Waterborne virus transport and the associated risks in a large lake

Li, Chaojie; Sylvestre, Émile; Fernández-Cassi, Xavier; Julian, Timothy R.; Kohn, Tamar

doi:10.1016/j.watres.2022.119437

Cited by 9 publications

(12 citation statements)

References 62 publications

(77 reference statements)

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“…This also stems from the difference in the dose‐response curves, as discussed in Li et al. (2023): for rotavirus, the second order derivative of the dose‐response curve is close to 0, thus the risk will change linearly with the concentration. However, for norovirus, at a genome copy number of around 200 (nearshore concentration in February (13 GC/ml) × ingestion volume (16 ml)), the second order derivative of the dose‐response curve is well below 0, thus the dose‐response curve serves as a buffer to the change of virus concentrations and weaken the effect of any increase or decrease in nearshore virus concentration values on the resulting infection risks.…”

Section: Discussionmentioning

confidence: 99%

“…The concentration of the enteric viruses released at the storm outlet was based on measurements in the influent of the Lausanne wastewater treatment plant (WWTP) reported in Li et al. (2023). Once the virus concentration at the Morges beach was computed using the hydrodynamic–water quality model, the result was used as an input for the QMRA process and the final risks posed to recreational water users (swimmers) were evaluated (Fewtrell, 2013).…”

Section: Methodsmentioning

confidence: 99%

“…Virus concentrations were taken from Li et al. (2023). Virus inactivation data were obtained from the earlier publication of Boehm et al.…”

Section: Datamentioning

confidence: 99%

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Waterborne Virus Transport and Risk Assessment in Lake Geneva Under Climate Change

Li,

Kohn

2024

Earth's Future

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Climate changes influence lake hydrodynamics and radiation levels and thus may affect the fate and transport of waterborne pathogens in lakes. This study examines the impact of climate change on the fate, transport, and associated risks of four waterborne viruses in Lake Geneva. We used a coupled water quality‐microbial risk assessment model to estimate virus concentrations and associated risks to recreational water users for each month in 2019 and 2060. Long‐term hydrodynamic simulations suggested that although the annual hydrodynamic transport pattern of Lake Geneva will remain relatively stable, a 1.9°C increase of lake surface water temperature can be expected, while a slight decrease in lake current velocity may occur. The subsequent effect on the fate and transport of the four enteric viruses was found to vary by time of year. During warmer periods, the increase of virus inactivation due to higher water temperature and stronger solar radiation at the earth's surface will compensate for the additional virus discharge brought about by population growth over the time period considered, whereas during winter the virus concentration near the lake shore and the associated infection probabilities risks are likely to increase due to population growth. Additionally, the current estimation of virus inactivation rate shows significant variability, which has a more substantial effect on enteric virus concentrations in the lake compared with changing climate parameters. Overall, the study suggests that future risks posed by enteric viruses with recreational water users near popular beaches around Lake Geneva will likely remain similar to current risks and accurate estimation of the environmental inactivation of viruses is crucial for predicting the fate of enteric viruses in the aquatic system.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Waterborne Virus Transport and Risk Assessment in Lake Geneva Under Climate Change

Li,

Kohn

2024

Earth's Future

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“…Incorporating the effects of particle content, incubation temperature, and their interactions could enhance virus fate and transport models. For example, Li et al 50 found that incorporating the effects of environmental stressors on rotavirus and enterovirus persistence in a lake reduced the estimated risk of infection while swimming by 1000 times. In addition to infectious virus persistence, HuNoV genome segment persistence is useful when data for infectious viruses are not available as well as for environmental surveillance efforts.…”

Section: Discussionmentioning

confidence: 99%

Temperature and particles interact to affect human norovirus and MS2 persistence in surface water

Kennedy,

Lowry,

Boehm

2024

Environ. Sci.: Processes Impacts

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“…Viral monitoring in freshwater is challenging because of the low concentrations of viruses distributed heterogeneously in large bodies of water [8, 19,31]. While these low concentrations are di cult to monitor, they are signi cant enough to cause human disease [32,33].…”

Section: Introductionmentioning

confidence: 99%

Enhanced detection of viruses for improved water safety

Hayes

Gouthro

Fuller

et al. 2023

Preprint

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Human viruses pose a significant health risk in freshwater environments, but current monitoring methods are inadequate for detecting viral presence efficiently. We evaluated a novel passive in-situ concentration method using granular activated carbon (GAC). This study detected and quantified eight enteric and non-enteric pathogenic viruses in a freshwater recreational lake in paired grab and GAC passive samples. Results found that GAC passive sampling had a higher detection rate for all viruses compared to grab samples, with adenovirus found to be the most prevalent virus, followed by respiratory syncytial virus, norovirus, enterovirus, Influenza A, SARS-CoV-2, and rotavirus. GAC in-situ concentration allowed for the capture and recovery of viral gene copy targets that ranged from one to three orders of magnitude higher than conventional ex-situ concentration methods used in viral monitoring. This simple and affordable sampling method may have far-reaching implications for reducing barriers associated with viral monitoring across various environmental contexts.

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Waterborne virus transport and the associated risks in a large lake

Cited by 9 publications

References 62 publications

Waterborne Virus Transport and Risk Assessment in Lake Geneva Under Climate Change

Waterborne Virus Transport and Risk Assessment in Lake Geneva Under Climate Change

Temperature and particles interact to affect human norovirus and MS2 persistence in surface water

Enhanced detection of viruses for improved water safety

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