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Presumptive Sources of Fecal Contamination in Four Tributaries to the New River Gorge National River, West Virginia, 2004: Open-File Report 2007-1107 by Melvin V. Mathes, United U. S. Department of the Interior, Et Al - Paperback
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معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781288744909
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354523180
    المؤلفين
    الكاتب
    Melvin V. Mathes, United U. S. Department of the Interior, Et Al
    المؤلفين
    الناشر
    Bibliogov
    رقم ال ISBN
    9781288744909
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354523180
    المؤلفين
    الكاتب
    Melvin V. Mathes, United U. S. Department of the Interior, Et Al
    المؤلفين
    الناشر
    Bibliogov
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
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    الوصف:

    Several methods were used to determine the sources of fecal contamination in water samples collected during September and October 2004 from four tributaries to the New River Gorge National River -- Arbuckle Creek, Dunloup Creek, Keeney Creek, and Wolf Creek. All four tributaries historically have

    Several methods were used to determine the sources of fecal contamination in water samples collected during September and October 2004 from four tributaries to the New River Gorge National River -- Arbuckle Creek, Dunloup Creek, Keeney Creek, and Wolf Creek. All four tributaries historically have had elevated levels of fecal coliform bacteria. The source-tracking methods used yielded various results, possibly because one or more methods failed. Sourcing methods used in this study included the detection of several human-specific and animal-specific biological or molecular markers, and library-dependent pulsed-field gel electrophoresis analysis that attempted to associate Escherichia coli bacteria obtained from water samples with animal sources by matching DNA-fragment banding patterns. Evaluation of the results of quality-control analysis indicated that pulsed-field gel electrophoresis analysis was unable to identify known-source bacteria isolates. Increasing the size of the known-source library did not improve the results for quality-control samples. A number of emerging methods, using markers in Enterococcus, human urine, Bacteroidetes, and host mitochondrial DNA, demonstrated some potential in associating fecal contamination with human or animal sources in a limited analysis of quality-control samples. All four of the human-specific markers were detected in water samples from Keeney Creek, a watershed with no centralized municipal wastewater-treatment facilities, thus indicating human sources of fecal contamination. The human-specific Bacteroidetes and host mitochondrial DNA markers were detected in water samples from Dunloup Creek, Wolf Creek, and to a lesser degree Arbuckle Creek. Results of analysis for wastewater compounds indicate that the September 27 sample from Arbuckle Creek contained numerous human tracer compounds likely from sewage. Dog, horse, chicken, and pig host mitochondrial DNA were detected in some of the water samples with the exception of the.

    خصائص المنتج:
    • الفئات: سياسة
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: Melvin V. Mathes, United U. S. Department of the Interior, Et Al
    • الناشر: Bibliogov
    • رقم ال ISBN: 9781288744909
    • عدد الصفحات: 36
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.07 inches
 

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