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Exposure assessment of severe acute respiratory syndrome coronavirus 2 and norovirus genogroup I/genogroup II in aerosols generated by a municipal wastewater treatment plant
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Orientador(es)
Resumo(s)
The presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in wastewater and its potential as an airborne transmission source require extensive investigation, particularly in wastewater treatment plants (WWTPs), where few studies have been conducted. The aim of this study was to investigate the presence of SARS-CoV-2 and norovirus (NoV) RNA in wastewater and air samples collected from a municipal WWTP. In addition, the study assessed the potential risk of viral exposure among WWTP employees. In both the summer and winter campaigns of this study, SARS-CoV-2 and NoV RNA were quantified in wastewater/sludge samples other than effluent. Viral RNA was not detected in any of the air samples collected. The exposure risk assessment with the SARS-CoV-2 RNA concentrations in the influent pumping station of this study shows a lower risk than the calculation with the historical data provided by AquaVall, but both show a low-to-medium exposure risk for the WWTP workers. The sensitivity analysis shows that the result of the model is strongly influenced by the SARS-CoV-2 RNA quantification in the wastewater. This study underscores the need for extensive investigations into the presence and viability of SARS-CoV-2 in wastewater, especially as a potential airborne transmission source within WWTPs.
Descrição
Marie Skłodowska-Curie Actions Postdoctoral Fellowship, Grant/Award Number: PLASMARISE – 101151154.
Regional Government of Castilla y León and the FEDER program, Grant/Award Numbers: CLU2017-09, CL-EI-2021-07, UIC315, VA266P20;
Associate Laboratory ARNET—Aquatic Research Network. Agua de Valladolid.
© 2024 The Author(s). CLEAN – Soil, Air, Water published by Wiley-VCH GmbH.
Palavras-chave
aerosol norovirus occupational health SARS-CoV-2 wastewater Environmental Chemistry Water Science and Technology Pollution SDG 3 - Good Health and Well-being SDG 6 - Clean Water and Sanitation SDG 11 - Sustainable Cities and Communities