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1

Chernicharo, Carlos Augusto de Lemos. "The effect of temperature and substrate concentration on the performance of U.A.S.B. reactors." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308963.

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2

Al-Rasheid, Khaled A. S. "The effect of heavy metals on the marine ciliate Euplotes mutabilis (Tuffrau, 1960)." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358875.

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3

Dando, Chrtistine. "The effect of zinc on physiological function in Gammarus pulex : a between-individual variation approach." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274947.

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4

Shaw, Peter James. "The effect of humic substances on the speciation and bioavailability of iron and phosphate in lakes." Thesis, Lancaster University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239867.

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5

Tennakoon, Nihal Ananda. "Effect of heavy metal contaminated sewage sludge on biological and chemical properties of coniferous forest soils." Thesis, University of Aberdeen, 1993. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU549118.

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A field study was carried out at Ardross forest, northern Scotland where heavy metal contaminated sewage sludge had been applied to a peaty podzol at rates of 500 (low) and 1000 (high) kg N ha-1 before tree (Sitka spruce) planting. Nitrogen mineralisation rates determined by field incubation of sealed cores ranged from 3.7 to 4.5 and 7.3 to 9.4 kg N h-1 over the growing season (May to September, 1991) in soils amended with low and high rates of sludge respectively. For the control soil, to which no sludge had been added, mineralisation rates ranged from 2.4 to 2.9 kg N ha-1. Mineralisation of
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6

Warwick, Oliver William Tindle. "The use of a biomarker to assess the effect of xenobiotic exposure on the freshwater invertebrate Gammarus pulex." Thesis, University of Sheffield, 1997. http://etheses.whiterose.ac.uk/10191/.

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Contamination of freshwaters is of concern because of its effect on ecosystem health. The effect of contamination can be assessed at all levels of biological organisation, from the ecosystem level to the molecular level. At the biochemical level, enzymes that are involved in the detoxification of organic chemical contaminants are useful as markers of contaminant exposure as they are often one of the first systems to respond to chemical exposure. Furthermore, changes in the activity of these enzymes may be indicative of effects at higher levels of biological organisation. In this study, the use
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7

Al-Alawi, Zahra Sadiq. "Effect of treated BAPCO oil refinery effluents on the marine environment in Bahrain." Thesis, University of Stirling, 1989. http://hdl.handle.net/1893/21524.

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The aim of this thesis was to study the effect of the treated oil refinery effluents of Bahrain Petroleum Company ( BAPCO ) on the marine environment. The study has been carried out in seven chapters, the first de~ling with general introduction about the physical environment of the Arabian Gulf and its oil industry in addition to marine pollution and fishery in Bahrain. The second chapter was aimed at studying the quality of water at different areas in Bahrain to compare it with the quality of water at an area adjacent to the refinery outfalls. The third chapter deals with the impact of the re
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8

Southern, Roger L. "The effects of oil spillages on soil fauna." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357081.

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9

Laopaiboon, Lakkana. "The effect of sublethal and lethal concentration of biocides on the performance and characteristics of rotating biological contactors and the properties of their biofilms." Thesis, University of Hertfordshire, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369763.

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10

Al-Khafaju, Adil A. "The fate of fuel oil added to soil and its effect on soil properties." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244880.

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11

Miller, David J. "Effect of oil age on polyaromatic hydrocarbon emissions from automobiles." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/101130.

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Automobiles are known to emit polyaromatic hydrocarbons. The literature indicates that the emission levels of these compounds are correlated with oil age, and it has been hypothesized that entry of oil into the combustion chamber is a major cause of these emissions. This experiment investigated the relationship between oil age and these polyaromatic hydrocarbon emissions. It was found that the three polyaromatics of interest seem to be emitted inconsistently and irregularly. It is possible that this was due to a buildup on the combustion chamber walls of these compounds: polyaromatics are form
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12

Harrison, Adrian Briscoe. "Hydrocarbon pollution of soil : effects on microbial populations and biomediation methods." Thesis, University of York, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362025.

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13

Amakiri, Jonathan Ombo. "Effects of oil pollution on the saltmarch grass Puccinellia maritima (Huds.) Parl." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37616.

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14

Rolph, R. P. G. "The effects of dichlorvos on intertidal communities." Thesis, Heriot-Watt University, 1994. http://hdl.handle.net/10399/1316.

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15

Francis, Christine Helen. "An investigation of the use of the sister chromatid exchange assay in the plaice Pleuronectes platessa L. to indicate genotoxic effects of oil based compounds." Thesis, University of Aberdeen, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277320.

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North Sea oil drilling operations employ oil-based muds which contain aromatic compounds likely to be genotoxins. Recent legislation has controlled use and discharge of the muds to try to minimise their effects. In an attempt to include a procedure in the ongoing monitoring programme in the North Sea, which could detect genotoxic effects, the sister chromatid exchange (SCE) technique has been developed in the plaice, <i>Pleuronectes platessa</i>. Preliminary work on the plaice involved developing the techniques for cytological examination and for obtaining sister chromatid differentiation. A s
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16

Hebel, Dagmar Karina. "Effects of copper on gill structure and physiology in Carcinus maenas." Thesis, University of Plymouth, 1997. http://hdl.handle.net/10026.1/2296.

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The effects of sublethal copper exposure at three levels of biological organisation were studied in the common shore crab Carcinus maenas (L.) (Crustacea, Decapoda). The three levels included the ultrastructure of respiratory and osmoregulatory gill tissues; ventilatory physiology (scaphognathite activity); and tissue metallothionein levels. Respiratory gill epithelia were more sensitive to sublethal copper exposure than osmoregulatory gill tissues. The cellular damage observed included severe epithelial necrosis and vacuolation, hyperplasia and haemocyte infiltration. In the respiratory gills
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17

Van, Egmond Roger Albert. "The effects of organic pollution on fish detoxification mechanisms and reproduction." Thesis, Edinburgh Napier University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386002.

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18

Henderson, Shirley B. "An investigation into the effect on total toxicity predictions of interactions between components of a typical North Sea produced water." Thesis, Heriot-Watt University, 1999. http://hdl.handle.net/10399/1232.

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19

Berktay, Ali. "The effects of pressure on aerobic biological wastewater treatment using rotating biological contractors." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/11709.

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The aim of this research was to investigate the application and effects of pressure on an aerobic biological wastewater treatment process. For the purpose of the investigation two specially designed, identical, laboratory-scale rotating biological contactor (RBC) units were constructed. One of these was held in a steel pressure vessel while the reference unit was operated open to the atmosphere. The treatment capabilities of the pressurized unit, as compared to those of the reference unit, were determined for a variety of organic loadings at increasing pressures up to a limit of 6 bar. During
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20

Bruce, Lorna J. "The effects of heavy metal-rich sewage sludge on Collembola communities in grassland." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266457.

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21

Sanyi, Hassan H. A. R. "Effects of liming of upland soils on nutrient mobilities in relation to water quality." Thesis, University of Aberdeen, 1989. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU020937.

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The work in this thesis relates to understanding the potential effects of using surface liming of upland soils to ameliorate water acidification. Effects on vegetation, soil, and drainage water chemistry are considered. Part I of this thesis reviews the environmental conditions of British Uplands (climate, soils and vegetation), and the relevant literature on water acidification in North-East Scotland. In Part II, each chapter deals with materials, methods used, discussion of the results and conclusion for one of a series of individual experiments. This pattern is followed for a number of labo
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22

Dooa, Anita. "The effects of metals on plants in the Avonmouth area with particular reference to Lemna minor." Thesis, Royal Holloway, University of London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336516.

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23

Jobling, Susan. "Environmental oestrogenic chemicals and their effects on sexual development in male rainbow trout (Oncorhynchus mykiss Walbaum)." Thesis, Brunel University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262498.

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24

Pandia, Setiaty. "The effects of detergents in wastewater on foaming at activated sludge plants and on receiving water quality." Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277392.

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25

Poulton, Madeline June. "Toxic effects of freshwater pollutants on the survival, behaviour and reproduction of Gammarus pulex (L.) and Asellus aquaticus (L.)." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320266.

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The toxic effects of cadmium on aspects of the survival, behaviour and reproduction of Gammarus pulex and Asellus aquaticus are described in some detail. Some of the laboratory procedures were validated in field experiments. The presence of the parasites Pomphorhynchus laevis and Echinorhynchu_s1truttae does not modify the toxicity of cadmium (0.01-1.0 mgl ) to their intermediate-Fost G. pu7ex. Pretreatment for 24 hours with 0-47 μgl cadmium alters the distribution of separation times when precopula pairs of G. pu7ex are disrupted by the invertebrate anaesthetic 2- phenoxyethanol. Precop1la is
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26

Boyé, Donald J. "The effect of weathering processes on the vertical turbulent dispersion characteristics of crude oil spilled on the sea." FIU Digital Commons, 1994. http://digitalcommons.fiu.edu/etd/1777.

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Since the Exxon Valdez accident in 1987, renewed interest has come forth to better understand and predict the fate and transport of crude oil lost to marine environments. The short-term fate of an Arabian Crude oil was simulated in laboratory experiments using artificial seawater. The time-dependent changes in the rheological and chemical properties of the oil under the influence of natural weathering processes were characterized, including dispersion behavior of the oil under simulated ocean turbulence. Methodology included monitoring the changes in the chemical composition of the oil by Gas
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27

Millward, R. N. "The effects of chronic and acute metal-enrichment of the nematode community structure, composition and function in Restronguet Creek, SW England." Thesis, University of East Anglia, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296865.

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28

Leaver, Michael J. "Studies on the effects of oiled drill cuttings on marine sediments and on the hepatic cytochrome P-450 monooxygenases of plaice." Thesis, University of Aberdeen, 1987. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU010249.

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Section 1 deals with the effects of four low toxicity oiled drill cuttings samples and one diesel oiled cuttings sample on marine sediments. The sediments were contained in 18 onshore tank systems and, after equilibration for 3 months, cuttings were added at levels comparable to those found at about 500m from North Sea oil installations. Tanks containing uncontaminated sediments acted as controls. All contaminated tanks showed identical changes in redox profiles, becoming most reduced after 3 months and gradually recovering thereafter. The highest sulphide levels were recorded in tanks with th
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29

Pérez, Calderón Luis José. "Fate of spilled oil in marine sediments and the effects of chemical dispersant." Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=238377.

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The rise in global energy demand has motivated the exploration and production of oil and gas in increasingly challenging marine environments and there is a continuous risk of accidental oil spills. One of the many fates of spilled oil is deposition on the seabed, which has been extensively studied following the Deepwater Horizon oil spill. However, post-depositional fates of oil in sediments are not well understood. Similarly, the effects of chemical dispersant on oil fate are currently under investigation as their overall contribution to mitigating oil spills environmental impacts remains deb
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30

Ruiz, Jose Miguel. "Metallic pollution in estuaries, with special reference to the effects of tributyltin (TBT) and copper on the early life stages of Scrobicularia plana (Mollusca: Bivalvia)." Thesis, University of Plymouth, 1993. http://hdl.handle.net/10026.1/2480.

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During the 1980s a decline in populations of the bivalve Scrobicularia plana was noted in several U.K. estuaries: tributyltin (TBT) was suspected of being the cause although its toxicity to adults could not be demonstrated except at elevated concentrations; disappearance of clam populations has been also observed in other European countries. Laboratory tests have revealed that: i) D-larvae hatching from embryos after 48 hours in TBT concentrations of 188 ngSn/l amounted to < 50% of control values, and doses of 364 ngSn/l or 20 µgCu/l prevented normal development in = 90% of embryos. ii) plankt
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31

AlKindi, Abdulaziz Yahya Ahmed. "The effects of the water-soluble fraction of crude oil on flounders and larvae of turbot." Thesis, University of Exeter, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260638.

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32

Jubran, Jafar, and A. Bavykina. "Toxic chemical pollution of water resources as a threat to the sustainable development." Thesis, Sumy State University, 2014. http://essuir.sumdu.edu.ua/handle/123456789/36086.

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Water pollution by oil and oil products is an additional source in stress to aquatic organism and it has a great impact on wetlands. Oil pollution of water resources has transformed today into a problem of global proportions. Pollutants such as oil are the greatest dangers because it doing a toxic effect on organisms of neuston, pleuston, plankton and benthos. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/36086
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33

Mtiya, Khanyisa Siyakudumisa. "Modelling the dispersion of SO2 emissions from the chevron (Cape Town) oil refinery using the US EPA dispersion models AERMOD and CALPUFF." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/864.

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Thesis submitted in partial fulfilment of the requirements for the degree Master of Technology: Chemical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology 2013<br>In South Africa, the Department of Environmental Affairs (DEA) under the National Environmental Management Act, 1998 (Act 107 of 1998) (“NEMA”) sets out a series of environmental management principles that apply to the interpretation and application of all legislation that may affect the environment. Since 1998, various specific environmental statutes that fall under the NEMA framework have been
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34

Fernandes, Teresa Faria. "An experimental field study of the effects of oil pollution on the structure and functioning of estuarine intertidal communities." Thesis, University of Aberdeen, 1992. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU052837.

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The main objective of this thesis was to study the effects of crude oil extracts on intertidal sediment communities. The approach was to focus on community structure and investigate the impact of a specific perturbation, crude oil extracts, relating to hypothetical oil spill situations. Both the impact of different disturbances on the same benthic community (i.e. with uniform structure) and the impact of the same disturbance on differently structured benthic communities were investigated. The effects on number of species, distribution of individuals between species and diversity were analysed,
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35

Agars, Robert C., University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "Assessment of the potential environmental effects of soluble hydraulic oil on natural waters." THESIS_CSTE_SFH_Agars_R.xml, 2001. http://handle.uws.edu.au:8081/1959.7/249.

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A series of physical and chemical analyses were conducted over a fifteen month period to establish the ecological risk, if any, of discharging minewater into aquatic ecosystems. Organic and inorganic analyses were used to determine the extent of contamination of minewater with soluble hydraulic fluids and other contaminant species. Throughout the sampling period the pithead discharge water exhibited a neutral pH and low levels of iron, manganese, zinc and potassium were found. Parallel toxicological and chemical studies identified elevated zinc levels above published toxicity levels for the te
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36

Thomas, Kevin Victor. "Characterisation and environmental effects of unresolved complex mixtures of hydrocarbons." Thesis, University of Plymouth, 1995. http://hdl.handle.net/10026.1/462.

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The gas chromatograms of crude oil hydrocarbons reveal both resolved and unresolved components. The unresolved feature is commonly referred to as the unresolved complex mixture (UCM). UCMs are thought to result from the co-elution of complex mixtures of hydrocarbons with similar chemical properties and become more obvious as resolved components are removed by processes such as weathering and refining. Consequently UCMs are a prominent feature in oil-polluted sediments, biodegraded crudes and refineiT products. The characterisation of both aliphatic and aromatic unresolved complex mixtures (UCM
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37

Mercer, I. R. Geoffrey. "The effect of petroleum hydrocarbons on a freshwater environment, the Spring Gulch Wetlands, Canadian Forces Base Goose Bay, Labrador using pearl dace (Margariscus (Semotilus) margarita) as an environmental indicator." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ62400.pdf.

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38

Al-Hashem, Mona Abdulla Sayed Yousef. "Effects of oil pollution on the ecology, behaviour and physiology of the sand lizard (Acanthodactylus scutellatus) in Kuwait." Thesis, Swansea University, 2006. https://cronfa.swan.ac.uk/Record/cronfa42879.

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The effects of oil pollution on a sand lizard {Acanthodactylus scutellatus) were studied throughout 2002 and 2003 at Greater Al-Burgan oil fields in Kuwait. This study examined the effects on this species because large land-based oil spills (such as in Kuwait in 1991) present a new environmental concem. The most unexpected outcome of the study was that assumptions made about the degrees of contamination based on physical evidence (such as soot and tar) were not supported. All the classes of contaminated sites appeared to be equally contaminated. Population studies of the lizards and their ant
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39

Riebel, Philippe N. "Acute effects of petroleum hydrocarbons on the arctic littoral mysid, mysis oculata (Fabricius)." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61781.

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40

Agars, Robert C. "Assessment of the potential environmental effects of soluble hydraulic oil on natural waters." Thesis, [Richmond, N.S.W.] : Centre for Electrochemical Research and Analytical Technology, School of Science, Food and Horticulture, University of Western Sydney, 2001. http://handle.uws.edu.au:8081/1959.7/249.

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A series of physical and chemical analyses were conducted over a fifteen month period to establish the ecological risk, if any, of discharging minewater into aquatic ecosystems. Organic and inorganic analyses were used to determine the extent of contamination of minewater with soluble hydraulic fluids and other contaminant species. Throughout the sampling period the pithead discharge water exhibited a neutral pH and low levels of iron, manganese, zinc and potassium were found. Parallel toxicological and chemical studies identified elevated zinc levels above published toxicity levels for the te
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41

Martínez, Gómez Concepción. "Sublethal effects of chemical pollution in benthic fish species from marine Spanish waters." Doctoral thesis, Universidad de Alicante, 2013. http://hdl.handle.net/10045/36264.

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42

Agars, Robert C. "Assessment of the potential environmental effects of soluble hydraulic oil on natural waters /." [Richmond, N.S.W.] : Centre for Electrochemical Research and Analytical Technology, School of Science, Food and Horticulture, University of Western Sydney, 2001. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030409.114931/index.html.

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Thesis (M.Sc. (Hons))--University of Western Sydney, 2001.<br>"A thesis presented for the Degree of Master of Science (Honours), Centre for Electrochemical Research and Analytical Technology, School of Science, Food and Horticulture, University of Western Sydney, March 2001." Bibliography: leaves 62-67.
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43

Brice, Caitlin E. "The Detection of Amazonian Manatees (Trichechus inunguis) Using Side-Scan Sonar and the Effect of Oil Activities on Their Habitats in Eastern Ecuador." NSUWorks, 2014. http://nsuworks.nova.edu/occ_stuetd/8.

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Substantial hunting pressure and habitat destruction caused by oil extraction has critically endangered the Amazonian manatee in Ecuador. The current population status is unknown because an effective method to observe them in the wild has yet to be developed. This study explored whether the Amazonian manatee persists or has been extirpated in the eastern Ecuadorian Amazon utilizing side-scan sonar to increase odds of detection. Spatial differences in probability of detection were quantified if manatees were observed. The level of chemical contamination was determined and compared spatially and
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44

Hafez, Abdelaziz Tamer. "Ecotoxicity effects of oil Water Accommodated Fractions and oil Water Accommodated Fractions + Dispersant on cold environments : Acarita tonsa based bioassays and microbial community dynamics as monitoring tools." Thesis, Pau, 2021. http://www.theses.fr/2021PAUU3060.

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La pollution par les hydrocarbures est un problème émergent dans les mers du monde, en particulier dans les environnements froids où les procédures d'assainissement sont difficiles. Après un déversement de pétrole, la dynamique des vagues et d'autres facteurs d'altération introduisent la solubilisation des hydrocarbures, en particulier des hydrocarbures aromatiques polycycliques (HAP) dans la colonne d'eau, créant des fractions d'hydrocarbures solubilisés dans l'eau (WAF). Après une marée noire, des stratégies de lutte impliquent l'addition de dispersant afin de favoriser la biodégradation. Ce
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45

Lindgren, Magnus. "Engine exhaust gas emissions from non-road mobile machinery : effects of transient load conditions /." Uppsala : Dept. of Biometry and Engineering, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a481.pdf.

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46

Tran, Van Top. "Étude de la génération des streamers dans l'huile minérale sous tension impulsionnelle et alternative." Grenoble INPG, 1999. http://www.theses.fr/1999INPG0024.

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L'objectif de cette these est d'etudier la generation des streamers dans l'huile minerale sous tension impulsionnelle et tension alternative avec des conditions de champ largement variees en presence de certaines pollutions (particules et eau). Ce travail apporte une meilleure comprehension de la generation des phenomenes precurseurs du claquage. Les resultats obtenus mettent en evidence l'influence importante de la geometrie et des impuretes (particules, eau) sur la generation des streamers. Un effet remarquable de diminution du champ de generation avec l'augmentation du rayon de courbure de
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47

Miserazzi, Alison. "Perturbations comportementales, physiologiques et cellulaires chez des mollusques bivalves exposés à un pétrole brut dans un contexte mono ou multistress." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0055.

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L’utilisation d’outils adaptés, efficaces et fiables est fondamentale pour mesurer et contrôler l’impact environnemental autour des installations industrielles. Robuste, autonome et permettant un suivi à distance et en ligne, la Valvométrie HFNI (Haute Fréquence Non Invasive) est une solution possible pour le biomonitoring des écosystèmes aquatiques. Elle permet l’étude à distance et en temps quasi-réel du comportement et de différents traits de vie de groupes de mollusques bivalves dans le milieu naturel par numérisation de leur activité valvaire. Les animaux sont ainsi utilisés comme des tém
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48

Shears, John Richard. "The environmental assessment of oil pollution." Thesis, University of Southampton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294005.

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49

Walda, Walid. "Oil pollution on the Libyan coast." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252361.

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50

Ozcayir, Zepnep Oya. "Liability for oil pollution and collision." Thesis, University of Exeter, 1997. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549308.

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