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713274.pdf (2.77 MB)

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2021-09-15

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cc-by-nc-nd (c) Rusiñol Arantegui, Marta et al., 2021
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/185652

Monitoring waves of the COVID-19 pandemic: Inferences from WWTPs of different sizes.

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https://doi.org/10.1016/j.scitotenv.2021.147463

Resum

Wastewater based epidemiology was employed to track the spread of SARS-CoV-2 within the sewershed areas of 10 wastewater treatment plants (WWTPs) in Catalonia, Spain. A total of 185 WWTPs inflow samples were collected over the period consisting of both the first wave (mid-March to June) and the second wave (July to November). Concentrations of SARS-CoV-2 RNA (N1 and N2 assays) were quantified in these wastewaters as well as those of Human adenoviruses (HAdV) and JC polyomavirus (JCPyV), as indicators of human faecal contamination. SARS-CoV-2 N gene daily loads strongly correlated with the number of cases diagnosed one week after sampling i.e. wastewater levels were a good predictor of cases to be diagnosed in the immediate future. The conditions present at small WWTPs relative to larger WWTPs influence the ability to follow the pandemic. Small WWTPs (<24,000 inhabitants) had lower median loads of SARS-CoV-2 despite similar incidence of infection within the municipalities served by the different WWTP (but not lower loads of HAdV and JCPyV). The lowest incidence resulting in quantifiable SARS-CoV-2 concentration in wastewater differed between WWTP sizes, being 0.11 and 0.82 cases/1000 inhabitants for the large and small sized WWTP respectively. © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).

Matèries

SARS-CoV-2, Plantes de tractament d'aigües residuals

Matèries (anglès)

SARS-CoV-2, Sewage disposal plant

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Articles publicats en revistes (Genètica, Microbiologia i Estadística)

Citació

RUSIÑOL ARANTEGUI, Marta, et al. Monitoring waves of the COVID-19 pandemic: Inferences from WWTPs of different sizes. Science of the Total Environment. 2021. Vol. 787, num. 147463. ISSN 0048-9697. [consulted: 4 of August of 2026]. Available at: https://hdl.handle.net/2445/185652

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