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Dissertations / Theses on the topic 'Effect of pollution'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Vaartnou, Manivalde. "EPR investigation of free radicals in excised and attached leaves subjected to ozone and sulphur dioxide air pollution." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/29444.

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The X-band EPR spectrometry system was modified to allow for the in situ monitoring of free radical changes in attached, intact plant leaves, which were caused by stress factors such as exposure to excessive photon flux density, ozone or sulphur dioxide. This was done through use of the dewar insert of the variable temperature accessory as a guide, the construction of 'T' shaped cellulose acetate holders to which leaves could be attached with adhesive tape, and modification of the gas flow system used for controlled temperature studies. Kinetic studies of free radical formation were possible

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2

McLaughlin, Kirsty Elizabeth. "The effect of underwater noise pollution on fish." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.695677.

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Anthropogenic noise is a global pollutant, present in both terrestrial and aquatic ecosystems. Due to high species diversity and the characteristics of sound propagation in water, noise pollution in aquatic environments may be more detrimental than in terrestrial environments. Underwater noise affects the behaviour of mammals, fish and invertebrates, with changes to communicative and spatial behaviour among those frequently reported. However, relatively little work examining the effect of underwater noise on reproductive behaviour has been completed. Reproduction is essential for the prolifera

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3

Álvarez, Simón Daniel. "Effect of environmental pollution on asthma due to soybean." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457984.

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La soja es uno de los cultivos más valiosos del mundo y una importante fuente tanto de proteína vegetal como de aceite, pero también, es una causa de asma. En ciudades con puertos donde se carga o descarga soja, se han descrito brotes epidémicos de asma por soja. La medición de los niveles de aeroalérgenos de soja con métodos altamente sensibles es esencial en la evaluación de los riesgos para la salud que estos implican. En la actualidad, los aeroalérgenos de soja se cuantifican mediante ensayos ELISA que deben ser realizados en un laboratorio por personal especializado. Metodologías menos la

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4

Karr, Catherine J. "The effect of ambient air pollution on infant bronchiolitis /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/10945.

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5

Clark, Nina Annika. "Effect of ambient air pollution on development of childhood asthma." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2400.

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Asthma prevalence is increasing worldwide and the causes of this increase are largely unknown. There is increasing recognition of the importance of early environmental exposures in childhood asthma development. Outdoor air pollution has been shown to trigger asthma symptoms but its role in incident disease remains controversial. To address these questions, I investigated the effect of in utero and first year of life exposure to ambient air pollution on risk of asthma diagnosis in a nested case-control study. All children born in Southwestern British Columbia in 1999 and 2000 (N=37,401) were as

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6

Loth, Kevin William. "The effect of air pollution on hayfever in the UK." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284005.

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7

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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8

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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9

Loo, Hui. "Effect of surface waves on pollutant dispersion." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23273185.

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10

Parnia, Sam. "The effect of particulate matter pollution on bronchial epithelial cell responses." Thesis, University of Southampton, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437882.

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11

Alias, Naser Ibraheem, and Hanna Tkachenko. "Environmental pollution and its negative effect on the corrosion of metals." Thesis, Вид-во СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/8083.

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12

Pažitka, Marek. "Economics of Family: Effect of Air Pollution on Sex of Children." Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-194209.

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The Trivers-Willard hypothesis (TWH) states that parents in good conditions will bias the sex ratio toward sons and parents in poor conditions will bias the sex ratio toward daughters. The present study contributes to literature in several ways: a large, general, country population data set (N= 1 401 851) from modern contemporary society; first study in the Czech Republic; an inclusion of air pollution into the TWH estimation; and a more detailed focus on stillbirths. With the natality microdata from the Czech Statistical Office and data concerning the level of air pollution in the Czech Repub

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13

Lee, Mihye. "The Effect of Climate Change and Air Pollution on Public Health." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:14117765.

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The effects of temperature and air pollution on public health are comprehensive and ubiquitous. Therefore, this dissertation deals with the comprehensive topic of climate change and air pollution and their effects on public health. The first chapter examines the effect of temperature on mortality in 148 cities in the U.S. from 1973 through 2006. We focused on the timing of exposure to unseasonal temperature and temporal and spatial acclimation. The second chapter incorporated AOD data from satellite imagery with other predictors such as meteorological variables, land use regression, and spatia

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14

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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15

Tessier, Catherine. "Ecotoxicological impacts of zebra mussels, Dreissena polymorpha, a new food source for lesser scaup, Aythia affinis." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34468.

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Zebra mussels (Dreissena polymorpha) have invaded a great proportion of the waters of the eastern part of North America. This mollusk may be a useful sentinel species for bioaccumulation of heavy metals and organic contaminants in aquatic ecosystems. The zebra mussel's capacity to bioaccumulate cadmium at environmentally relevant exposure and to sequester metals in metal-binding proteins, metallothioneins, was investigated. Elevated (relative to control) concentrations of Cd$ sp{2+}$ were detected in Dreissena exposed to $ ge$2 $ mu$g Cd/liter suggesting that zebra mussels cannot regulate Cd$

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16

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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17

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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18

Thouron, Laëtitia. "Modélisation dynamique multi-échelle de la pollution atmosphérique en milieu urbain." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1206/document.

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La pollution atmosphérique en milieu urbain a été identifiée comme une cause importante d’impacts sanitaires, y compris de décès prématurés. En particulier, les concentrations ambiantes de polluants gazeux tels que le dioxyde d’azote (NO2) et de particules (PM10 et PM2,5) sont réglementées, ce qui implique que des stratégies de réductions d’émissions doivent être mises en place pour diminuer ces concentrations dans les lieux où la réglementation correspondante n’est pas respectée. Par ailleurs, la pollution atmosphérique peut contribuer à la contamination d’autres milieux, par exemple à traver

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19

Botha, Amanda Theophila. "Assessment of air pollution impacts on vegetation in South Africa." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54495.

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Field surveys and biomonitoring network experiments were conducted in selected areas in South Africa to assess possible air pollution damage to vegetation. During field surveys, atmospheric fluoride was identified as an important pollutant that damaged vegetation in residential areas north of Cape Town. Gaseous air pollutants, including acid deposition and acidic mist, probably play a major role in the development of characteristic air pollution injury symptoms observed on pine trees in the Eastern Transvaal area. The impact of urban air pollution in the Cape Town area was evaluated by exposi

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20

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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21

Al-Kandari, Mariam Hussain Murad. "Evaluation of the effect of air pollution on human health in Kuwait." Thesis, London School of Hygiene and Tropical Medicine (University of London), 1994. http://researchonline.lshtm.ac.uk/1620626/.

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Even before the 1990 war the populations of some areas of Kuwait was subject to severe atmospheric pollution. However, little was known about the effect of this pollution on health and on the use of health care. Three areas in Kuwait were chosen for study which were demographically similar and lay at a different distances to the north (i.e. usually downwind) of the industrial area. Plant in this area emits hydrogen sulphide, sulphur dioxide, hydrocarbons, nitrogen oxides, ammonia and carbon monoxide among other pollutants. A special survey was carried out to gather information on demographic,

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22

Riain, CaitriÌona MaÌire NiÌ. "An investigation of the effect of external flow and pollution concentration fields on the infiltration of pollution into naturally ventilated buildings." Thesis, University of Westminster, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433761.

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23

Nazareth, Cheryl. "INVASIVE SPECIES AND PANNE ECOSYSTEMS: THE EFFECTS OF ATMOSPHERIC POLLUTION." Thesis, Connect to resource online, 2008. http://hdl.handle.net/1805/1611.

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Thesis (M.S.)--Indiana University, 2008.<br>Title from screen (viewed on April 23, 2008). Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI). Advisor(s): Gabriel M. Filippelli, Catherine J. Souch, Gary D. Rosenberg. Includes vitae. Includes bibliographical references (leaves 85-87).

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24

盧慧 and Hui Loo. "Effect of surface waves on pollutant dispersion." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31224866.

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25

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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26

Redick, Melinda. "Effects of Sublethal Copper Exposure on Escape Behavior and Growth of Rana pipiens Tadpoles." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3119/.

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This research is designed to test how sublethal exposure to copper affects tadpole predator-escape behavior and how quickly tadpoles recover. After exposure, tadpoles were separated. Escape behavior was recorded for two-thirds of exposed tadpoles while one-third of the exposed population was measured weekly to determine growth and recovery. Control tadpoles were consumed within 15 minutes whereas those exposed to higher concentrations were consumed at a slower rate, which does not support the hypotheses. Although the rate of predation was lower, tadpoles exposed to higher Cu concentrations wer

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27

Snelgrove, Paul V. R. "Pollution detection models and habitat preference of the cryptofauna associated with the coral Madracis Mirabilis." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66126.

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28

Nicholson, Shaun. "Cytological and physiological biomarkers in Perna viridis (Linnaeus) (Bivalvia : Mytilidae)." Thesis, Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20792761.

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29

Singh, Ajit. "Quantifying the effect of atmospheric pollution and meteorology on visibility and tropospheric chemistry." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7828/.

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There are two distinct research foci within this thesis; the role of aerosol particle and trace gases on (i) visibility and (ii) tropospheric chemistry. This work investigates short and long term visibility, by exploring the combined influence of atmospheric aerosol and meteorology. Observations were fitted to a newly developed light extinction model to generate predictions of historic aerosol and gas scattering and absorbing properties, explaining long term visibility trends and their dependence on meteorological conditions. This model incorporates parameterizations of aerosol hygroscopicity,

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30

Piola, Richard Fabio Biological Earth &amp Environmental Sciences Faculty of Science UNSW. "Differential tolerance of introduced & native marine invertebrates to heavy metal pollution." Publisher:University of New South Wales. Biological, Earth & Environmental Sciences, 2007. http://handle.unsw.edu.au/1959.4/40673.

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In near-shore marine environments, two of the most prevalent anthropogenic disturbances affecting ecosystem diversity and function are the invasion of exotic species, and the release of toxic chemicals. Estuarine and harbour environments worldwide are dually subjected to high levels of toxic disturbance and ever increasing rates of invasion, via activities such as boating and shipping. It is not clear, however, whether the success of invasive species is influenced by the presence of toxic contaminants in these impacted environments. In particular, nonindigenous marine species (NIS) may be adva

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31

Parsons, Edward Michael. "Hong Kong's Cetaceans: the biology, socioecology and behaviour of Sousa chinensis and Neophocaenaphocaenoides." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31236108.

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32

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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33

Gheorghiu, Cristina. "Concentration-dependent effects of waterborne zinc on the interactions between Gyrodactylus turnbulli (Monogenea) and the guppy (Poecilia reticulata)." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102979.

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This research investigated the effects of waterborne zinc (Zn) on the interactions between guppies, Poecilia reticulata (Peters), and Gyrodactylus turnbulli Harris, 1986, a monogenean parasite of its skin and fins. The first objective was to determine if sublethal concentrations of waterborne Zn (up to 240 mug/L added to artificial freshwater) exerted a concentration-dependent effect on the population dynamics of Gyrodactylus on isolated guppies. Whereas survival of uninfected fish was unaffected, mortality of infected fish increased linearly with increasing Zn concentration. In addition, the

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34

Shirley, Mark David Foster. "The effect of metapopulation structure on evolutionary responses to cadmium pollution in Drosophila melanogaster." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320087.

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35

Nallani, Gopinath C. "Determination of Bioconcentration Potential of Selected Pharmaceuticals in Fathead Minnow, Pimephales promelas, and Channel Catfish, Ictalurus punctatus." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc33189/.

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The primary objective of this work was to determine the tissue-specific bioconcentration factors (BCFs) of the selected pharmaceuticals: norethindrone (NET), ibuprofen (IBU), verapamil (VER), clozapine (CLZ) and fenofibrate (FFB) in two freshwater fishes: fathead minnow and channel catfish. BCF tests on fathead followed the standard OECD 42-day test while a 14-day abridged test design was used in catfish exposures. Additional objectives included a) comparing the measured BCFs to the US EPA's BCFWIN model predicted values, b) comparing the BCF results from the standard and reduced tests, and c)

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36

Nguyen, Thi Tuyet Nga. "Analysing the effect of industrial and urban polluted zones on microbial diversity in the SaiGon -DongNai river system (Vietnam)." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS582/document.

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Le système fluvial Saigon-Dong Nai (SG- DN) est la plus importante source d'eau pour les douze villes et provinces du sud du Vietnam. Il est aujourd'hui gravement pollué par les activités humaines, agricoles, industrielles et domestiques, constituant une menace pour la vie de millions de personnes. Le ministère vietnamien des Ressources naturelles et de l'environnement a rapporté que les rivières ont reçu environ 1,54 milliard de litres d'eaux usées provenant de 70 parcs industriels par jour, dont 35% de déchets médicaux non traités, et que des tests effectués depuis 2006 ont montr

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37

Lawson, Sarah Louise. "Effect of copper on the gill structure of a euryhaline crab, Carcinus maenas (Crustacea: Decapoda)." Thesis, University of Plymouth, 1994. http://hdl.handle.net/10026.1/2708.

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A posterior gill of the common shore crab Carcinus maenas (Crustacea:Decapoda) was used to study the effects of sublethal copper concentrations on gill morphometry, and gill cell ultrastructure and distribution. Primarily, the ultrastructure and distribution of gill cells in the untreated gill of crabs acclimated to 35‰ seawater were characterised. Gill ultrastructure was subsequently shown to vary markedly at 10‰ compared to 35‰ seawater. Ultrastructural and distributional, rather than gross morphological, change occurred in the gill following exposure to copper at each salinity. Ultrastructu

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38

Sarakinos, Helen C. "The use of chemical analyses, bioassays and benthic biomonitoring in the toxicity assessment of complex industrial effluents." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0019/MQ44271.pdf.

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39

Bessling, Karen D. "Modeling the potential effects of growth reductions and changes in photosynthetic efficiency and needle retention on the stand-level growth of loblolly pine plantations." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43834.

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An existing individual tree growth and yield model (PT AEDA2) was modified study the potential effects of air pollution stress on the growth and yield of loblolly pine plantations. These modifications were based on the assumption that pollution stress on older trees could result in reductions in diameter and height growth, decreases in photosynthesis, and increased losses of older foliage, as demonstrated in some seedling studies. One modification applied differential levels of reductions of diameter and height increments to various percentages of trees. Results indicated no sizeable losses on

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40

Mulowska, Z. "The effect of SOâ†2 on mycorrhizal associations." Thesis, Lancaster University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239846.

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41

Shen, Pingping, and 沈萍萍. "Benthic infaunal community at an intertidal mudflat and molecular analysis of the dominant species Neanthes glandicincta (Polychaeta)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40887996.

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42

Sze, Wai-chung, and 施慧中. "The effect of chronic copper exposure on the energy budget of two mussels, perna viridis (L.) and septifer virgatus (Wiegmann)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31213613.

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43

Ren, Cizao. "Evaluation of interactive effects between temperature and air pollution on health outcomes." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16384/1/Cizao_Ren_Thesis.pdf.

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A large number of studies have shown that both temperature and air pollution (eg, particulate matter and ozone) are associated with health outcomes. So far, it has received limited attention whether air pollution and temperature interact to affect health outcomes. A few studies have examined interactive effects between temperature and air pollution, but produced conflicting results. This thesis aimed to examine whether air pollution (including ozone and particulate matter) and temperature interacted to affect health outcomes in Brisbane, Australia and 95 large US communities. In order t

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Ren, Cizao. "Evaluation of interactive effects between temperature and air pollution on health outcomes." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16384/.

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A large number of studies have shown that both temperature and air pollution (eg, particulate matter and ozone) are associated with health outcomes. So far, it has received limited attention whether air pollution and temperature interact to affect health outcomes. A few studies have examined interactive effects between temperature and air pollution, but produced conflicting results. This thesis aimed to examine whether air pollution (including ozone and particulate matter) and temperature interacted to affect health outcomes in Brisbane, Australia and 95 large US communities. In order t

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45

Loverde, Laura Elizabeth. "Effect of rate-limited interfacial tension reductions on the displacement of residual NAPLs during surfactant flushing." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/19280.

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46

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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47

Davies, Cheryl Margaret. "The effect of sunlight and other factors on the survival of starved enteric bacteria in natural waters." Thesis, University of Newcastle Upon Tyne, 1989. http://hdl.handle.net/10443/423.

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Results are reported from a series of experiments to determine the effects of certain environmental factors, namely, sunlight, temperature and , salinity on the survival of selected enteric bacteria which are of public health importance either as indicators of faecal pollution or The survival of the as pathogens. starved organisms in seawater and in freshwater microcosms exposed to artificial and natural sunlight, and in the dark, at a range of temperatures was investigated. An acridine orange direct viable count (AODVC) using an epifluorescent microscope was employed in addition to selective

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48

Abedi, Shafa Eddin. "The effect of cadmium pollution on apoptosis in the immune system of carp (Cyprinus carpio)." Thesis, Keele University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397508.

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49

Liu, Chuang. "Exposure to ambient air pollution and noise in relation to adverse health effect in children." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-173416.

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Adverse health impacts of ambient air pollution and noise have been reported previously. However, many published studies were in adults or aged population, little attention has been paid to children and in particular to noise and the potential combined effect with air pollution. In addition, we considered health parameters, which are underinvestigated so far. In our study, we explored associations between ambient air pollution and noise with blood pressure (BP), and exhaled nitric oxide (eNO) in school-aged children, using data from two German birth cohorts. Noise levels within a 50m buf

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Bambridge, Lorraine. "The effect of ozone and ambient pollution on the root and shoot growth of spruce." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239784.

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