Airborne microplastics and SARS-CoV-2 in total suspended particles in the area surrounding the largest medical centre in Latin America

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Arquivos
art_AMATO-LOURENCO_Airborne_microplastics_and_SARSCoV2_in_total_suspended_particles_2022.PDF (5.63 MB)
Citações na Scopus
42
Tipo de produção
article
Data de publicação
2022
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
ELSEVIER SCI LTD
Autores
AMATO-LOURENCO, Luis Fernando
GALVA, Luciana dos Santos
MORALLES, Fernando Negri
LOMBARDI, Suzette Cleuza Ferreira Spina
ANDO, Romulo Augusto
Citação
ENVIRONMENTAL POLLUTION, v.292, article ID 118299, 8p, 2022
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Microplastics (MPs) have been reported in the outdoor/indoor air of urban centres, raising health concerns due to the potential for human exposure. Since aerosols are considered one of the routes of Coronavirus disease 2019 (COVID-19) transmission and may bind to the surface of airborne MPs, we hypothesize that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) could be associated with the levels of MPs in the air. Our goal was to quantify the SARS-CoV-2 RNA and MPs present in the total suspended particles (TSP) collected in the area surrounding the largest medical centre in Latin America and to elucidate a possible association among weather variables, MPs, and SARS-CoV-2 in the air. TSP were sampled from three outdoor locations in the areas surrounding a medical centre. MPs were quantified and measured under a fluorescence microscope, and their polymeric composition was characterized by Fourier transform infrared (FT-IR) microspectroscopy coupled with attenuated total reflectance (ATR). The viral load of SARS-CoV-2 was quantified by an in-house real-time PCR assay. A generalized linear model (GzLM) was employed to evaluate the effect of the SARS-CoV-2 quantification on MPs and weather variables. TSP samples tested positive for SARS-CoV-2 in 22 out of 38 samples at the three sites. Polyester was the most frequent polymer (80%) found in the samples. The total amount of MPs was positively associated with the quantification of SARS-CoV-2 envelope genes and negatively associated with weather variables (temperature and relative humidity). Our findings show that SARS-CoV-2 aerosols may bind to TSP, such as MPs, and facilitate virus entry into the human body.
Palavras-chave
Airborne microplastic, SARS-CoV-2 RNA, Public health, Aerosols
URI
https://observatorio.fm.usp.br/handle/OPI/43852
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MIP
Artigos e Materiais de Revistas Científicas - COVID-19
Artigos e Materiais de Revistas Científicas - FM/MPT
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - LIM/05
Artigos e Materiais de Revistas Científicas - LIM/31
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