadmium, et pesticides organochlorés et organophosphorés ont été quantifies, par spectrométrie d’absorption atomique et chromatographie gazeuse (respectivement), dans plusieurs tissus provenant de 71 spécimens

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40

Jahed, Mohammed Nazeem. "The application of differential pulse anodic stripping voltammetry for the determination of copper, lead, zinc and cadmium in airborne particulate matter." Thesis, [S.l. : s.n.], 1995. http://dk.cput.ac.za/cgi/viewcontent.cgi?article=1007&context=td_ptech.

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41

Nkoe, Nozi 'Mabafokeng. "Assessment of cadium (Cd) and lead (Pb) contamination in the soils of pre-school facilities in the City of Cape Town." Thesis, Cape Peninsula University of Technology, 2009. http://hdl.handle.net/20.500.11838/2014.

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Thesis (MTech (Environmental Health))--Cape Peninsula University of Technology, 2009.<br>In the last two centuries, the natural state of the environment has changed significantly due to anthropogenic activities. With an estimated half-life of 15 - 1100 years for cadmium in soils, the metal remains a threat to the ecosystem. In general, most soils contain <1 mg/kg, except those contaminated from discrete sources or developed on parent materials with very high cadmium contents. Anthropogenic lead in soil has several well recognized major sources, namely, lead based paint, mining and smelti

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Taylor, Anne Marie, and n/a. "Biomarkers of Cadmium, Lead and Selenium Toxicity in the Marine Bivalve Molluscs Tellina deltoidalis and Anadara trapezia: Linking Exposure, Dose and Response." University of Canberra. Environmental Science, 2009. http://erl.canberra.edu.au./public/adt-AUC20091214.104734.

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The relationships between metal exposure, dose and response were investigated in two sediment dwelling marine bivalves: a deposit feeder Tellina deltoidalis and a filter feeder Anadara trapezia. The bivalves were exposed in the laboratory to individual metal spiked sediments: Cadmium 10 and 50 Ag/g; lead 100 and 300 Ag/g; selenium 5 and 20 Ag/g dry mass, T. deltoidalis for 28 days A. trapezia for 56 days. A. trapezia was also exposed in the laboratory for 56 days to sediments from three sites along a metal contamination gradient of cadmium, lead, selenium, zinc and copper from Lake Macquarie,

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Peres, Jayme Augusto. "Bovinos como bioindicadores da poluição ambiental por chumbo na região de Guarapuava -PR /." Botucatu : [s.n.], 2009. http://hdl.handle.net/11449/103770.

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Resumo: O chumbo (Pb) é um metal pesado naturalmente encontrado na natureza, principalmente sob a forma de galena. Suas concentrações consideradas toleráveis são suplantadas pela ação antropogênica, associada à exploração agropecuária inadequada e/ou deposição de resíduos químicos gerados por indústrias poluidoras do meio ambiente. Este elemento pode ser veiculado aos animais que utilizam dos recursos presentes no meio ambiente para sua subsistência comprometendo consequentemente o Bem Estar do Homem. O objetivo deste projeto é monitorar o meio ambiente utilizando amostras de sangue de bovinos

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Nylund, Andreas. "A Lead (Pb) Mass-Balance Budget for a Dry Periglacial Catchment in West Greenland : Discussing the fate of pollutant Pb." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-171856.

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Lead (Pb), occurs both naturally and as a pollutant in Arctic landscape systems. The ongoing climate change, especially pronounced in the Arctic, changes the premises for Pb transport and mobility. Thus, to predict future development of both natural and pollution Pb, an increased understanding of their storages and flows in an Arctic system is of interest. Here, a Pb mass-balance budget for an entire catchment in West Greenland was calculated. The budget shows that most Pb is stored in terrestrial soils (94%), while 6% of total catchment Pb is in lake sediments. Other Pb-pools are small in com

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Phan, Thi Phuong, Thi Thao Trang Pham, Khanh Linh Nguyen, et al. "The impacts of lead recycling activities to human health and environment in Dong Mai craft village, Hung Yen, Vietnam." Technische Universität Dresden, 2016. https://tud.qucosa.de/id/qucosa%3A32634.

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Lead (Pb) recycling activities in Dong Mai village, Chi Dao commune, Van Lam district, Hung Yen province have been taking place for more than 30 years. The development of recycling activities contributed to the improvement of the local economics. However, along with economic development, Dong Mai craft village is facing to serious pollution. Soil, air and water polluted by lead (Pb) caused food containing Pb at higher levels than allowed limit from 20 to 40 times. The pollution had the bad effect on human health in this village. The investigation results showed that 100 % of employee who parti

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Petersson, Liselott. "Traffic-Related Metals in Soil and Sediment in Mauritius." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88833.

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<p>Trafik utgör en stor föroreningskälla av tungmetaller i vägnära jordar och särskilt är det koppar (Cu), bly (Pb) och zink (Zn) som associeras med fordonstrafik. I ett historiskt perspektiv härrör blyutsläpp främst från bränsleförbränning, medan kopparemissioner (i första hand från slitage av bromsbelägg) och zinkutsläpp (från däck) från trafik står för så mycket som hälften av det urbana utsläppet av koppar och zink till omgivningen.</p><p>Koppar-, bly- och zinkkoncentrationer i vägnära jord och sediment undersöktes inom avrinningsområdet för Grand River North West i Mauritius. Eftersom tot

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Leite, Giselle de Angelo Souza. "Efeitos do chumbo na formação do esmalte fluorótico em ratos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/58/58135/tde-19032010-112217/.

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A co-exposição ao chumbo e ao flúor pode alterar o grau de fluorose dental, uma vez que ambos se depositam nos tecidos dentais. Ratos Wistar foram separados em 4 grupos: controle e 3 grupos que recebiam água contendo 100ppm de flúor (F), 30ppm de chumbo (Pb), ou 100ppm de F mais 30ppm de Pb desde a gestação. Análise do esmalte e determinação das dosagens de F no esmalte, dentina e osso foram realizadas nos animais com 81 dias. Defeitos nos incisivos dos ratos foram usados como escores em um índice que discriminou lesões na superfície como bandas, ilhas e cavidades. Não houve diferenças nas con

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Chu, Thi Thu Ha. "Survey on heavy metals contaminated soils in Thai Nguyen and Hung Yen provinces in Northern Vietnam." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-88569.

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In Vietnam, soil contamination with lead and cadmium at very high level was investigated anddiscovered in the surrounding areas of zinc-lead mining and processing factory in Tan Long (Dong Hy district, Thai Nguyen province) and around the lead-recycling smelter in Chi Dao (Van Lam district, Hung Yen province). The survey on soil contaminated by arsenic due to the tin mining and sifting activities in Ha Thuong (Dai Tu district, Thai Nguyen province) was also carried out. In Tan Long, the concentrations of lead and cadmium in the old solid waste dump from zinc-lead factory varied from 1,100 to 1

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SEMMLER, MARILIA G. M. C. "Biomonitoração de Hg, Cd, Pb e outros elementos em áreas costeiras do estado de São Paulo por meio de mexilhão transplantado Perna Perna (LINNAEUS, 1758)." reponame:Repositório Institucional do IPEN, 2007. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11569.

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Made available in DSpace on 2014-10-09T12:53:22Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:36Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energéticas e Nucleares-IPEN-CNEN/SP

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CASTRO, FRANCISCO J. V. de. "Disponibilidade dos metais Cd e Pb e do metalóide As na bacia hidrográfica do Rio Ribeira do Iguape e afluentes: uma avaliação da contaminação ambiental." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9938.

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Made available in DSpace on 2014-10-09T12:33:01Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:05Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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