Examining the Colonization and Survival of E. coli from Varying Host Sources in Drainage Basin Sediments and Stormwater

Curtis, Kyle; Trapp, J. M.

doi:10.1007/s00244-016-0289-1

Cited by 3 publications

(6 citation statements)

References 33 publications

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“…In these studies, decay of E. coli and enterococci from cattle, bovine, deer, goose, and ovine feces was considerably slower than that of organisms originating from sewage (27,175) or human feces (36,176). In contrast, FIB from dog (9) and seagull (121,129) feces decayed more rapidly than those from sewage and human feces. FIB isolated from environmental water, soil, and sediments typically decayed more slowly than FIB from sewage (9) or organisms originating from dog, bovine, deer, or goose feces (9,87).…”

Section: Intrinsic Factorsmentioning

confidence: 92%

“…In a rare consensus, all the studies comparing decay in sediments versus the overlying water column found extended persistence in sediments. This finding applied to culturable FIB (fecal coliforms, E. coli, and enterococci) (9,45,69,85,88,104,(119)(120)(121)(122), FIB quantified by qPCR (Entero1a and uidA) (69,104), a variety of MST markers (BacCan, BacCow, BacHum, and LA35) (69,104), and bacterial pathogens quantified by both culture and qPCR (Campylobacter coli, E. coli O157:H7, Salmonella spp., and Vibrio parahaemolyticus) (69,120,122). The trend was also consistent regardless of the water type (i.e., freshwater or marine water), experimental design (outdoor or indoor), or inoculum source (strains, human and other animal fecal material, or organisms indigenous to aquatic habitats).…”

Section: Alternative Habitatsmentioning

confidence: 99%

“…Other studies focused on elucidating the effects of sediment characteristics on decay, rather than direct comparisons between the two matrices. In general, smaller grain size was frequently associated with elevated nutrient content and extended survival of culturable FIB (E. coli and enterococci) (94,121,123,124), FIB quantified by qPCR (Entero1a) (94), general (GenBac3) as well humanassociated (HF183) MST markers (94), and a variety of bacterial pathogens (Vibrio cholerae, Salmonella enterica serovar Typhimurium, and Shigella dysenteriae) (124).…”

Section: Alternative Habitatsmentioning

confidence: 99%

“…Lastly, whenever possible, we included comparisons with organisms isolated from water column, soil, and sediments (9,87,101). Depending on the study design, decay was assessed in both the water column and sediments (9,87,121,175) or in only one of these matrices (4,27,29,36,101,129,176).…”

Section: Intrinsic Factorsmentioning

confidence: 99%

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Persistence and Decay of Fecal Microbiota in Aquatic Habitats

Korajkic

Wanjugi

Brooks

et al. 2019

Microbiol Mol Biol Rev

112

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SUMMARY Fecal microorganisms can enter water bodies in diverse ways, including runoff, sewage discharge, and direct fecal deposition. Once in water, the microorganisms experience conditions that are very different from intestinal habitats. The transition from host to aquatic environment may lead to rapid inactivation, some degree of persistence, or growth. Microorganisms may remain planktonic, be deposited in sediment, wash up on beaches, or attach to aquatic vegetation. Each of these habitats offers a panoply of different stressors or advantages, including UV light exposure, temperature fluctuations, salinity, nutrient availability, and biotic interactions with the indigenous microbiota (e.g., predation and/or competition). The host sources of fecal microorganisms are likewise numerous, including wildlife, pets, livestock, and humans. Most of these microorganisms are unlikely to affect human health, but certain taxa can cause waterborne disease. Others signal increased probability of pathogen presence, e.g., the fecal indicator bacteria Escherichia coli and enterococci and bacteriophages, or act as fecal source identifiers (microbial source tracking markers). The effects of environmental factors on decay are frequently inconsistent across microbial species, fecal sources, and measurement strategies (e.g., culture versus molecular). Therefore, broad generalizations about the fate of fecal microorganisms in aquatic environments are problematic, compromising efforts to predict microbial decay and health risk from contamination events. This review summarizes the recent literature on decay of fecal microorganisms in aquatic environments, recognizes defensible generalizations, and identifies knowledge gaps that may provide particularly fruitful avenues for obtaining a better understanding of the fates of these organisms in aquatic environments.

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Section: Intrinsic Factorsmentioning

confidence: 92%

Section: Alternative Habitatsmentioning

confidence: 99%

Section: Alternative Habitatsmentioning

confidence: 99%

Section: Intrinsic Factorsmentioning

confidence: 99%

See 2 more Smart Citations

Persistence and Decay of Fecal Microbiota in Aquatic Habitats

Korajkic

Wanjugi

Brooks

et al. 2019

Microbiol Mol Biol Rev

112

View full text Add to dashboard Cite

show abstract

“…Similar to the effect of ambient sunlight, salinity (and the associated ionic content of brackish and marine waters) affected the decay rates of culturable/infectious FIB, alternative indicators, MST markers and pathogens more so than their corresponding nucleic acids [168,169,170,171,172,173,174]. The effect of source of fecal pollution has been studied on FIB and MST markers, and indicators originating from ruminants are more persistent compared to those from other fecal sources (e.g., dog, seagull, and human) [169,175,176,177,178,179], although different human sources (e.g., feces, septage, and sewage) elicit different decay rates [152]; analogous information for alternative indicators and pathogens is still missing. Finally, studies that compared decay of various indicators to pathogens directly under the same experimental conditions are rare and report conflicting results.…”

Section: Susceptibility To Environmental Stressorsmentioning

confidence: 99%

Relationships between Microbial Indicators and Pathogens in Recreational Water Settings

Korajkic

McMinn

Harwood

2018

IJERPH

145

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Fecal pollution of recreational waters can cause scenic blight and pose a threat to public health, resulting in beach advisories and closures. Fecal indicator bacteria (total and fecal coliforms, Escherichia coli, and enterococci), and alternative indicators of fecal pollution (Clostridium perfringens and bacteriophages) are routinely used in the assessment of sanitary quality of recreational waters. However, fecal indicator bacteria (FIB), and alternative indicators are found in the gastrointestinal tract of humans, and many other animals and therefore are considered general indicators of fecal pollution. As such, there is room for improvement in terms of their use for informing risk assessment and remediation strategies. Microbial source tracking (MST) genetic markers are closely associated with animal hosts and are used to identify fecal pollution sources. In this review, we examine 73 papers generated over 40 years that reported the relationship between at least one indicator and one pathogen group or species. Nearly half of the reports did not include statistical analysis, while the remainder were almost equally split between those that observed statistically significant relationships and those that did not. Statistical significance was reported less frequently in marine and brackish waters compared to freshwater, and the number of statistically significant relationships was considerably higher in freshwater (p < 0.0001). Overall, significant relationships were more commonly reported between FIB and pathogenic bacteria or protozoa, compared to pathogenic viruses (p: 0.0022–0.0005), and this was more pronounced in freshwater compared to marine. Statistically significant relationships were typically noted following wet weather events and at sites known to be impacted by recent fecal pollution. Among the studies that reported frequency of detection, FIB were detected most consistently, followed by alternative indicators. MST markers and the three pathogen groups were detected least frequently. This trend was mirrored by reported concentrations for each group of organisms (FIB > alternative indicators > MST markers > pathogens). Thus, while FIB, alternative indicators, and MST markers continue to be suitable indicators of fecal pollution, their relationship with waterborne pathogens, particularly viruses, is tenuous at best and influenced by many different factors such as frequency of detection, variable shedding rates, differential fate and transport characteristics, as well as a broad range of site-specific factors such as the potential for the presence of a complex mixture of multiple sources of fecal contamination and pathogens.

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A Review on the Application of Granular Filter Media and the Utilization of Agro-Industrial Wastes for Stormwater Quality Improvement

2021

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The stormwater management practices have changed from conveyance-oriented to storage-oriented, as part of the Best Management Practices (BMPs). Still, uncontrolled development increases potential pollutants in the stormwater, which conveys into a water body or river. Continuous improvements in the filtration mechanism would complement stormwater management. For the past decades, there is progress in applying granular filter media for stormwater quality improvement. However, the reports were not systematically reviewed. In this paper, the recent five years research that utilizes granular filter media for improving stormwater quality was retrieved and reviewed. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was referred to, where Scopus and Web of Sciences, two primary journal databases, were used. Initially, keywords searching strings have resulted in 467 articles, which were further screened. Four themes have been formed: stormwater management, stormwater characteristics, separation mechanisms, and future perspectives. Next, two sub-themes and two sub-sub-themes were further established. Then, 65 articles were included manually to complement the themes developed to explore the potential agro-industrial wastes as sustainable filter media. Therefore, this review has proven that the relatively inexpensive and renewable resources from the agro-industrial wastes can remove pollutants efficiently from the stormwater. Four main criteria affecting filter media performances are also highlighted, including the grain sizes of the media, media bed configuration, hydraulic loading rate, and the suspended solids concentration. Further study on these variables can be beneficial to explore the impact of utilizing agro-based media in stormwater filtration.

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Examining the Colonization and Survival of E. coli from Varying Host Sources in Drainage Basin Sediments and Stormwater

Cited by 3 publications

References 33 publications

Persistence and Decay of Fecal Microbiota in Aquatic Habitats

Persistence and Decay of Fecal Microbiota in Aquatic Habitats

Relationships between Microbial Indicators and Pathogens in Recreational Water Settings

A Review on the Application of Granular Filter Media and the Utilization of Agro-Industrial Wastes for Stormwater Quality Improvement

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