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Book E Coli Distribution and Streambed Processes of the Greybull River WY

Download or read book E Coli Distribution and Streambed Processes of the Greybull River WY written by Corey J. Beaugh and published by . This book was released on 2012 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Escherichia coli (E. coli) is used as an indicator species for sewage or animal waste contamination in water systems. Currently, Wyoming is initiating TMDLs to decrease E. coli concentrations in the Greybull River through the implementation of BMPs. Land use in the Greybull watershed (1,100 mi2) is predominantly irrigated agriculture and ranching, with an abundant natural wildlife population present; these are the assumed primary sources of E. coli loading along with human/septic. Initiating BMPs on these sources may not effectively reduce E. coli concentrations observed in the thalweg if E. coli is originating from secondary sources, such as pockets of fine, in-channel sediment. High discharge resulting from the onset of seasonal snowmelt runoff can re-suspend and transport sediment and bacteria from the streambed, as well as wash overbank sediment/bacteria back into the channel. We investigated E. coli levels in the water surface, throughout the water column, and in channel bed sediments bi-monthly from May-September 2009 and 2010. Results showed that flow conditions at the peak of snowmelt runoff, had a profound effect on E. coli levels. Before "peak-flow" conditions (baseflow), E. coli concentrations in the water column were generally low, while E. coli levels in the sediment were relatively high, with the greatest proportion of clay-particles being observed. At or near peak-flow conditions, E. coli concentrations in the water column were the greatest, while levels in the sediment were the lowest, with clay-particles being flushed out of the system. Late-summer baseflow conditions showed a decline in E. coli concentrations in the water column, and a gradual incline in both E. coli levels in the sediment and amount of clay-particles in the channel bed. Precipitation acted to drastically increase E. coli concentrations in the water column after peak-flow, but before peak-flow had a negligible or negative effect on E. coli levels.

Book Water Quality Assessments

Download or read book Water Quality Assessments written by Deborah V Chapman and published by CRC Press. This book was released on 1996-08-22 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidebook, now thoroughly updated and revised in its second edition, gives comprehensive advice on the designing and setting up of monitoring programmes for the purpose of providing valid data for water quality assessments in all types of freshwater bodies. It is clearly and concisely written in order to provide the essential information for all agencies and individuals responsible for the water quality.

Book Genetic Diversity of Escherichia Coli in Soils and Sediments of an Agricultural Watershed and Their Spatiotemporal Influences on Water Quality

Download or read book Genetic Diversity of Escherichia Coli in Soils and Sediments of an Agricultural Watershed and Their Spatiotemporal Influences on Water Quality written by Gregory Stuart Piorkowski and published by . This book was released on 2013 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT Cont.'d: The relationship of land use type to particle attachment reinforces the hypothesis that strain-specificity in attachment behaviour can affect the transport of E. coli in fluvial systems. This work provides evidence that putatively naturalized strains in cultivated fields can contribute a large part to waterborne E. coli, and that reach-specific hydrological factors need to be considered when relating sediment- to waterborne E. coli in fluvial systems.

Book Distribution and Occurrence of Escherichia Coli in Water and Sediments at Grand Glaize Beach in Lake of the Ozarks State Park

Download or read book Distribution and Occurrence of Escherichia Coli in Water and Sediments at Grand Glaize Beach in Lake of the Ozarks State Park written by Jordan Lee Wilson and published by . This book was released on 2013 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Public swimming beaches at the Lake of the Ozarks State Park (LOSP) are popular vacationing spots for many Missourians; however, on several occasions Escherichia coli (E. coli) concentrations have exceeded standards set by the Missouri Department of Natural Resources (MDNR). Exceedances lead to beach closures which not only represent a potential public health threat but are also detrimental to the local economy and the public's perception of the lake's general water quality. In a collaborative effort between Missouri S&T, the United States Geological Survey (USGS) and the MDNR, an in-depth, two-summer study was conducted which included collection of over 1,300 water and sediment samples at 36 locations, sediment resuspension, runoff analysis and microbial source tracking (MST) studies. Coupling spatial, temporal and microbial source tracking studies, predominant sources of E. coli contamination at Lake of the Ozarks State Park identified during this study were the fecal contamination from waterfowl harbored in beach sediments and from tributary inflow. Once concentrated in sediments, E. coli are likely suspended into the water column by bathers and slowly decay and potentially advect out of Grand Glaize Beach Cove. Modifications to beach and waterfowl management along with routine lake-wide sampling will likely alleviate E. coli contamination at Grand Glaize Beach and improve public perception of general lake quality"--Abstract, page iv.

Book Escherichia Coli at Ohio Bathing Beaches

Download or read book Escherichia Coli at Ohio Bathing Beaches written by Bernard T. Nolan and published by . This book was released on 2003 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Comparison of Suspended Sediment and E coli in Two East Tennessee Streams

Download or read book A Comparison of Suspended Sediment and E coli in Two East Tennessee Streams written by and published by . This book was released on 2009 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two frequent water quality problems for streams on state 303(d) lists are sedimentation and bacteria. Escherichia coli (E.coli) is monitored as a widely distributed, easily cultured species that can indicate pathogenic bacterial contamination in waters designated for recreational uses. Suspended solids are also an indicator of stream health because they stress aquatic ecosystems. I investigated the relationships between concentrations and loads of suspended solids and E. coli over different flows in two tributary streams of the Little River (HUC 06010201) in east Tennessee. One stream, Nails Creek, flows through a rural, agricultural area, while the second, Pistol Creek, drains a dominantly urban and residential watershed. I hypothesized that relationships between E. coli and suspended solid concentrations would differ between the two streams. From August 2007 through February 2008, I collected 20 water samples and suspended solids from each stream to be analyzed to determine bacterial and suspended sediment concentrations and loads, over a range of flows. I processed the samples for E. coli, total suspended solids (TSS), and loss-on-ignition, and used DNA analyses of Bacteroides to determine the percentage of bovine or human bacteria per sample. To determine relationships between the variables, I used non-parametric correlation analyses for in-stream relationships and Mann-Whitney-U tests for relationships between streams. No relationship was found between concentrations or loads of suspended solids and E.coli in either Nails Creek, or Pistol Creek. However, Nails Creek had significantly higher median concentrations of E.coli and TSS than Pistol Creek. Patterns of discharge, suspended solids, and E.coli concentrations and loads differed between the two streams, with Nails Creek samples having higher loads of TSS and E. coli. Pistol Creek had significantly higher TSS loads and E.coli loads at higher discharges than at lower discharges while there was no significant difference with discharge in Nails Creek. Nails Creek samples contained more bovine-associated fecal bacteria than human-associated fecal bacteria; Pistol Creek contained very little fecal bacteria. This study takes a step toward understanding relationships among suspended solids, bacteria, and discharge in Little River tributaries and provides a foundation for future investigations and water quality remediation efforts in the watershed.

Book Methods of Soil Analysis Part 4

Download or read book Methods of Soil Analysis Part 4 written by Jacob H. Dane and published by John Wiley & Sons. This book was released on 2020-05-27 with total page 1744 pages. Available in PDF, EPUB and Kindle. Book excerpt: The best single reference for both the theory and practice of soil physical measurements, Methods, Part 4 adopts a more hierarchical approach to allow readers to easily find their specific topic or measurement of interest. As such it is divided into eight main chapters on soil sampling and statistics, the solid, solution, and gas phases, soil heat, solute transport, multi-fluid flow, and erosion. More than 100 world experts contribute detailed sections.

Book Encyclopedia of Agrophysics

Download or read book Encyclopedia of Agrophysics written by Jan Gliński and published by Springer Science & Business Media. This book was released on 2011-06-07 with total page 1075 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Encyclopedia of Agrophysics will provide up-to-date information on the physical properties and processes affecting the quality of the environment and plant production. It will be a "first-up" volume which will nicely complement the recently published Encyclopedia of Soil Science, (November 2007) which was published in the same series. In a single authoritative volume a collection of about 250 informative articles and ca 400 glossary terms covering all aspects of agrophysics will be presented. The authors will be renowned specialists in various aspects in agrophysics from a wide variety of countries. Agrophysics is important both for research and practical use not only in agriculture, but also in areas like environmental science, land reclamation, food processing etc. Agrophysics is a relatively new interdisciplinary field closely related to Agrochemistry, Agrobiology, Agroclimatology and Agroecology. Nowadays it has been fully accepted as an agricultural and environmental discipline. As such this Encyclopedia volume will be an indispensable working tool for scientists and practitioners from different disciplines, like agriculture, soil science, geosciences, environmental science, geography, and engineering.

Book Scientific Investigations Report

Download or read book Scientific Investigations Report written by Sharon E. Kroening and published by . This book was released on 2004 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Advances in Agronomy

Download or read book Advances in Agronomy written by and published by Academic Press. This book was released on 2004-04-16 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Agronomy continues to be recognized as a leading reference and a first-rate source of the latest research in agronomy. Major reviews deal with the current topics of interest to agronomists, as well as crop and soil scientists. As always, the subjects covered are varied and exemplary of the myriad subject matter dealt with by this long-running serial. Editor Donald Sparks, former president of the Soil Science Society of America and current president of the International Union of Soil Science, is the S. Hallock du Pont Chair of Plant and Soil Sciences at The University of Delaware. Volume 82 contains eight state-of-the-art reviews on topics of interest in the plant and soil sciences. Three of the reviews present cutting-edge molecular scale techniques and approaches that directly impact food production, crop improvement, and environmental quality and sustainability.

Book Distribution and Variability of Fecal indicator Bacteria in Scioto and Olentangy Rivers in the Columbus Ohio Area

Download or read book Distribution and Variability of Fecal indicator Bacteria in Scioto and Olentangy Rivers in the Columbus Ohio Area written by Donna N. Myers and published by . This book was released on 1993 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Water Quality E Coli and Its Significance

Download or read book Water Quality E Coli and Its Significance written by and published by . This book was released on 1974 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: