Microbial pathogens and contaminants of emerging concern in groundwater at an urban subsurface stormwater infiltration site

Lambert, Jane R. de; Walsh, James F.; Scher, Deanna; Firnstahl, Aaron D.; Borchardt, Mark A.

doi:10.1016/j.scitotenv.2021.145738

Cited by 12 publications

(17 citation statements)

References 16 publications

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“…Differences were seen among the time points in the microbial community composition in both control boreholes however the clustering analysis indicates the difference is greater in CS317. There are insufficient samples to draw firm conclusions, however seasonal variation in the microbial community has previously been seen in pristine (Zhou et al 2012) and impacted groundwaters (de Lambert et al 2021), with rainfall (Zhou et al 2012), and connection to surface (Bougon et al 2012) being cited as important factors as they recharge groundwater with nutrients. Although surface connection is unlikely as the head of the water in the aquifer is slightly higher than the bay, pumping or leakage from sewers could introduce nutrients to the groundwater (Heathcote et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Groundwater Microbiology of an Urban Open‐Loop Ground Source Heat Pump with High Methane

et al. 2023

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Article Impact Statement: Open-loop ground source heat pumps influence biogeochemical carbon, nitrogen and sulphur cycles and alter bacterial communitiesThis article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as

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Section: Discussionmentioning

confidence: 99%

Groundwater Microbiology of an Urban Open‐Loop Ground Source Heat Pump with High Methane

et al. 2023

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“…The high levels of chlorine play a major role in eliminating pathogenic microorganisms, especially fecal bacteria, as fecal bacteria are isolated from humans and animals [16]. Fecal bacteria are characterized by having low resistance to chlorine as compared with environmental bacteria in soil and water, which have adapted to hard environmental conditions [17][18][19]. This explains the isolation of nonfecal coliform bacteria in the drinking water supplied to these hospitals.…”

Section: Discussionmentioning

confidence: 99%

Level of Heavy Metals and Pathogenic Bacteria in Tap Water of Rusafa side Hospitals in Baghdad

Zgair¹

2022

djm

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Background: The quality of drinking water supplied to hospitals is directly related to the quality of health services provided to people. Objective: To assess the chemical and microbial standards provided to four public hospitals on Baghdad's eastern side. Patients and Methods: In this study, 100 water samples were collected from water taps supplied to hospitals. Scientific methods were followed to collect samples in clean, sterile bottles. The chemophysical characteristics of the collected water samples were estimated (Hospital Imam Ali, Martyr Al-Sadr Hospital, Ibn Al Balady Maternity & Children's Hospital, Fatmih Alzahraa Maternity Hospital). In addition, the contamination of water with fecal-coliform bacteria was estimated. Results: In this study, 100 water samples were collected from water taps supplied to hospitals. Scientific methods were followed to collect samples in clean, sterile bottles. The chemophysical characteristics of the collected water samples were estimated (Hospital Imam Ali, Martyr Al-Sadr Hospital, Ibn Al Balady Maternity & Children's Hospital, Fatmih Alzahraa Maternity Hospital). In addition, the contamination of water with fecal-coliform bacteria was estimated. Conclusion: It can be concluded from the current study that the quality of water supplied to the hospitals covered by the study was within the standard level of physiochemical specifications. In addition, all samples were free of fecal-coliform bacteria, which indicates that the water supplied to the hospitals is not contaminated with feces.

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“…Some authors focused their research on microbial transport in subsoil caused by infiltration following rainfall [55,66], while others focused on the infiltration of surface runoff [70] or urban stormwater [71]. Finally, polluted sands [62] and polluted seawater [73] were considered as contamination sources for coastal aquifers.…”

Section: Contamination Sourcesmentioning

confidence: 99%

“…Most of the studies focused on the saturated and unsaturated zones of aquifers but two focused on soils [50,56]. Of the studies that investigated porous aquifers, five examined the saturated portion [52,59,63,67,73]; two examined the unsaturated domain [57,60], and four examined both the saturated and unsaturated domain [61,62,65,71].…”

Section: Environmental Domainmentioning

confidence: 99%

Factors Influencing Microbial Contamination of Groundwater: A Systematic Review of Field-Scale Studies

Bagordo,

Brigida,

Grassi

et al. 2024

Microorganisms

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Pathogenic microorganisms released onto the soil from point or diffuse sources represent a public health concern. They can be transported by rainwater that infiltrates into subsoil and reach the groundwater where they can survive for a long time and contaminate drinking water sources. As part of the SCA.Re.S. (Evaluation of Health Risk Related to the Discharge of Wastewater on the Soil) project, we reviewed a selection of field-scale studies that investigated the factors that influenced the fate of microorganisms that were transported from the ground surface to the groundwater. A total of 24 studies published between 2003 and 2022 were included in the review. These studies were selected from the PubMed and Web of Science databases. Microbial contamination of groundwater depends on complex interactions between human activities responsible for the release of contaminants onto the soil, and a range of environmental and biological factors, including the geological, hydraulic, and moisture characteristics of the media traversed by the water, and the characteristics and the viability of the microorganisms, which in turn depend on the environmental conditions and presence of predatory species. Enterococci appeared to be more resistant in the underground environment than thermotolerant coliforms and were suggested as a better indicator for detecting microbial contamination of groundwater.

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Microbial pathogens and contaminants of emerging concern in groundwater at an urban subsurface stormwater infiltration site

Cited by 12 publications

References 16 publications

Groundwater Microbiology of an Urban Open‐Loop Ground Source Heat Pump with High Methane

Groundwater Microbiology of an Urban Open‐Loop Ground Source Heat Pump with High Methane

Level of Heavy Metals and Pathogenic Bacteria in Tap Water of Rusafa side Hospitals in Baghdad

Factors Influencing Microbial Contamination of Groundwater: A Systematic Review of Field-Scale Studies

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