Download or read book Source Identification of Fecal Pollution in the Tillamook Watershed written by Robert J. Bower and published by . This book was released on 2000 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The identification of sources of point and nonpoint fecal pollution is difficult to determine. Understanding the sources of fecal organisms in quality limited waters could greatly enhance our ability to restore and protect the water quality and habitat of these systems. Antibiotic resistance patterns of fecal streptococci bacteria were analyzed using discriminant analysis and these were in turn used to identify sources of fecal pollution in the Tillamook Bay watershed, Oregon. Antibiotic resistance patterns for humans, dairy cattle, and wild animals were established using a database of 830 isolates collected from known sources of feces in the Tillamook watershed. The average rate of correct classification (ARCC) for these three sources was determined to be 83%, with individual rates of 73% for human isolates, 88% for wild isolates, and 89% for dairy isolates. To test the application of this technique, water samples were collected for two independent studies. Samples were collected from a winter rainstorm event, as well as 9 samples over one year at the mouth of the five major rivers flowing into the Tillamook Bay. Results clearly demonstrate that monitoring bacterial sources is complex with results varying on a sample-by-sample, site-bysite, and river-by-river basis. Dairy and human sources contributed a majority of the fecal bacteria in all samples collected while wild sources consistently contribute a small percentage. Fecal coliform bacteria (FCB) and fecal streptococci bacteria (FSB) concentrations were also used in conjunction with source distributions to estimate the magnitude of individual samples and prioritize samples based on their water quality significance. These results demonstrate that antibiotic resistance profiles in fecal streptococci can determine sources of fecal pollution.
Download or read book Perspectives on Nonpoint Source Pollution written by and published by . This book was released on 1985 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Water Monitoring Research written by Tamim M. Younos and published by Water Resources Publication. This book was released on 2002 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an overview of the 21st century water monitoring technologies and their potential for water quality-protection. This book is best suitable as a reference for water monitoring agencies and graduate studies in water monitoring research.
Download or read book Patterns and Sources of Fecal Coliform Bacteria in Three Streams in Virginia 1999 2000 written by Kenneth Edward Hyer and published by . This book was released on 2003 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimized Identification of Fecal Pollution Sources in a Rural Tidal Watershed in Coastal New Hampshire written by Sana B. Hussain and published by . This book was released on 2011 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Escherichia coli ribotyping was used to identify fecal contamination sources in Cromment Creek, a tidal creek that drains into Great Bay and contaminates shellfishing beds." --From abstract.
Download or read book Microbial Source Tracking written by Michèle Gourmelon and published by Frontiers Media SA. This book was released on 2022-01-18 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Source Tracking written by Jorge W. Santo Domingo and published by Emerging Issues in Food Safety. This book was released on 2007 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a state-of-the-art review of the current technology and applications being utilized to identify sources of fecal contamination in waterways. - Serves as a useful reference for researchers in the food industry, especially scientists investigating etiological agents responsible for food contamination. - Provides background information on MST methods and the assumptions and limitations associated with their use. - Covers a broad range of topics related to MST, including environmental monitoring, public health and national security, population biology, and microbial ecology. - Offers valuable insights into future research directions and technology developments.
Download or read book Evaluation and Performance of Rapid Methods for Identifying and Tracking Sources of Fecal Pollution in Coastal Watersheds written by Vanessa Thulsiraj and published by . This book was released on 2014 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fecal contamination of coastal waters is known to degrade the environment and poses a health risk to recreational beach users. Fecal indicator bacteria (FIB) are used around the world to assess water quality and characterize fecal contamination. Elevated levels of FIB have been linked to health risks in epidemiological studies. However, some limitations exist with this indicator. FIB cannot be used to identify the specific sources as they originate from both human and animal sources. FIB may also persist and regrow in the environment. In order to effectively remediate the cause of pollution and characterize the hazards at chronically impaired beaches it is necessary to measure indicators that can provide information about the sources of the general fecal pollution. Tracking pollution sources at impaired beaches is critical to ensuring the health of coastal watersheds and reducing the incidence of swimming related illness. Molecular methods have gained popularity to identify and detect sources of fecal contamination using host-associated markers. The work presented here addresses areas warranting further research in the state of the science of water quality monitoring. In Chapter 2, we demonstrate that host-associated markers exhibit similar limits of detection in different water types and are robust in environmental field applications. Additionally, we provide a cost-benefit analysis and provide water quality managers with information supporting the inclusion of molecular methods in current monitoring practices. This body of work also presents novel methods for rapid and viability-based detection of recent fecal contamination with propidium monoazide (PMA-qPCR) and a field portable method covalently-linked IMS/ATP technique (Cov-IMS/ATP). In Chapters 3 and 4, we present results on optimization and specificity of the Cov-IMS/ATP. We evaluated the performance of Cov-IMS/ATP at three different watersheds for rapid quantification of enterococci, and show this method to be a robust tool in assessing water quality at complex sites. This work also addresses drawbacks of traditional qPCR to quantify viable fecal contamination. We validate the PMA-qPCR method and demonstrate its performance in detecting recent fecal contamination in environmental waters. Use of these methods demonstrates a new framework that can enhance current microbial source tracking studies and water quality monitoring.
Download or read book Water resources Investigations Report written by and published by . This book was released on 2003 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water resources Investigations Report written by Donna Belval Ebner and published by . This book was released on 2003 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tillamook Bay Bacteria Study written by John E. Jackson and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines on recreational water quality Volume 1 written by World Health Organization and published by World Health Organization. This book was released on 2021-07-12 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of coastal, estuarine and freshwater recreational environments has significant benefits for health and well-being, including rest, relaxation, exercise, cultural and religious practices, and aesthetic pleasure, while also providing substantial local, regional and national economic benefits. These guidelines focus on water quality management for coastal and freshwater environments to protect public health. The guidelines: 1. describe the current state of knowledge about the possible adverse health impacts of various forms of water pollution; and2. set out recommendations for setting national health-based targets, conducting surveillance and risk assessments, putting in place systems to monitor and control risks, and providing timely advice to users on water safety.These guidelines are aimed at national and local authorities, and other entities with an obligation to exercise due diligence relating to the safety of recreational water sites. They may be implemented in conjunction with other measures for water safety (such as drowning prevention and sun exposure) and measures for environmental protection of recreational water use sites.
Download or read book Saving Bays and Estuaries written by and published by . This book was released on 1988 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual of Environmental Microbiology written by Cindy H. Nakatsu and published by John Wiley & Sons. This book was released on 2020-08-11 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The single most comprehensive resource for environmental microbiology Environmental microbiology, the study of the roles that microbes play in all planetary environments, is one of the most important areas of scientific research. The Manual of Environmental Microbiology, Fourth Edition, provides comprehensive coverage of this critical and growing field. Thoroughly updated and revised, the Manual is the definitive reference for information on microbes in air, water, and soil and their impact on human health and welfare. Written in accessible, clear prose, the manual covers four broad areas: general methodologies, environmental public health microbiology, microbial ecology, and biodegradation and biotransformation. This wealth of information is divided into 18 sections each containing chapters written by acknowledged topical experts from the international community. Specifically, this new edition of the Manual Contains completely new sections covering microbial risk assessment, quality control, and microbial source tracking Incorporates a summary of the latest methodologies used to study microorganisms in various environments Synthesizes the latest information on the assessment of microbial presence and microbial activity in natural and artificial environments The Manual of Environmental Microbiology is an essential reference for environmental microbiologists, microbial ecologists, and environmental engineers, as well as those interested in human diseases, water and wastewater treatment, and biotechnology.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1988 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of the General Meeting of the American Society for Microbiology written by American Society for Microbiology. General Meeting and published by . This book was released on 2006 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fecal Pollution Modelling Source Identification and Management in the Southeastern Coastal Zone written by Rense Heath Kelsey and published by . This book was released on 2006 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
