Título: | THE IMPORTANCE AND OCCURRENCE OF PHTHALATES IN POTABLE WATERS AND SAMPLES FROM THE GUANABARA BAY ECOSYSTEM | |||||||
Autor: |
ISABELLA RODRIGUES LOUREIRO |
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Colaborador(es): |
ISABEL MARIA NETO DA SILVA MOREIRA - Orientador INAI MARTINS RIBEIRO DE ANDRADE BRUNING - Coorientador |
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Catalogação: | 24/JUN/2003 | Língua(s): | PORTUGUESE - BRAZIL |
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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. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=3654&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=3654&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.3654 | |||||||
Resumo: | ||||||||
Phthalates are the most used plasticizers in industrial
products, worldwide distributed in environments. Their
presence is often used to indicate a region
industrialization degree. Although their reported toxicity
is low, phthalates are indicated for possible endocrine
disrupting effects, specially in male reproductive
system. In Brazil, there are few studies about the
environmental occurrence and distribution of phthalates.
This thesis studied the occurrence of those compounds
in potable waters samples from residential areas of Rio de
Janeiro and Niterói cities, and in samples from the
ecosystem of Guanabara Bay (waters, sediments and mussels),
which receives several industrial inputs. All the samples
were collected, solid-phase extracted and the phthalate
contents analyzed by gas chromatography with electron
capture detection. The ones from the Bay were sampled
during the dry and rainy seasons, in different years. All
the extractions presented excellent repeatability and
recoveries above 76%. The potable water samples from both
cities presented phthalate values considerably lower than
those reported for European and American cities. The
results could be correlated with the water net distribution
lengths for both cities. All results from the Bay
ecosystem showed lower contamination when compared to other
coastal environments. The controlled transplant proved
quick and efficient phthalate depuration of contaminated
organisms from Guanabara Bay.
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