Download or read book Impacts of Contaminants and Nutrients in Bleached Kraft Mill Effluent on Benthic Insect and Periphyton Communities written by Joseph M. Culp and published by . This book was released on 1996 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses results from artificial stream experiments in relation to the effects of effluent stressors and nutrient enrichment on benthic algal and invertebrate communities; also compares results from autumn 1993 and 1994 to document between-year variability in the relationships between effluent additions, and effects on primary and secondary producers. Results from spring 1994 are contrasted with those from autumn 1993 and 1994 to assess the importance of seasonal changes in moderating the nutrient-contaminant effects on benthic food web interactions. The artificial stream experiments were designed to decouple the effects on the riverine food web of the potentially confounding effects of nutrients and contaminants within effluent. By comparing the effects of nutrient and effluent treatments on different trophic components of the food web, the study was able to provide a mechanistic understanding of the stimulatory and/or inhihbitory effects of pulp mill effluents on the benthic food webs of the Athabasca River.
Download or read book Environmental Fate and Effects of Pulp and Paper written by Mark R. Servos and published by CRC Press. This book was released on 2020-02-03 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there have been emerging concerns regarding the fate and effects of pulp and paper mill effluents on the environment. Countries throughout the world are focusing attention on the implementation of regulatory and monitoring programs. In response, industry has begun to implement a variety of process and treatment technologies designed to minimize or eliminate the potential impacts. Environmental Fate and Effects of Pulp and Paper Mill Effluents explores the most active and critical current research and experimentation from around the world. This comprehensive overview examines the identity and origin of chemicals in pulp mill effluents, environmental fate of chemicals from pulp and paper mills, bioaccumulation of substances from pulp mills to fish and wildlife, field and laboratory studies of biochemical and whole organism responses associated with pulp and paper effluents, integrated monitoring and future research, and policy directions of this rapidly evolving field. Written by prominent scientists from around the world with contributions from industry, government, and academia, this important new book provides a balanced global perspective of the recent scientific findings and the challenges being faced in the immediate future.
Download or read book Multiple Stressors written by S. M. Swanson and published by IWA Publishing. This book was released on 2004-07-31 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a pressing need for developing and testing a general set of theories in order to provide a confident basis for prediction of multiple stressor effects. Confident prediction is central to confident decision making in water pollution control. Consequently, WERF commissioned this study which has as its goal to provide a study design based on good science that helps establish a general, conceptual approach to multiple stressors. The objectives of the study are to develop a flexible and scientifically defensible conceptual model of the environmental effects of multiple stressors on river and stream ecosystems; develop a study design to test the conceptual model of multiple stressor effects; and, document the process used to arrive at the conceptual model. The multiple stressor conceptual model includes two main components: (1) a diagram that portrays the main features of the study team's understanding of how multiple stressors would interact and the nature of the effects; and (2) a series of three testable risk hypotheses. These two components follow the guidance provided by the U.S. EPA for ecological risk assessment. The proposed conceptual model encompasses the following key assumptions: interactions between the stressor and the ecosystem are dependant upon the existing baseline conditions; for each stressor/baseline combination there will theoretically be a functional and a structural response; effects on habitat are caused by structural or functional responses to stressors; and effects on habitat can cause structural or functional responses.
Download or read book Combined Effects of Dissolved Oxygen Level and Bleached Kraft Pulp Mill Effluent and Municipal Sewage on a Mayfly Baetis Tricaudate written by Richard Bruce Lowell and published by The Study. This book was released on 1996 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarises research conducted to determine how the impacts of effluents produced by pulp mills and sewage plants in northern Alberta interact to potentially produce a variety of effects on downstream aquatic biota. The investigators carried out experiments in artificial streams using pulp mill and sewage effluent from a kraft mill on the Athabasca River near Hinton, Alberta. Using a 2x2 factorial design, mayflies were exposed to either low or high levels of effluent concentration, levels typical of what benthic invertebrates are likely to experience in some benthic microhabitats downstream of Hinton during the winter. Results of the two-week experiment are presented, including degree of mayfly survival for each of the effluent treatments.
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 1999 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of a Bleached Kraft Mill Effluent on Periphyton and Macroinvertebrates in a Streamside Mesocosm Study Leaf River Mississippi written by Joan Ikoma and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Northern River Basins Study written by Northern River Basins Study (Canada) and published by . This book was released on 1996 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report to the federal ministers of Environment and Indian & Northern Affairs, Alberta's Minister of Environmental Protection, and NWT's Minister of Renewable Resources. Summarises the main scientific findings of the Northern River Basins Study, which was established to examine the relationship between industrial, municipal, agricultural, and other development and the Peace, Athabasca, and Slave River basins. Reviews the characteristics of the northern river basins and their peoples, the organisation of the Study, and major findings in the areas of environmental overview, use of aquatic resources, traditional knowledge, flow regulation, fish distribution and habitat, nutrients, dissolved oxygen, contaminants, drinking water, ecosystem health, modelling, human health, and cumulative effects. Recommendations by the Study Board, First Nations, and scientific advisors regarding such issues as basin management, monitoring, research, public participation, and a successor organisation are then presented. Also includes a summary of opinions, suggestions, and recommendations expressed at 17 community workshops held throughout the northern river basins area.
Download or read book Technical Reports of the Northern River Basins Study by Subject and Geographical Area Studied written by Mark S. J. Ouellett and published by . This book was released on 1997 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists Northern River Basins Study technical reports by issue number, subject, and geographic area studied. Subject areas used to classify the reports are: hydrology/hydraulics, nutrients/dissolved oxygen, contaminants, food chain, drinking water, other uses, traditional knowledge, and synthesis and modelling. Ten geographic divisions are used: three each for the Athabasca and Peace Rivers, and one each of the Wapiti/Smoky rivers, Peace-Athabasca Delta, Lake Athabasca, and Rivière des Rochers/Slave River.
Download or read book The Effects of a Bleached Kraft Mill Effluent on Periphyton and Macroinvertebrates in a Streamside Mesocosm Study Willamette River Oregon written by William Arthurs and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrient Enrichment in the Peace Athabasca and Slave Rivers written by Patricia A. Chambers and published by Canadian Government Publishing. This book was released on 1996 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesises results from research and monitoring studies undertaken to characterise nutrient loading from all point and diffuse sources in northern Alberta river basins. Also evaluates the impacts of nutrient loading on river chemistry, assesses the response of riverine biota to nutrient loading from pulp mill and municipal effluents, quantifies nutrient responses of benthic biota, and investigates interactions between nutrients and contaminants in pulp mill effluents on food webs. The findings are used to assess the state of aquatic ecosystem health and to develop scientific and management recommendations for the northern river basins.
Download or read book Environmental Toxicology and Chemistry written by and published by . This book was released on 2002 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Bleached Kraft Mill Effluent BKME on the Water Quality and Benthic Community Structure in St Joseph Bay Gulf County Northwest Florida Panhandle written by Glenn L. Butts and published by . This book was released on 1986 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of a Bleached Kraft Mill Effluent on Periphyton and Macroinvertebrates in Streamside Mesocosm Studies written by Judy Dudley and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Bleached Kraft Pulp mill Effluent on Periphyton Tissue written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this experiment was to use an artificial stream system to quantify the effect of PME on periphyton biomass and community structure and to compare contaminant concentrations measured in periphyton tissue exposed to a variety of PME concentrations. [...] To assess PME contaminant concentrations in periphyton tissue, periphyton growing on the sides of the streams were sampled at the end of the experiment. [...] The results of PCA are given in Figures 3 and 4 and indicate that PME effects, not only the amount of periphyton present, but also the nature of the community itself. [...] Concentrations of 2,3,7,8-T4 CDD fell below the detection limit in all ten samples while concentrations of 2,3,7,8-T4 CDF exceeded the detection limit only in the four 3% streams and in one of the 1% streams. [...] The results of the artificial stream experiments clearly indicate that the most pronounced impact of PME on the periphyton community was that of nutrient enrichment and subsequent increases in primary production.
Download or read book Pulp Paper Mill Effluent Environmental Fate Effects written by Dennis L. Borton and published by DEStech Publications, Inc. This book was released on 2004 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: " ... 5th International Conference on Fate and Effects of Pulp and Paper Mill Effluents which was held in Seattle, Washington, June 1-4, 2003"--Acknowledgements.
Download or read book Effects of Biologically Stabilized Bleached Kraft Mill Effluent on the Periphyton Community in Southern Experimental Streams for 1979 to 1981 written by and published by . This book was released on 1984 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Biologically Treated Bleached Kraft Mill Effluent on the Periphyton Community in Southern Experimental Streams for 1976 and 1977 written by Dennis L. Borton and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
