A Watershed Analysis of Seasonal Concentration- and Loading-based Results for Escherichia coli in Inland Waters

被引：0
作者：
Megan A. Stallard
Ryan R. Otter
Steve Winesett
Michelle Barbero
Mary Bruce
Alice Layton
Frank C. Bailey
机构：
[1] Middle Tennessee State University,Department of Biology
[2] Stormwater Division/NPDES Office,Metro Water Services
[3] University of Tennessee,Center for Environmental Biotechnology
[4] Gobbell Hays Partners,undefined
来源：
Bulletin of Environmental Contamination and Toxicology | 2016年 / 97卷
关键词：
Fecal indicator bacteria; Inland waters; Baseflow;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Fecal indicator bacteria, such as Escherichia coli, are frequently monitored in recreational waterbodies as indicators of potential fecal pathogen presence and exposure. The present watershed analysis investigated the influence of season on E. coli concentration (MPN/100 mL) and loading (MPN/day) measurements for inland waters at baseflow conditions. The master dataset collected during 2007–2012 for three watersheds included 896 E. coli (Colilert) samples with simultaneous flow taken for a subset (39 %) of samples. The outcomes for grouped watersheds were reflected in most cases for individual watersheds. Concentration- and loading-based results were highest in summer and spring, and lowest in the winter and fall, respectively. The comparison of these two measurement techniques (concentration and loading) highlight the impact of flow data during baseflow conditions for inland waters and reveal that caution should be used when inferring one method’s results from another.
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页码：838 / 842
页数：4
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