Roadside ditches as conduits of fecal indicator organisms and sediment: Implications for water quality management

Falbo, K.; Schneider, Rebecca L.; Buckley, Daniel H.; Walter, M. Todd; Bergholz, Peter W.; Buchanan, Brian

doi:10.1016/j.jenvman.2013.05.021

Cited by 30 publications

(28 citation statements)

References 44 publications

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“…For example, Strawn et al (15) and Sauders et al (71) found that the closer a field or location was to a road, the greater the likelihood of L. monocytogenes isolation. Roadside ditches, like surface water, may act as a reservoir and transmission pathway for foodborne pathogens in produce production environments (72). Heavy rain, melting snow, wind, flooding, and human activity may also act as mechanisms for the spread of foodborne pathogens from ditches and waterways to produce fields.…”

Section: Discussionmentioning

confidence: 99%

“…If a rain or irrigation event did not occur between 144 and 192 h after a rain event, "dry"-event sampling was performed. Sampling at a later time point (e.g., 192 h versus 144 h) was given preference, if forecasts clearly indicated an absence of rainfall for Ͼ144 h. Each set of samples (i.e., 24,48,72, and 144 to 192 h, if collected) was defined as representing either an irrigation or a rain event depending on which "event type" initiated sample collection. Overall, seven sets of samples were collected: (i) five sets that represented rain events, including three sets where samples were collected 144 to 192 h after the event, and (ii) two sets that represented irrigation events, including one set where samples were collected 144 to 192 h after the event.…”

Section: Methodsmentioning

confidence: 99%

“…All statistical analyses were performed in R (version 3.1; R Core Team, Vienna, Austria). Prevalence was calculated for each field (high or low risk), time period (24,48,72, and 144 to 192 h), event type (rain versus irrigation event), and sample type (leaf, soil, and water). The total number of ATs (i.e., allele type richness) for Listeria spp.…”

Section: Methodsmentioning

confidence: 99%

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Spatial and Temporal Factors Associated with an Increased Prevalence of Listeria monocytogenes in Spinach Fields in New York State

Weller

Wiedmann

Strawn

2015

Appl Environ Microbiol

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While rain and irrigation events have been associated with an increased prevalence of foodborne pathogens in produce production environments, quantitative data are needed to determine the effects of various spatial and temporal factors on the risk of produce contamination following these events. This study was performed to quantify these effects and to determine the impact of rain and irrigation events on the detection frequency and diversity of Listeria species (including L. monocytogenes) and L. monocytogenes in produce fields. Two spinach fields, with high and low predicted risks of L. monocytogenes isolation, were sampled 24, 48, 72, and 144 to 192 h following irrigation and rain events. Predicted risk was a function of the field's proximity to water and roads. Factors were evaluated for their association with Listeria species and L. monocytogenes isolation by using generalized linear mixed models (GLMMs). In total, 1,492 (1,092 soil, 334 leaf, 14 fecal, and 52 water) samples were collected. According to the GLMM, the likelihood of Listeria species and L. monocytogenes isolation from soil samples was highest during the 24 h immediately following an event (odds ratios [ORs] of 7.7 and 25, respectively). Additionally, Listeria species and L. monocytogenes isolates associated with irrigation events showed significantly lower sigB allele type diversity than did isolates associated with precipitation events (P ‫؍‬ <0.001), suggesting that irrigation water may be a point source of L. monocytogenes contamination. Small changes in management practices (e.g., not irrigating fields before harvest) may therefore reduce the risk of L. monocytogenes contamination of fresh produce. Foodborne outbreaks have been increasingly linked to fresh produce in the United States (1-6). In fact, the proportion of foodborne outbreaks that were attributed to produce between 1998 and 2008, 46%, was over twice that attributed to meat, 22% (6). Similarly, between 2002 and 2011, produce-associated outbreaks caused, on average, more illnesses per outbreak than any other food (1). As a result, the safety of fresh produce has come into question, negatively affecting produce growers, the food industry, and local economies (7,8). For example, as a consequence of a 2011 listeriosis outbreak linked to fresh cantaloupes in the United States (9), cantaloupe consumption dropped nationwide by 53% (10). The instability of the cantaloupe market following the 2011 outbreak is indicative of a larger trend of wide-scale consumer avoidance of products associated with outbreaks, even when the outbreak is associated with point source events (7,8). Thus, prevention of produce-associated outbreaks is a key concern of the produce industry. Although most listeriosis outbreaks associated with fresh produce are traced back to processing environments, the prevention of produce contamination in production environments is crucial. In fact, previous studies have shown that low-level sporadic contamination of produce in production environments can result in pathogen pr...

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Spatial and Temporal Factors Associated with an Increased Prevalence of Listeria monocytogenes in Spinach Fields in New York State

Weller

Wiedmann

Strawn

2015

Appl Environ Microbiol

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“…highly encouraged among the rural populace to safeguard their health against waterborne diseases. [1]. Water is an indispensable resource for supporting life systems [2][3][4], while access to safe drinking water is a basic human right, which is essential for healthy life [5][6][7].…”

mentioning

confidence: 99%

Assessment of the Efficiency of Disinfection Methods for Improving Water Quality

Sojobi¹,

Danhunsi²,

Afolayan³

2015

Nig. J. Tech.

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ABSTRACT ABSTRACTThe The The The efficiencies of three disinfection methods namely boiling, water guard and pur purifier were assessed. The efficiencies of three disinfection methods namely boiling, water guard and pur purifier were assessed. The efficiencies of three disinfection methods namely boiling, water guard and pur purifier were assessed. The efficiencies of three disinfection methods namely boiling, water guard and pur purifier were assessed.

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“…Roadside ditches are important features of the drainage network in the United States. They are mostly designed to rapidly convey storm runoff downstream, reducing the risk of potential road closure as a result of flooding and water logging [1][2][3]. On average, about 20% of storm runoff is captured by roadside ditches in a watershed [4].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Nutrient and Metal Leaching in Roadside Ditches Maintained with Cool and Warm Season Grasses

Boger

Ahiablame

2019

Hydrology

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Roadside ditches play an important role in the quantity and quality of receiving waters. Very little, however, is known about the fate and transport of nutrients and trace metals in roadside ditches, especially their leaching to shallow groundwater. This study sought to document selected water quality constituent levels in infiltrated water (i.e., leachate) in roadside ditches maintained with permanent vegetation. Leachate sampling wells were installed in four roadside ditches, and water samples were collected from the wells following major rainfall events during the years 2016 and 2017. The samples were analyzed for nutrient and metal concentrations. Results indicated that nutrient concentrations in the water samples range from 0.00600 to 0.0107 mg/L for orthophosphate (PO 4 -P), 0.00500 to 6.80 mg/L for nitrate (NO 3 -N), 0 to 0.007 mg/L for nitrite (NO 2 -N), and 0.0100 to 314 mg/L for chloride (Cl − ). Concentrations of the metals examined varied between 0.0100 and 104 mg/L in water samples. While there was no specific pattern in both nutrient and metal concentrations when roadside ditches maintained with cool season grass were compared to those of warm season grass ditches, results suggest that grass types will likely affect differently uptake of nutrients and metals in the ditches.

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Roadside ditches as conduits of fecal indicator organisms and sediment: Implications for water quality management

Cited by 30 publications

References 44 publications

Spatial and Temporal Factors Associated with an Increased Prevalence of Listeria monocytogenes in Spinach Fields in New York State

Spatial and Temporal Factors Associated with an Increased Prevalence of Listeria monocytogenes in Spinach Fields in New York State

Assessment of the Efficiency of Disinfection Methods for Improving Water Quality

Characterization of Nutrient and Metal Leaching in Roadside Ditches Maintained with Cool and Warm Season Grasses

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