Título: | AIR QUALITY ASSESSMENT IN RIO DE JANEIRO: FROM THE OLYMPIC GAMES TO THE PANDEMIC | ||||||||||||
Autor: |
ELIZANNE PORTO DE SOUSA JUSTO |
||||||||||||
Colaborador(es): |
ADRIANA GIODA - Orientador |
||||||||||||
Catalogação: | 25/MAI/2022 | Língua(s): | PORTUGUESE - BRAZIL |
||||||||||
Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
||||||||||||
Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=59197&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=59197&idi=2 |
||||||||||||
DOI: | https://doi.org/10.17771/PUCRio.acad.59197 | ||||||||||||
Resumo: | |||||||||||||
This work aimed to study the levels of the chemical composition of PM2.5
and PM10 and gases collected in urban-coastal areas, in order to assess the impact
of the Olympic Games and the pandemic on air quality in Rio de Janeiro. The
results showed the increase of PM2.5 and PM10 due to urban activities developed
during the Olympic Games and the works that were still being carried out in the
first half of 2016. In all sites inorganic species reflected the influence of
secondary aerosol and marine contributions. The vehicular emitted species Fe and
Cu were the most abundant elements found in the particles, mostly detected in
PM10. The source apportionment was obtained with Positive Matrix Factorization
(PMF); four aerosol sources were identified at the sites: vehicular, marine spray,
secondary formation and a mix of industrial and soil resuspension. A total of 37
PAHs were analyzed. The average concentration of the 16 PAHs sum considered
priority represented > 30 %. For most stations, the distribution was characterized
by the predominance of compounds with a mass between 252 and 276. Regarding
the pandemic, the results showed that the partial lockdown affected pollutant
levels by reducing sources emission. A decrease in SO2, NO2, and CO was
observed; while there was an increase in O3 concentration. Thereby, the partial
lockdown contributed to improving air quality in Rio de Janeiro City.
|
|||||||||||||
|