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Exposure to particulate matter: direct and indirect role in the COVID-19 pandemic

Abstract: Knowing the transmission factors and the natural environment that favor the spread of a viral infection is crucial to stop outbreaks and develop effective preventive strategies. This work aims to evaluate the role of Particulate Matter (PM) in the COVID-19 pandemic, focusing especially on that of PM as a vector for SARS-CoV-2. Exposure to PM has been related to new cases and to the clinical severity of people infected by SARS-CoV-2, which can be explained by the oxidative stress and the inflammatory response generated by these particles when entering the respiratory system, as well as by the role of PM in the expression of ACE-2 in respiratory cells in human hosts. In addition, different authors have detected SARS-CoV-2 RNA in PM sampled both in outdoor and indoor environments. The results of various studies lead to the hypothesis that the aerosols emitted by an infected person could be deposited in other suspended particles, sometimes of natural but especially of anthropogenic origin, that form the basal PM. However, the viability of the virus in PM has not yet been demonstrated. Should PM be confirmed as a vector of transmission, prevention strategies ought to be adapted, and PM sampling in outdoor environments could become an indicator of viral load in a specific area.

 Autoría: Santurtún A., Colom M.L., Fdez-Arroyabe P., Real Á.d., Fernández-Olmo I., Zarrabeitia M.T.,

 Fuente: Environmental Research, 2022, 206, 112261

 Editorial: Elsevier

 Fecha de publicación: 15/04/2022

 Nº de páginas: 6

 Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.envres.2021.112261

 ISSN: 0013-9351,1096-0953

 Url de la publicación: https://doi.org/10.1016/j.envres.2021.112261

Autoría

MARINA LAIA COLOM RIERA

ÁLVARO DEL REAL BOLT

MARIA TERESA ZARRABEITIA CIMIANO