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Dissertations / Theses on the topic 'Arsenic Environmental aspects Bangladesh'

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Published: 4 June 2021

Last updated: 19 February 2022

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1

Uddin, G. M. Saleh. "Groundwater contamination by arsenic in Bangladesh : causes, consequences and solutions." Title page, table of contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09ENV/09envu18.pdf.

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2

Huhmann, Brittany Lynn. "Mitigating the impacts of arsenic on human health and rice yield in Bangladesh." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120601.

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Thesis: Ph. D. in Environmental Engineering, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2018.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references.<br>Naturally-occurring groundwater arsenic can threaten human health and food security. In Bangladesh, >50 million people are estimated to have chronically consumed water with arsenic above the World Health Org

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3

Ashfaque, Khandaker. "Effect of hydrological flow pattern on groundwater arsenic concentration in Bangladesh by Khandaker Ashfaque." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42218.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2007.<br>Includes bibliographical references.<br>Widespread arsenic contamination of groundwater has become a major concern in Bangladesh since the water supply, particularly in rural areas, is heavily dependent on groundwater. However, relative to the extent of research on biogeochemical processes of arsenic mobilization, very little work has been conducted to understand the complex transient dynamics of groundwater flow, and the transport of arsenic and other solutes that control its mobilit

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4

KARTHIK, BHAMIDIMARRI B. K. "SPATIAL VARIABILITY OF GROUNDWATER ARSENIC IN BANGLADESH: AN EVALUATION OF GEOLOGIC AND PHYSICAL CONTROLS." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1005673192.

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5

Neumann, Rebecca B. "The hydrogeochemistry of pond and rice field recharge : implications for the arsenic contaminated aquifers in Bangladesh." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/57548.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, February 2010.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student submitted PDF version of thesis. Page 290 blank.<br>Includes bibliographical references.<br>The shallow aquifers in Bangladesh, which provide drinking water for millions and irrigation water for innumerable rice fields, are severely contaminated with geogenic arsenic. Water mass balance calculations show t

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6

Savoie, Courtney Beth Young. "Arsenic Mobility and Compositional Variability in High-Silica Ash Flow Tuffs." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1012.

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Volcanic rocks typically have only low to moderate arsenic concentrations, none-the-less, elevated levels of arsenic in ground waters have been associated with pyroclastic and volcaniclastic rocks and sediments in many parts of the world. The potential for arsenic leaching from these deposits is particularly problematic as they often comprise important water-bearing units in volcanic terrains. However, the role that chemical and mineralogical variations play in controlling the occurrence and mobility of arsenic from pyroclastic rocks is largely unexplored. This study uses chemical and X-ray di

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7

Halim, Sadeka. "Invisible again : women and social forestry in Bangladesh." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ64569.pdf.

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8

Swarna, Anitha. "Removal of Arsenic Using Iron Coated Limestone." TopSCHOLAR®, 2014. http://digitalcommons.wku.edu/theses/1342.

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Arsenic contamination in drinking water is a severe problem worldwide. The best way to prevent hazardous diseases from chronic arsenic exposure is to remove the exposure. Efforts to remediate arsenic in drinking water have taken two tracks. One is to provide surface or shallow well water sources as an alternative to the arsenic contaminated deep wells. Another approach is to remove arsenic from the contaminated water. Different removal technologies like oxidation, chemical coagulation, precipitation, adsorption and others are available. There are problems and benefits associated with each of t

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9

Lesley, Michael Patrick. "The fluxes and fates of arsenic, selenium, and antimony from coal fired power plants to rivers." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04082004-180307/unrestricted/lesley%5fmichael%5fp%5f200312%5fms.pdf.

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10

Lou, Laiqing. "Arsenic uptake, accumulation and tolerance in Chinese brake fern (Pteris vittata L., an arsenic hyperaccumulator) under the influence of phosphate." HKBU Institutional Repository, 2008. http://repository.hkbu.edu.hk/etd_ra/928.

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11

Wakil, Md Abdul. "Role of tourism to achieve environmental sustainability in coastal areas : a case of Cox's Bazar, Bangladesh." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206615.

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Tourism is acquiring the attention worldwide especially in the developing countries (Akpabio et al. 2006). In the case of coastal areas, tourism is more sensitive to environmental degradation compared to other economic activities because the environment is its primary resource. With the help of efficient planning and proper management of natural resources, tourism can significantly contribute to environmental conservation and to achieve environmental sustainability in coastal areas (Orhon et al. 2011). The main purposes of this study are to explore the tourism development trend in coastal a

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12

Smith, Euan. "Chemistry of arsenic in soils of north-east New South Wales /." Adelaide, 1998. http://web4.library.adelaide.edu.au/theses/09ASOP/09asops646.pdf.

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13

Pryer, Jane Allison. "Socio-economic and environmental aspects of undernutrition and ill-health in an urban slum in Bangladesh." Thesis, University of London, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296768.

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14

Leung, Ho Man Homan. "Interactions of arbuscular mycorrhizal fungi with an arsenic hyperaccumulator plant (pteris vittata) on the uptake of arsenic." HKBU Institutional Repository, 2008. http://repository.hkbu.edu.hk/etd_ra/945.

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15

Dodd, Matthew. "Arsenic speciation studies on some marine invertebrates of British Columbia." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28664.

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Graphite furnace and hydride generation atomic absorption, GFAA and HGAA, techniques have been developed and applied to the determination of arsenic concentrations in some marine invertebrates, mainly bivalves and gastropods, of British Columbia. Total arsenic concentrations in bivalves vary with species, ranging from 0.6-9.1 μg g⁻¹ (wet weight basis). Arsenic concentrations in the bivalve shells show a wider range of 0.1 to 26.3 μg g⁻¹ (dry weight basis). Gastropods show relatively higher arsenic concentrations in the soft tissues, 17.3-48.4 fig μg g⁻¹, and concentrations in the shells range

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16

Ricker, Tracy Ryan. "Arsenic in the Soils of Northwest Oregon." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/927.

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One hundred and eighty-six soil samples from Northwest Oregon were tested for arsenic content. The highest values measured were 13.9 ppm in the A horizon (site C4) and 20.4 ppm in the B horizon (Site P4). Arsenic was not detected in 28 A horizon samples and 23 B horizon samples. Data are grouped based on the age and rock type of underlying bedrock. Lithologic groups with six or more data points were compared statistically to ascertain if groups are distinct. Analysis of Variance (ANOVA) multiple comparison tests indicate that the arsenic content of the Marine Sediments and Sedimentary Rocks gr

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17

Edvantoro, Bagus Bina. "Bioavailability, toxicity and microbial volatilisation of arsenic in soils from cattle dip sites." Title page, Contents and Abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09A/09ae24.pdf.

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18

Ankarstig, Celina, and Victoria Berggren. "Interactive Local Driller Mapping for Different Hydrogeological Areas of Bangladesh : Enabling Access to Information." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281933.

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Exposure to arsenic in drinking water can cause several types of cancer and numerous cardiovascular and respiratory diseases. A country that suffers from widespread contamination of arsenic in drinking water is Bangladesh, where the contamination has been classified as the largest mass poisoning of a population in history. Around 90 percent of the existing tubewells used for drinking water in Bangladesh were installed by the private sector and local drillers, which makes their knowledge on drinking water contamination crucial in order to make them contributory for scaling up access to safe dri

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19

Wu, Chuan. "Effects of radial oxygen loss (ROL) on arsenic tolerance, uptake and distribution by rice (Oryza sativa L.)." HKBU Institutional Repository, 2011. http://repository.hkbu.edu.hk/etd_ra/1246.

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20

Robb, Rhonda Rae. "Risk Factors for Pre-Post Monsoon Cholera Epidemics in Bangladesh from 1992-1994." PDXScholar, 2004. https://pdxscholar.library.pdx.edu/open_access_etds/1691.

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The primary objective of this thesis is to differentiate between the risk factors for pre-and post-monsoon cholera epidemics in rural Bangladesh by analyzing the complex interaction between select environmental, cultural/behavioral, and socioeconomic variables over space and time. In rural Bangladesh, cholera epidemics correspond with the annual monsoon: the first, and smallest, occurs between March and June, while the larger cholera peak occurs between September and December. The differences between the spatial and temporal patterns of seasonal cholera are analyzed, and the risk factors are c

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21

Momplaisir, Georges-Marie. "Development of analytical methods for the speciation of arsenic in the marine environment." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40201.

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Several biologically important arsenic compounds including methylarsonate, trimethylarsine oxide, tetramethylarsonium ion, arsenobetaine and arsenocholine were prepared, in good yields, from sodium arsenite, or dimethylarsinic acid. These organoarsenic compounds together with arsenite, arsenate and dimethylarsinic acid were used as standards for the development of analytical methods for determining the levels of individual arsenic compounds (arsenic speciation) present in natural matrices.<br>Arsenobetaine, arsenocholine and tetramethylarsonium ion were separated by high performance liquid chr

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22

Hurtado, Heather Ann. "Naturally Occurring Background Levels of Arsenic in the Soils of Southwestern Oregon." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2996.

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This study examines the natural background concentrations of arsenic in the soils of southwest Oregon, using new samples in addition to data collected from previous theses (Khandoker, 1997 and Douglas, 1999). The original 213 samples were run by ICP-AES with a reporting limit of 20 ppm, and only three samples had detected values. The original samples were tested again (2013) at a lower reporting limit of 0.2 ppm by ICP-MS, as were 42 new samples (2013), to better ascertain the natural levels of arsenic in undisturbed soils. The aim is to add to the existing DEQ data set, which has been used to

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23

Chan, Wai Fung. "The roles of arbuscular mycorrhizal fungi in arsenic uptake and tolerance of upland rice." HKBU Institutional Repository, 2011. http://repository.hkbu.edu.hk/etd_ra/1257.

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24

Li, Hui. "The role of arbuscular mycorrhizal fungi (AMF) on the tolerance and accumulation of arsenic in rice (Oryza sativa L.)." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1409.

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25

Maertens, Odría Luis R. "Essays in development, environmental, and health economics." Doctoral thesis, Universitat Pompeu Fabra, 2017. http://hdl.handle.net/10803/420867.

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This thesis is composed of three independent essays. In the first chapter, I analyze the effect of a biofuel-favorable policy in the U.S. on fetal health. I show that the policy led to an expansion in the production of corn, a pesticide-intensive crop, and to increased risk of fetal conditions previously associated with exposure to corn pesticides. In the second chapter, I examine the role of agricultural productivity as a mechanism linking rainfall shocks to civil wars in African countries. I show that rainfall over agricultural land and during the growing season has a hump-shaped relationshi

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26

Chow, Stephanie Stacey. "Effects of Biogeochemical and Physical Processes on the Transformation of Trace Metals at Oxic-Anoxic Interfaces in Aquatic Systems." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19705.

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Trace metals (e.g. Fe, Mn, Zn, Cu, Cd, Ni) are important micronutrients that have historically been regarded as toxic pollutants rather than essential components of riverine and estuarine environments. The toxicity and behavior of trace metals, in response to physical and biogeochemical processes, are determined by their individual physico-chemical properties. In this dissertation, the vertical transformation of trace metals across oxic-anoxic interfaces was investigated at two sites, a Fe-rich freshwater river with minimal sulfide and an estuary with elevated Mn and H2S concentrations.

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27

Wong, Stephen W. "Reproductive toxicity and bioavailability of arsenic in contaminated artificial and natural soils using the earthworm." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79205.

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High concentrations of arsenic are found near gold-mine tailings. The most common form of arsenic found in soil is arsenate, which is a known toxicant. We used the standardised earthworm reproduction test for the species Eisenia andrei (E. andrei) to study the toxicity and bioavailability of arsenic-contaminated soil. Arsenic is toxic to earthworms as indicated by the decrease in survival and reproduction. Arsenic-spiked artificial soil was more toxic than arsenic-spiked field soil based on total arsenic concentration in soil. Moreover, soil from near mine tailings showed a reduced toxi

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28

Haffert, Laura, and n/a. "Metalloid mobility at historic mine and industrial processing sites in the South Island of New Zealand." University of Otago. Department of Geology, 2009. http://adt.otago.ac.nz./public/adt-NZDU20090921.144328.

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Rocks of the South Island of New Zealand are locally enriched in metalloids, namely arsenic (As), antimony (Sb) and boron (B). Elevated levels of As and Sb can be found in sulphide minerals mostly in association with mesothermal gold deposits, whereas B enrichment occurs in marine influenced coal deposits. The mobility of these metalloids is important because they can be toxic at relatively low levels (e.g. for humans >0.01 mg/L of As). Their mobilisation occurs naturally from background weathering of the bedrock. However, mining and processing of coal and gold deposits, New Zealand's most eco

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29

McAnally, Elizabeth Ann. "Toward a philosophy of water: Politics of the pollution and damming along the Ganges River." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3643/.

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This thesis sets out to develop a beginning of a philosophy of water by considering philosophical implications of ecological crises currently happening along the waters of the Ganges River. In my first chapter, I give a historical account of a philosophy of water. In my second chapter, I describe various natural and cultural representations of the Ganges, accounting for physical features of the river, Hindu myths and rituals involving the river, and ecological crises characterized by the pollution and damming of the river. In my third and final chapter, I look into the philosophical implicatio

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30

Bozack, Anne K. "Chronic arsenic exposure in Bangladesh and the United States: from nutritional influences on arsenic methylation to arsenic-induced epigenetic dysregulation." Thesis, 2019. https://doi.org/10.7916/d8-dg91-0d76.

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Background: Chronic arsenic (As) exposure in a global public health concern. Arsenic exposure through drinking water affects over 140 million people in at least 70 countries, including 40 million people in Bangladesh. In the United States (US), 2.4 million people rely on private wells or public water systems with As levels above the US maximum contaminant level. Ingested inorganic arsenic (InAs) is methylated to monomethyl (MMAs)- and dimethyl (DMAs)-arsenical species using the methyl donor S-adenosylmethionine (SAM). Full methylation of InAs to DMAs decreases As toxicity and facilitates uri

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31

Sanchez, Tiffany Renee. "Understanding inorganic arsenic exposure in Bangladesh and respiratory health consequences using a life course approach." Thesis, 2016. https://doi.org/10.7916/D8DR2VMH.

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Inorganic arsenic exposure is a well-known toxicant of which we are still discovering harmful effects. People are exposed to inorganic arsenic in the environment through either drinking arsenic-contaminated groundwater or consuming arsenic-contaminated food. Regarding global public health, drinking water is still the most important source of inorganic arsenic exposure and is the main focus of this work. The overall goal of this dissertation is to answer some pointing epidemiological questions about exposure to inorganic arsenic: How much do we know about inorganic arsenic and non-maligna

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32

Argos, Maria. "Genetic Susceptibility to Arsenic Exposure and Arsenical Skin Lesion Prevalence in Bangladesh." Thesis, 2011. https://doi.org/10.7916/D8CC16NM.

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Elevated concentrations of arsenic in groundwater pose a public health threat to millions of people worldwide. While arsenic is an established human carcinogen, a mode of action has yet to be determined for arsenic carcinogenesis. However, the oxidative stress and DNA repair pathways have been implicated in arsenic toxicity and have been hypothesized to underlie arsenic carcinogenesis. To date, few epidemiologic studies have evaluated genetic susceptibility to arsenical skin lesions based on single nucleotide polymorphisms (SNPs) in antioxidant enzyme or DNA repair genes. Utilizing cross-secti

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33

George, Christine Marie. "A Cluster-Based Randomized Controlled Trial Promoting Community Participation in Arsenic Mitigation Efforts in Bangladesh." Thesis, 2012. https://doi.org/10.7916/D83T9Q7G.

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Millions of villagers in Bangladesh drink water which exceeds the Bangladesh arsenic (As) standard of 50 micrograms per liter. Exposure to elevated levels of inorganic As (As) is associated with cancers of the skin, bladder, and lung, developmental effects, cardiovascular disease, skin lesions, and decreased children's intellectual functioning. Arsenic mitigation typically involves an outsider coming into a village to test the well water for As. After the results of the As test are provided this person typically leaves the village without providing the resources to address health concerns or g

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34

Soumya, Hassan Balasubramanya. "Information as an Environmental Policy Instrument: Examining Household Response to Arsenic in Tube-Well Water in Araihazar, Bangladesh." Diss., 2011. http://hdl.handle.net/10161/3898.

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<p>This dissertation examines the potential of information-provision in motivating behavior that reduces human exposure to arsenic in drinking-water in Bangladesh. In chapter 2, the longer-term effects of the countrywide arsenic-testing and information-program are examined by tracking tube-well switching behavior of households over a five-year period. Chapter 3 focuses on the effects of arsenic information communication formats on tube-well switching behavior, by employing a randomized field experiment. In chapter 4, an instrumental variables approach is used to understand whether a household'

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35

Mihajlov, Ivan. "The vulnerability of low-arsenic aquifers in Bangladesh: a multi-scale geochemical and hydrologic approach." Thesis, 2014. https://doi.org/10.7916/D8K35RR6.

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The worldwide natural occurrence of high levels of arsenic (As) in groundwater and its deleterious effects on human health have inspired a great amount of related research in public health and geosciences internationally. With >100 million people in South and Southeast Asia exposed to >10 µg/L As in shallow groundwater that they use for drinking, the installation of deeper, low-As wells has emerged as a major strategy for lowering the exposure. As the magnitude of deep pumping continues to increase, this work focuses on the geochemical and hydrologic questions surrounding the vulnerability and

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36

Saxena, Roheeni. "Nutrition, Arsenic, Metals, and Cognitive Function in Adolescents." Thesis, 2020. https://doi.org/10.7916/d8-ves1-x449.

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Background: Environmental exposure to inorganic arsenic (InAs) is a considerable worldwide problem, and over 57 million people in Bangladesh have been chronically exposed to arsenic-contaminated drinking water. Ingested inorganic arsenic (InAs) undergoes hepatic methylation generating monomethyl- (MMAs) and dimethyl- (DMAs) arsenic species in a process that facilitates urinary As (uAs) elimination. Of these three metabolites (InAs, MMA and DMA), MMA the most toxic, InAs is the second most toxic, and DMA is the least toxic. Consequently, increased MMAs is associated with increased risk of

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37

Nicholson, Heather Christine. "Arsenic in plants important to two Yukon First Nations : impacts of gold mining and reclamation practices." Thesis, 2002. http://hdl.handle.net/2429/13867.

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This project examines arsenic in plants growing near closed or reclaimed gold mines located in the traditional territories of two Yukon First Nations. A total of 238 soil and plant samples (comprising 9 different species) were collected from Mt. Nansen, Arctic Gold and Silver, and Venus Mine tailing properties. At each property, samples were collected near the suspected point source of contamination, approximately 1 -3 km away, and from background sites. Species were chosen for their ethnobotanical significance to the Little Salmon/Carmacks and the Carcross/Tagish First Nations, based o

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38

Johnson, Matilda Olubunmi. "Visual analytics of arsenic in various foods." Thesis, 2014. http://hdl.handle.net/10500/14388.

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Arsenic is a naturally occurring toxic metal and its presence in food composites could be a potential risk to the health of both humans and animals. Arseniccontaminated groundwater is often used for food and animal consumption, irrigation of soils, which could potentially lead to arsenic entering the human food chain. Its side effects include multiple organ damage, cancers, heart disease, diabetes mellitus, hypertension, lung disease and peripheral vascular disease. Research investigations, epidemiologic surveys and total diet studies (market baskets) provide datasets, information and knowledg

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39

von, der Goltz Jan Christoph. "Essays in Development and Environmental Economics." Thesis, 2016. https://doi.org/10.7916/D83B602K.

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This dissertation discusses three questions of development and environmental economics. First, it assesses the impact of mineral mining on the health and wealth of households in local communities across 44 developing countries, using micro data. Secondly, it presents evidence from a randomized controlled trial on the cost-shared provision of well-water tests for arsenic. Finally, it analyzes measurement error in a satellite night light data product widely used in development research, and investigates the scope for using the data in very high spatial resolution.

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40

Nigra, Anne. "Arsenic Exposure in US Drinking Water: Spatial Patterns, Temporal Trends, and Related Mortalities." Thesis, 2020. https://doi.org/10.7916/d8-wkvz-4826.

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Reducing population exposure to inorganic arsenic (iAs), a known carcinogen and highly toxic metalloid of great public health concern, remains an ongoing challenge worldwide and in the United States (US). In the US, the Environmental Protection Agency (EPA) regulates the maximum contaminant level (MCL) for total arsenic in public drinking water supplies through the Safe Drinking Water Act. In 2001, the US EPA implemented the Final Arsenic Rule, which lowered the MCL for arsenic in public drinking water supplies from 50 to 10 µg/L. Reductions in iAs exposure and subsequent related disease assoc

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41

Osathaphan, Khemarath. "Multi-metal equilibrium sorption and transport modeling for copper, chromium, and arsenic in an iron oxide-coated sand, synthetic groundwater system." Thesis, 2001. http://hdl.handle.net/1957/32443.

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The mixed metal compound, Chromated Copper Arsenate, or CCA, has been widely used as a wood preservative. The metal ions in CCA, CrO��, Cu��, and AsO��, have been found in contaminated surface and subsurface soils and groundwater nearby some wood preservative facilities and nearby wood structures. Iron oxides are a ubiquitous soil-coating constituent and are believed to be a main factor in controlling the transport and fate of many metals in the soil solution. In this research, iron-oxide-coated sand (IOCS) is used as a surrogate soil to investigate the adsorption and transport

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