Evaluation of the quality of coastal bathing waters in Spain through fecal bacteria Escherichia coli and Enterococcus

Aragonés, Luís; López, Isabel; Palazón, Antonio; López‐Úbeda, Rebeca; García, Celia

doi:10.1016/j.scitotenv.2016.05.106

Cited by 59 publications

(29 citation statements)

References 25 publications

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“…Similarly, Ibekwe et al (2011) also found in the Santa Ana River in southern California that storm water runoff from surrounding urban and agricultural areas is a dominant source of faecal contamination. The observed higher FIB concentrations during wet weather and intense precipitation are also consistent with findings by others (Schilling et al 2009;Walters et al 2011;Abia et al 2015;Dastager 2015;Aragonés et al 2016).…”

Section: Discussionsupporting

confidence: 92%

“…This is consistent with results from previous studies (Adingra et al 2012;Hoppe et al 2013;Dastager 2015;Aragonés et al 2016). Water salinity depends on the amount of precipitation and associated fresh water inflow from the upstream watersheds (Hoppe et al 2013).…”

Section: Discussionsupporting

confidence: 92%

“…Noble et al (2003) in their study in southern California also reported that enterococci exceeded the single sample standards most often due to enterococci's longer survival in the marine environment compared to faecal coliform. Significantly higher FIB concentrations were found during wet weather compared to dry weather, which is in agreement with other studies (Walters et al 2011;Abia et al 2015;Aragonés et al 2016). Precipitation was positively correlated with FIB, because surface water is likely contaminated with manure through increased runoff from agricultural lands and urban areas (e.g., Satkhira town), leakage from manure storage areas and septic tanks leakage, and resuspension from sediments.…”

Section: Discussionsupporting

confidence: 91%

“…Higher bacterial concentrations were reported during periods of intense precipitation and high river discharge (Schilling et al 2009;Ibekwe et al 2011;Aragonés et al 2016). Conversely, increased precipitation may decrease the pathogen concentration of surface water due to dilution (Lucas et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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The Impact of Environmental Variables on Faecal Indicator Bacteria in the Betna River Basin, Bangladesh

2017

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Environmental variables influence Faecal Indicator Bacteria (FIB) in surface water. Understanding that influence is important, because presence of FIB, which are an indication of faecal contamination, means that harmful pathogens could be present that could also be influenced by environmental variables. Although some recent studies have focused on this topic, most of this work has been conducted in developed countries. Similar studies in developing countries and in a (sub)tropical climate are lacking. In this study we assess the influence of environmental variables on fluctuations in FIB concentrations of the Betna River in southwest Bangladesh that floods almost every year. Monthly water samples from five locations along Betna River were tested for FIB (E. coli and enterococci) in 2014-2015. A linear regression model was developed to assess the effect of the environmental variables on FIB concentrations. The study revealed increased FIB concentrations during wet weather conditions. Precipitation and water temperature were positively correlated with FIB concentrations. Water temperature was positively correlated, because the warm May to September period coincides with frequent precipitation. Precipitation increases manure release from land to surface water. The regression model explains nearly half of the variability in FIB concentrations (R 2 of 0.46 for E. coli and 0.48 for enterococci). This study indicates that increased precipitation combined with higher water temperature, as is expected in this region with climate change, likely increases FIB concentrations. Waterborne pathogens are expected to respond similarly to these environmental changes, indicating that disease outbreaks could well become more frequent and severe.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Impact of Environmental Variables on Faecal Indicator Bacteria in the Betna River Basin, Bangladesh

2017

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show abstract

“…In a few studies FIB growth was suspected to be a possible reason for the positive relationship between temperature and FIB (Byappanahalli et al, 2003, Tiefenthaler et al, 2009, Hong et al, 2010, Abia et al, 2015. Salinity was negatively correlated with pathogen concentrations (Hoppe et al, 2013, Dastager, 2015, Aragonés et al, 2016, Adingra et al, 2012.…”

Section: A) This Thesis Fills This Important Knowledge Gapmentioning

confidence: 99%

Assessing the impact of socio-economic development and climate change on faecal indicator bacteria in the Betna River, Bangladesh

Islam¹

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Marine Solid Pollution—From Macroplastics to Nanoplastics

Rossi¹

2022

SDG 14: Life Below Water

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Evaluation of the quality of coastal bathing waters in Spain through fecal bacteria Escherichia coli and Enterococcus

Cited by 59 publications

References 25 publications

The Impact of Environmental Variables on Faecal Indicator Bacteria in the Betna River Basin, Bangladesh

The Impact of Environmental Variables on Faecal Indicator Bacteria in the Betna River Basin, Bangladesh

Assessing the impact of socio-economic development and climate change on faecal indicator bacteria in the Betna River, Bangladesh

Marine Solid Pollution—From Macroplastics to Nanoplastics

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