COVID-19 Pandemic Modulates the Environmental Contamination Level with Enteric Bacteria from WWTPs

Alina Roxana Banciu; Luoana Florentina Pascu; Catalina Stoica; Stefania Gheorghe; Irina Lucaciu; Laura Feodorov; Mihai Nita-Lazar

doi:10.20944/preprints202403.0613.v2

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preprints.org > environmental and earth sciences > pollution > doi: 10.20944/preprints202403.0613.v2

Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

COVID-19 Pandemic Modulates the Environmental Contamination Level with Enteric Bacteria from WWTPs

Alina Roxana Banciu

Luoana Florentina Pascu

Version 1 : Received: 9 March 2024 / Approved: 11 March 2024 / Online: 11 March 2024 (12:25:31 CET)
Version 2 : Received: 27 March 2024 / Approved: 27 March 2024 / Online: 27 March 2024 (13:02:42 CET)

A peer-reviewed article of this Preprint also exists.

Banciu, A.R.; Pascu, L.F.; Stoica, C.; Gheorghe, S.; Lucaciu, I.; Feodorov, L.; Nita-Lazar, M. COVID-19 Pandemic Modulates the Environmental Contamination Level of Enteric Bacteria from WWTPs. Water 2024, 16, 1092. Banciu, A.R.; Pascu, L.F.; Stoica, C.; Gheorghe, S.; Lucaciu, I.; Feodorov, L.; Nita-Lazar, M. COVID-19 Pandemic Modulates the Environmental Contamination Level of Enteric Bacteria from WWTPs. Water 2024, 16, 1092.

Abstract

The Covid-19 pandemic was a challenge for the whole world and it had major secondary effects on humans and environmental health. The viral infection induced, in many situations, secondary bacterial infections, especially enteric infections by destabilizing the balance of the gastrointestinal microbiota. The large-scale use of antibiotics and biocides both for curative and preventive purposes has determined an increase in bacterial resistance and at the same time the possibility of pathogenic microorganisms’ multiplication and their dissemination to natural environments. Wastewater is the main vector of faecal microorganisms that favour their dissemination into natural aquatic ecosystems. The present paper aimed to analyze the effect of Covid-19 pandemic on the microbiological quality of wastewater from sewage treatment plants in Romania and its impact on receiving rivers. In order to highlight different and important areas of Romania, 3 cities from the east, center and west were selected for a microbiological evaluation of their WWTPs influent and effluent between ante-Covid-19 and Covid-19 pandemic peak period, when the Covid-19 pandemic had a direct impact on WWTPs microbial composition. Our study showed a higher contamination with fecal bacteria linked to a higher Covid-19 incidence. The increased usage of pharmaceutical compounds, at their turn, increased the number of resistant bacteria reaching the environment via WWTP effluents.

Keywords

pathogen; wastewater; pharmaceutical compounds, Covid-19

Subject

Environmental and Earth Sciences, Pollution

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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