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

Autor: Pablo Fdez-Arroyabe, Ignacio Fernández-Olmo, Ana Santurtún, María T. Zarrabeitia, Marina L. Colom, Álvaro del Real
Přispěvatelé: Universidad de Cantabria
Rok vydání: 2022
Předmět:
Zdroj: Environmental Research
Environmental Research, 2022, 206, 112261
UCrea Repositorio Abierto de la Universidad de Cantabria
Universidad de Cantabria (UC)
ISSN: 0013-9351
DOI: 10.1016/j.envres.2021.112261
Popis: 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. “This work has been carried out within the framework of the project “Air pollution and COVID-19: what can we learn from this pandemic?” of the Call for Grants from the BBVA Foundation to Scientific Research Teams in SARS-CoV-2 and COVID-19, in the area of Ecology and Veterinary Medicine”
Databáze: OpenAIRE