Search results for: anthropogenic-pollution-of-aquatic-ecosystems

Anthropogenic Pollution of Aquatic Ecosystems

Author : Donat-P. Häder
File Size : 28.48 MB
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Fresh Water Pollution Dynamics and Remediation

Author : Humaira Qadri
File Size : 63.88 MB
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Freshwater is a finite resource and is being deteriorated directly and indirectly by anthropogenic pressures. Preserving the quality and availability of freshwater resources is becoming one of the most pressing environmental challenges on the international horizon. To ensure the preservation as well as availability of freshwater resources, there is a need to understand the ecology of the freshwater systems, pollution problems, their impacts, restoration techniques to be opted and the conservation measures. In this backdrop the present book on ‘Freshwater Pollution Dynamics and Remediation’ has been compiled. The book provides an understanding about the present state of art, pollution impacts including the changes in the environmental quality as well as the shift in the aquatic biological communities of the fragile freshwater ecosystems. Besides, the impact of deteriorating quality of the freshwater ecosystems on the animal and human health is also discussed in detail. This book provides a comprehensive account of the techniques based on updated research in biotechnology, bio-remediation, phyto-remediation and nano-bioremediation. The role of biosorpers and biofilms as a remediation tool has also been detailed. The book is a ready reference for researchers, scientists and educators who are involved in the freshwater pollution, remediation and management studies. The book editors with an expertise in diverse research fields in freshwater ecosystems have congregated the most inclusive research accounts on the freshwater pollution and remediation and thus developed a repository of diverse knowledge on the subject

Freshwater Pollution and Aquatic Ecosystems

Author : Gowhar Hamid Dar
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This new volume addresses the environmental impacts of pollution on freshwater aquatic ecosystems and presents sustainable management and remediation practices and advanced technology help to address the different types of pollutants. Freshwater Pollution and Aquatic Ecosystems: Environmental Impact and Sustainable Management considers the need for sustainable, efficient, and cost-effective tools and technologies to assess, monitor, and properly manage the increasing issues of aquatic pollution. It provides detailed accounts of the phenomena and mechanisms related to aquatic pollution and highlights the problems and threats associated with pollution contamination in freshwater. It provides useful insight into the sustainable and advanced pollution remediation technology adopted by different countries for the monitoring, assessment, and sustainable management of pollution. The chapters in the volume evaluate the sources of harmful pollutants, which include industrial effluents, sewage, and runoff from agricultural industries, which result in toxic microbes, organic waste, oils, and high load of nutrients. Unsustainable management practices of domestic sewage and indiscriminate use of chemical pesticides lead to the technological disturbance of aquatic biota. In addition to harming aquatic biota, these pollutants find their way into the human body through inhalation, ingestion, or absorption and finally tend to bio-accumulate in trophic levels of the food chain, which poses a major risk to human beings. This book will be a valuable resource for ecologists, environmentalists, scientists, and many others for their work in understanding and management of aquatic pollutants in freshwater biospheres.

Anthropogenic Impacts on the Microbial Ecology and Function of Aquatic Environments

Author : Maurizio Labbate
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Aquatic ecosystems are currently experiencing unprecedented levels of impact from human activities including over-exploitation of resources, habitat destruction, pollution and the influence of climate change. The impacts of these activities on the microbial ecology of aquatic environments are only now beginning to be defined. One of the many implications of environmental degradation and climate change is the geographical expansion of disease- causing microbes such as those from the Vibrio genus. Elevating sea surface temperatures correlate with increasing Vibrio numbers and disease in marine animals (e.g. corals) and humans. Contamination of aquatic environments with heavy metals and other pollutants affects microbial ecology with downstream effects on biogeochemical cycles and nutrient turnover. Also of importance is the pollution of aquatic environments with antibiotics, resistance genes and the mobile genetic elements that house resistance genes from human and animal waste. Such contaminated environments act as a source of resistance genes long after an antibiotic has ceased being used in the community. Environments contaminated with mobile genetic elements that are adapted to human commensals and pathogens function to capture new resistance genes for potential reintroduction back into clinical environments. This research topic encompasses these diverse topics and describes the affect(s) of human activity on the microbial ecology and function in aquatic environments and, describes methods of restoration and for modelling disturbances.

Handbook of Research on the Adverse Effects of Pesticide Pollution in Aquatic Ecosystems

Author : Wani, Khursheed Ahmad
File Size : 83.88 MB
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Certain types of pesticides are widely used in agriculture in all parts of the world due to their relatively low cost, broad spectrum of activity, and high efficiency. These pollutants contaminate not only the surrounding soils and water but, in many cases, also enter into the drinking water. The Handbook of Research on the Adverse Effects of Pesticide Pollution in Aquatic Ecosystems provides emerging research exploring the theoretical and practical aspects of the prevention of accumulation of toxic pollutants such as agrochemicals and organochlorine pesticides in aquatic ecosystems and applications within ecology and agriculture. Featuring coverage on a broad range of topics such as pesticide monitoring, metabolites, and risk assessment, this book is ideally designed for scientists, researchers, engineers, policymakers, agricultural specialists, industrialists, academicians, and students seeking current research on the risks of water contaminants in small ecosystems.

Water Use in MENA Countries 2017

Author : Müfit Bahadir
File Size : 90.36 MB
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Water is an indispensable element for human life. However, clean water supply is a worldwide issue nowadays. This is because of pollution due to anthropogenic activities that are related to the increase of human population. The man-induced inputs as important sources of pollution contribute to the contamination of water quality in rivers and reservoirs. These pollutants include domestic organic wastes, industrial wastes, heavy metals, oil and grease, polycyclic aromatic hydrocarbons, endocrine disrupting chemicals, persistent organic pollutants, etc., which can deteriorate the natural chemistry of water. Monitoring the pollutant levels in water bodies is an important issue, since their elevated levels could be hazardous to biota that live in the water body and the sedimentary compartment of the aquatic ecosystems, partly or mostly being the natural resources in the food chain up to human being. Therefore, water pollution will always remain a never-ending story, today’s society will be faced with. To conclude, the aim of this workshop was to update the knowledge on water related issues and to discuss practical solutions to reduce (if even not to stop) water pollution while integrating experts from technological, environmental and social-economic fields.

Assessment and Control of Nonpoint Source Pollution of Aquatic Ecosystems

Author : S. O. Ryding
File Size : 49.24 MB
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This book is not meant to be an extensive technical treatise on the topic of nonpoint source pollution, but rather it is intended to provide sufficient information to allow interested persons to acquire a broad, general knowledge of the assessment, causes and control of nonpoint source pollution and bring this knowledge together in a form that is useful for both scientific and management purposes.

Shoorabil Lake

Author : Ali Ahadzadeh
File Size : 56.64 MB
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Anthropogenic pollution is the most important among the problems due to human-nature interactions. Pollution causing the loss of water quality of aquatic ecosystems has stimulated to develop such studies which can reveal causes and mechanisms of the loss of surface water quality. The important sources of water pollution are domestic wastes, industrial effluents, and agricultural wastes. Other sources include oil spills, atmospheric deposition, marine dumping, radioactive waste, global warming, and eutrophication. Among these, domestic waste (domestic sewage) and industrial waste generate maximum pollutants, which make their way to groundwater and surface water bodies. The existence of water resources and the applying of efficient solutions in the process of their aimed use and conservation in the earth have vital role for human normal activity and the maintenance of the ecological balance of the environment. Water is reward of nature which is irreplaceable natural resource for humanity existence.

Determination of Selected Heavy Metals in River Mukurumudzi to Establish Potential Contamination from Land Based Activities and Sources

Author : Edwin Mwashinga
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Master's Thesis from the year 2018 in the subject Environmental Sciences, grade: 76, , language: English, abstract: Rivers are the major sources of water being used in cities and its environs. This water may either be treated or untreated. River banks could be very busy, varied activities ranging from farming to industrial activities and other domestic household activities are conducted. The present study aimed at investigating the potential sources of selected heavy metal contaminants in River Mukurumudzi, Kwale County. Water and sediments were sampled in four points along the river impacted by mining, human settlements and agricultural activities for three different seasons. The samples were analyzed for Iron, Lead, Cadmium, Copper and Arsenic using an AAS. Sediment quality was also analysed by the calculation of CF and I-geo values. Interpretation of results was conducted using Minitab statistical software and Excel spreadsheets. The range of metals in water during the dry season was Fe (0.19-0.32) mg/l, Pb, Cu, Cd and As were below the detection limits. The range of metals in water during the short rain was Fe (0.12-1.25) mg/l and BDL for all other analysed metals. The range of metals in water during the long rain season was Fe (0.07-1.82) mg/l, Cu (0.08-0.11) mg/l and BDL for all the other analysed metals. The range of metals in sediments during dry season was Fe (0.13-1.44) ppm, Pb (0.08-0.54) ppm, and BDL for all other analysed metals. The range of metals in sediments during short rain season was Fe (0.23-1.73) ppm, Pb (0.12-0.27) ppm, and BDL for all other analysed metals. The range of metals in sediments during the long rain season was Fe (0.25-2.75) ppm, Pb (0.09-0.34) ppm, Cu (0.10-0.14) ppm, and BDL for all other analysed metals. The CF values for sediments were all

The Sava River

Author : Radmila Milačič
File Size : 34.24 MB
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This volume provides a comprehensive overview of environmental aspects of the Sava River, which is the greatest tributary to the Danube River and the major drainage river system of South Eastern Europe. Hydroelectric power plants, river traffic, intensive agricultural activities, heavy industry and floods have considerable influence on the environment and biota in the basin. Summarizing the results that were gathered in the course of EU, bilateral and national projects, the book highlights the most important stressors and helps readers to better understand the impact of anthropogenic activities on the function of river basins. Topics include: transboundary water cooperation between the riparian countries; climate change projection, including its impact on flood hazards; evaluation of anthropogenic pollution sources; pollution of sediments, metal bioavailability and ecotoxicological and microbiological characterization of the river. The biological part also addresses quality aspects related to wildlife in river aquatic ecosystems (algae, macrophytes, zooplankton, macroinvertebrates and fish) and riparian ecosystems (amphibians, reptiles, birds and mammals). The general state of biodiversity and pressures caused by invasive aquatic species are also discussed.

Water Quality for Ecosystem and Human Health

Author : Geneviève M. Carr
File Size : 76.89 MB
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This document is intended to provide an overview of the major components of surface and ground water quality and how these relate to ecosystem and human health. Local, regional and global assessments of water quality monitoring data are used to illustrate key features of aquatic environments, and to demonstrate how human activities on the landscape can influence water quality in both positive and negative ways. Clear and concise background knowledge on water quality can serve to support other water assessments.

Particulate Plastics in Terrestrial and Aquatic Environments

Author : Nanthi S. Bolan
File Size : 46.2 MB
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The manufacture of plastic as well as its indiscriminate disposal and destruction by incineration pollutes atmospheric, terrestrial, and aquatic ecosystems. Synthetic plastics do not break down; they accumulate in the environment as macro-, micro-, and nanoplastics. These particulate plastics are a major source of pollutants in soil and marine ecosystems. Particulate Plastics in Terrestrial and Aquatic Environments provides a fundamental understanding of the sources of these plastics and the threats they pose to the environment. The book demonstrates the ecotoxicity of particulate plastics using case studies and offers management practices to mitigate particulate plastic contamination in the environment. Features · Describes physical and chemical properties of particulate plastics in terrestrial and aquatic ecosystems · Presents information on characteristics of particulate plastics as impacted by weathering processes · Provides numerous approaches for managing particulate plastic contamination · Identifies sources of particulate plastics in the environment; distribution and characteristics of particulate plastics; and management strategies of particulate plastics Written by a global team of scientists, this book is for researchers in the fields of environmental safety and waste management or individuals interested in the impact of particulate plastics on environmental health.

Towards a Theory of the Functioning of Aquatic Ecosystems

Author : Aleksandr Fedorovich Alimov
File Size : 48.95 MB
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Contents: Structure of communities of organisms and ecosystems: Influence of biotic and abiotic factors; Dynamics of biomass; Productivity of water-bodies. Relationship between structural and functional characteristics; Biotic balance and energy flows in ecosystems; Flows of matter and information in ecosystems. Matter flows. Information flows; Stability and steadiness of aquatic ecosystems; Aquatic ecosystem functioning patterns.

Effects of Heavy Metals on Omega 3 Fatty Acids

Author : Veronica M. Muinde
File Size : 55.11 MB
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Over the years, heavy metal pollution has continued to cause instability to aquatic ecosystems. The pollution is mostly from anthropogenic sources like mining activities, sewage treatment plants and non point sources such as agriculture. Lake Victoria being the largest fresh water lake in Africa, has suffered a lot of pollution emanating from the aforementioned sources. The lake plays a major economic role in the economies of the riparian nations especially from fishing. Fish is the major source of polyunsaturated fatty acids (PUFAs) such as omega - 3 and omega - 6 which are very beneficial to human body. Once an aquatic environment is polluted with heavy metal pollutants, it may lead to high intake of the pollutants by the fish hence lowering the levels of the essential fatty acids. This study was carried out so as to investigate if there was any impact of heavy metal pollutants on the types and levels of omega -3 in tilapia fish and also in microalgae which is the basic food of the fish. The results showed presence of heavy metal pollutants in water, sediments, microalgae and fish. Tilapia fish was found to have high proportions of PUFAs which have numerous benefits in the body.

Toxic Contaminants and Ecosystem Health

Author : Marlene S. Evans
File Size : 81.98 MB
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Air Pollutants and their Effects on the Terrestrial Ecosystem Edited by Allan H. Legge Because the sources and interactions are so complex, only an integrated approach to research is effective in identifying pollution problems. This sourcebook collects material from a range of disciplines to explore the effects of pollution on vegetation, soils, and forestry. It draws on the expertise of environmental chemists, physicists, photochemists, agricultural scientists, and others to examine how pollutants affect the ecosystem and interact with each other. 656 pp. (0 471-08312-7) 1986 Cadmium in the Aquatic Environment Edited by Jerome O. Nriagu Here's a comprehensive account of current research on the chemistry and toxicology of cadmium in natural waters. It discusses the sources, distribution, and fate of cadmium in aquatic ecosystems, including coverage of the biocycling and exotoxicity of cadmium to natural and fresh water biota. A succinct review of the analytical chemistry of cadmium in natural waters is also included. The contributors emphasize general principles rather than comprehensive documentation, making this volume accessible to a wide audience. 332 pp. (0 471-85884-6) 1987 Chromium in the Natural and Human Environments Edited by Jerome O. Nriagu and Evert Nieboer There's a growing concern about the fate and effects of chromium in the environment. This volume provides a comprehensive assessment of the uses of chromium, its sources (natural and anthropogenic) and occurrences in the air, water, and soil. Its toxicity to terrestrial and aquatic biota is examined in relation to its chemistry and biochemistry, and the role of chromium as an essential element is properly evaluated. The critical assessment of the published literature and the large ensemble of references to chromium in diverse disciplines should make the volume essential reading for researchers and serious students of environmental and occupational health effects of metals. 592 pp. (0 471-85643-6) 1988

Pollution of Water Bodies in Latin America

Author : Leobardo Manuel Gómez-Oliván
File Size : 79.26 MB
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The indiscriminate use of chemical substances in industrial processes and anthropogenic activities, have resulted in the release of these compounds into aquatic ecosystems through municipal, hospital and industrial discharges, producing various undesired effects on the environment and on species of ecological interest. These compounds, such as metals, pesticides, emerging pollutants and other substances are persistent and susceptible to biotic and/or abiotic transformations, yielding metabolites that can be more toxic than the original compounds. In this book, researchers from diverse environmental science disciplines share their experiences in countries such as Argentina, Brazil, Colombia and Mexico, and critically examine the problem of contaminants in aquatic ecosystems in Latin America, as well as the risks presented by their presence.

Assessment and Control of Nonpoint Source Pollution of Aquatic Ecosystems A Practical Approach

Author : Marjorie M. Holland
File Size : 80.82 MB
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This is a practical, extensively documented guidebook on the assessment and control of nonpoint source pollution from agricultural, urban, construction, and forested areas, and on the health of aquatic ecosystems and human use of water resources. It covers atmospheric deposition as a mode of transport for nonpoint and point source pollutants that include eroded sediments, nutrients, heavy metals, organic and inorganic chemicals, chlorides, and microorganisms. The book presents examples and references that highlight past and present successes and failures and give guidance for decision-makers and technical staff in designing site-specific solutions to local nonpoint source pollution problems.

Ecological Assessment of Environmental Degradation Pollution and Recovery

Author : O. Ravera
File Size : 86.27 MB
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The Ispra Course on Ecological Assessment of Environmental Degradation, Pollution and Recovery'' was structured according to the following topics: (a) terrestrial and aquatic ecosystem concept; (b) structure, functions and evolution of the ecosystem in relation to the natural and anthropogenic influences, and (c) concept of stress, assessment and restoration of terrestrial and aquatic ecosystems. These general concepts were developed in a series of lectures presented by well-known experts in their specific fields, taking into account the ecological principles and environmental management. For the various aspects of the environmental problems, the state-of-the-art, the principles of restoration techniques, the results obtained by their application and the research needs to acquire a better knowledge of the ecological processes, were discussed. The lectures were illustrated by several case studies concerning forests, lakes, reservoirs, rivers, soil and the interrelations between air and terrestrial and aquatic ecosystems. This book contains the lectures presented at the course, reviewed by the authors, and complemented throughout with numerous figures and tables.

Ecology of Freshwater Nematodes

Author : Walter Traunspurger
File Size : 66.12 MB
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Nematodes are incontestably the most numerous and the most diverse metazoans in freshwater habitats, and these properties bestow exceptional significance to their role in the environment. An array of functional roles has been attributed to them: they are grazers on bacteria and primary producers, regulators of decomposition of plant material, predators, prey for other animals, and closely associated symbionts of bacteria and other organisms. Freshwater nematodes are central in the context of environmental monitoring, pollution assessments, global warming and food webs, and this is increasingly being recognized. Moreover, the short generation time (a few days to months) of many species makes nematodes ideal for laboratory studies. This book offers guidelines for studying the ecology of free-living nematodes, including detailed protocols and case studies.

Sustaining Large Marine Ecosystems The Human Dimension

Author : Timothy M. Hennessey
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The shift away from the management of individual resources to the broader perspective of ecosystems is no longer confined to academia and think tanks where it first began; the ecosystem paradigm also is beginning to take root in government policy and programs. This volume provides innovative and timely approaches for improving and sustaining socioeconomic benefits from LMEs. The authors describe methodologies and actions for moving forward in halting the downward resource sustainability spiral and advancing toward the recovery of depleted fish stocks, restoration of degraded habitats, and reduction and control of pollution within the framework of an ecosystem-based approach for the governance of LMEs. * First book to ever publish that focuses on the human dimension of large marine ecosystem management * Offers set of guidelines for possible interrelationship management programs * Addresses taxing issues and problems pertaining to the world's marine ecosystems * Provides a matrix of the interdependence of economic, social, cultural and governance elements