Survival and leaching of fecal bacteria after slurry spreading on mountain hay meadows: consequences for the management of water contamination risk

Trevisan, Dominique; Vansteelant, Jean-Yves; Dorioz, Jean Marcel

doi:10.1016/s0043-1354(01)00184-1

Cited by 33 publications

(34 citation statements)

References 12 publications

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“…1). For instance, the observed decline in E. coli in response to rising soil temperatures (Table 4, Figs 2c and 4) is consistent with the increased predatory and grazing activity of protozoa on the soil bacterial biomass observed in warm compared with cooler soil conditions (Van Donsel et al 1967;Acea et al 1988;Barker et al 1999;Trevisan et al 2002). Escherichia coli numbers may also be determined by the presence of antagonistic, lytic or antibiotic-producing flora, which release toxic substances that control the size of the soil bacterial biomass (Grossard 1952;Acea et al 1988).…”

Section: Ae73 <0ae001supporting

confidence: 74%

Field investigations on the survival of Escherichia coli and presence of other enteric micro-organisms in biosolids-amended agricultural soil

Lang

Bellett-Travers

Smith

2007

Journal of Applied Microbiology

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Aims: To measure the survival of enteric micro‐organisms in agricultural soil amended with conventional and enhanced treated biosolids in relation to environmental and edaphic conditions. Methods and Results: Escherichia coli, Salmonella and F‐specific RNA bacteriophage were enumerated in sludge and amended soil. Salmonella was not detected and only small numbers of bacteriophages were found in conventional, dewatered mesophilic anaerobically digested biosolids (DMAD). Neither organism was detected in soil. Escherichia coli numbers in soil increased with DMAD application compared with the unamended control, or soil receiving enhanced treated, thermally dried digested (TDD) and composted (CPT) biosolids. Empirical statistical models were developed summarizing the relationship between soil temperature, moisture content and time and E. coli populations. Background numbers of E. coli declined with increasing soil temperature and decreasing soil moisture responding to seasonal patterns in environmental conditions. Time following application was the only significant explanatory variable of E. coli numbers and decay in DMAD‐amended soil. Conclusions: E. coli are an indigenous component of the microbial community in field soil and populations increased in cool, moist soil during autumn‐winter and declined in warm, dryer soil during spring‐summer. Enhanced treated biosolids were not a source of E. coli, but reduced the size of the indigenous population possibly by stimulating the activity of predatory and competing soil flora because of the organic substrate input from sludge. Conventionally treated biosolids increased E. coli numbers in soil. However, introduced bacteria declined rapidly and survival was limited to 3 months, irrespective of the timing of sludge application or environment. Significance and Impact of the Study: The results provide assurance that residual numbers of pathogens applied to soil in treated biosolids decay to background values well within cropping and harvesting restrictions imposed when sewage sludge is spread on farmland.

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Section: Ae73 <0ae001supporting

confidence: 74%

Field investigations on the survival of Escherichia coli and presence of other enteric micro-organisms in biosolids-amended agricultural soil

Lang

Bellett-Travers

Smith

2007

Journal of Applied Microbiology

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“…For example, in experiments with surface-applied manures, sam-ples were taken from the surface to depths of 1 cm (13), 2.6 cm (22), 3 cm (23), 4 cm (24), 5 cm (10, 25-27), 7.5 cm (28), 10 cm (11, 29-31), 15 cm (32,33), and 20 cm (34)(35)(36). In only one study (37) were concentrations of E. coli reported for several depth ranges: 0 to 2.5 cm, 2.5 to 5 cm, and 5 to 25 cm.…”

mentioning

confidence: 99%

Depth-Dependent Survival of Escherichia coli and Enterococci in Soil after Manure Application and Simulated Rainfall

Stocker

Pachepsky

Hill

et al. 2015

Appl Environ Microbiol

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bOnce released, manure-borne bacteria can enter runoff via interaction with the thin mixing layer near the soil surface. The objectives of this work were to document temporal changes in profile distributions of manure-borne Escherichia coli and enterococci in the nearsurface soil layers after simulated rainfalls and to examine differences in survival of the two fecal indicator bacteria. Rainfall simulations were performed in triplicate on soil-filled boxes with grass cover and solid manure application for 1 h with rainfall depths of 30, 60, and 90 mm. Soil samples were collected weekly from depth ranges of 0 to 1, 1 to 2, 2 to 5, and 5 to 10 cm for 1 month. Rainfall intensity was found to have a significant impact on the initial concentrations of fecal indicator bacteria in the soil. While total numbers of enterococci rapidly declined over time, E. coli populations experienced initial growth with concentration increases of 4, 10, and 25 times the initial levels at rainfall treatment depths of 30, 60, and 90 mm, respectively. E. coli populations grew to the approximately the same level in all treatments. The 0-to 1-cm layer contained more indicator bacteria than the layers beneath it, and survival of indicator bacteria was better in this layer, with decimation times between 12 and 18 days after the first week of growth. The proportion of bacteria in the 0-to 1-cm layer grew with time as the total number of bacteria in the 0-to 10-cm layer declined. The results of this work indicate the need to revisit the bacterial survival patterns that are assumed in water quality models. Fecal contamination of soil and water presents a major worldwide health risk. When pathogenic microorganisms enter soil or water, they can infect humans via drinking or recreational activities and through consumption or handling of contaminated produce. The Centers for Disease Control and Prevention (1) estimated in 2011 that each year nearly 1 in 6 Americans (or 46 million people) get sick and roughly 3,000 die from foodborne diseases. Another study performed in the same year estimated that foodborne pathogens resulted in medical care costs in the range from $4.4 billion to $33.0 billion (2). Contamination of soil and water leading to foodborne illness can originate from numerous sources, such as direct deposition by animals, overflow or leakage of faulty septic and sewage systems, or manure application to agricultural fields and pastures (3-5). The potential presence of pathogens that cause foodborne illness can be inferred via the monitoring of fecal indicator bacteria (FIB), such as Escherichia coli and enterococci (6).It has been found that both E. coli and enterococci can survive in the soil for several weeks after deposition, if not longer (7,8). Some studies have found that populations of these organisms can experience initial growth in the soil that can extend their prevalence for longer than previously thought. For example, Lau and Ingham (9) reported that E. coli and enterococci survived in soil following manure incorporation for mo...

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“…Moreover, ruminant production sites are often surrounded by land used for crops which often use manure as a fertilizer. Following the spreading of manure, a large amount of fecal microorganisms can be found on soil and their survival depends on the species and the external conditions (Trevisan et al 2002). Once on the soil and following raining events, microorganisms coming from these sources can be transported to water bodies by runoff and subsurface tile drains.…”

Section: Discussionmentioning

confidence: 99%

Fecal Contamination of Recreational Freshwaters: the Effect of Time-Independent Agroenvironmental Factors

Turgeon

Michel

Levallois

et al. 2011

Water Qual Expo Health

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Fecal contamination of recreational waters is a complex public health and environmental issue involving multiple possible sources and contributing factors. Agricultural and animal production activities represent one such source of contamination from which various microorganisms transmissible to humans can be found. This study used regression models to ascertain and describe various time-independent agroenvironmental determinants associated with fecal contamination of recreational lake waters. From a logistic regression model analysis, two determinants were statistically associated with the level of fecal coliforms, namely: the presence of ruminant production in the area of influence (OR = 2.78) and urban area (OR = 3.69). Moreover, our data suggest that sources of fecal contamination located within the area of the lake water catchment and from within a distance of two kilometers of the beach have the most influence on the water quality.

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Survival and leaching of fecal bacteria after slurry spreading on mountain hay meadows: consequences for the management of water contamination risk

Cited by 33 publications

References 12 publications

Field investigations on the survival of Escherichia coli and presence of other enteric micro-organisms in biosolids-amended agricultural soil

Field investigations on the survival of Escherichia coli and presence of other enteric micro-organisms in biosolids-amended agricultural soil

Depth-Dependent Survival of Escherichia coli and Enterococci in Soil after Manure Application and Simulated Rainfall

Fecal Contamination of Recreational Freshwaters: the Effect of Time-Independent Agroenvironmental Factors

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