Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/5746 |
Resumo: | Polychlorinated biphenyls (PCBs) are toxic, non-biodegradable, and lipophilic chemical compounds of industrial origin. In Brazil, PCBs are still used in old electrical transformers and capacitors which were installed up to 1981 when their use and commercialization were banned. However, the permission to use devices with PCBs installed up to the early 80s was maintained up to the moment that their dielectric fluids or the entire device be fully replaced for products free of PCBs. Currently, PCBs are classified as persistent organic pollutants (POPs) because they pollute and accumulate in the environment affecting all organisms in the food chain. The main form of human intake is the ingestion of contaminated food, especially food of animal origin. Fish are the main means of transmission of PCB congeners to the human body. The concern about PCBs is centered on their toxicological potential, especially as inducers of cancer. Thus, the aim of this study was to investigate the possible contamination by residues of 11 individual PCB congeners in fresh marine fish from the state of Rio Grande do Sul (RS), Brazil. The methodology for the analysis of PCBs in fish included sampling on the coast of RS, the extraction and purification of these compounds by the use of acidified silica gel and solvents, as well as their identification and quantification using gas chromatography coupled to a micro electron capture detector (GC - μECD). Results were confirmed by gas chromatography coupled to mass spectrometry (GC - MS). PCBs investigated were not found in all samples. PCBs 28 and 52 were not detected. PCBs 153, 138, 180, 118, 101, 77, and 81 were found in 98.33 %, 95%, 93.33%, 60%, 33.33 %, and 31.67 % of the samples, respectively. PCBs 126 and 169 were found at lower frequencies, 18.33% and 15%, respectively. The individual congeners found in higher mean concentrations were PCB 153 (184.36 ng/g fat), followed by PCB 138 (159.27 ng/g fat), PCB 118 (98.16 ng/g fat), PCB 180 (69.04 ng/g fat), PCB 101 (32.99 ng/g fat), and PCB 77 (12.95 ng/g fat). PCBs 81, 126 and 169 were found in lower concentrations (4.97 ng/g, 4.49 ng/g and 2.08 ng/g fat, respectively). Results confirm the contamination by PCBs of all marine species of consumption analyzed and can be used as indicators of environmental contamination by these compounds in the coast of RS. |
id |
UFSM_c42326e4393ecac84e97817429b111d0 |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/5746 |
network_acronym_str |
UFSM |
network_name_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
repository_id_str |
|
spelling |
2014-10-012014-10-012013-08-05PIGATTO, Giane Magrini. Polychlorinated biphenyls (PCBs) in fish in natura from the coast of Rio Grande do Sul, Brazil. 2013. 70 f. Dissertação (Mestrado em Ciência e Tecnologia dos Alimentos) - Universidade Federal de Santa Maria, Santa Maria, 2013.http://repositorio.ufsm.br/handle/1/5746Polychlorinated biphenyls (PCBs) are toxic, non-biodegradable, and lipophilic chemical compounds of industrial origin. In Brazil, PCBs are still used in old electrical transformers and capacitors which were installed up to 1981 when their use and commercialization were banned. However, the permission to use devices with PCBs installed up to the early 80s was maintained up to the moment that their dielectric fluids or the entire device be fully replaced for products free of PCBs. Currently, PCBs are classified as persistent organic pollutants (POPs) because they pollute and accumulate in the environment affecting all organisms in the food chain. The main form of human intake is the ingestion of contaminated food, especially food of animal origin. Fish are the main means of transmission of PCB congeners to the human body. The concern about PCBs is centered on their toxicological potential, especially as inducers of cancer. Thus, the aim of this study was to investigate the possible contamination by residues of 11 individual PCB congeners in fresh marine fish from the state of Rio Grande do Sul (RS), Brazil. The methodology for the analysis of PCBs in fish included sampling on the coast of RS, the extraction and purification of these compounds by the use of acidified silica gel and solvents, as well as their identification and quantification using gas chromatography coupled to a micro electron capture detector (GC - μECD). Results were confirmed by gas chromatography coupled to mass spectrometry (GC - MS). PCBs investigated were not found in all samples. PCBs 28 and 52 were not detected. PCBs 153, 138, 180, 118, 101, 77, and 81 were found in 98.33 %, 95%, 93.33%, 60%, 33.33 %, and 31.67 % of the samples, respectively. PCBs 126 and 169 were found at lower frequencies, 18.33% and 15%, respectively. The individual congeners found in higher mean concentrations were PCB 153 (184.36 ng/g fat), followed by PCB 138 (159.27 ng/g fat), PCB 118 (98.16 ng/g fat), PCB 180 (69.04 ng/g fat), PCB 101 (32.99 ng/g fat), and PCB 77 (12.95 ng/g fat). PCBs 81, 126 and 169 were found in lower concentrations (4.97 ng/g, 4.49 ng/g and 2.08 ng/g fat, respectively). Results confirm the contamination by PCBs of all marine species of consumption analyzed and can be used as indicators of environmental contamination by these compounds in the coast of RS.Bifenilos policlorados (PCBs) são compostos químicos de origem industrial, tóxicos, não biodegradáveis, lipofílicos, e que foram produzidos a partir da década de 30 até os anos 70, quando foram proibidos. No Brasil, PCBs estão presentes, por exemplo, em transformadores e capacitores elétricos instalados até 1981, quando a comercialização e utilização desses compostos foram proibidas no país. Porém, manteve-se a permissão de utilização desses equipamentos contendo PCBs e instalados até o início dos anos 80, até que ocorra a substituição integral dos mesmos ou a troca de seus respectivos fluidos dielétricos por produtos isentos de PCBs. Atualmente, PCBs são classificados como poluentes orgânicos persistentes (POPs), pois poluem e se acumulam no meio ambiente, influenciando todos os organismos da cadeia alimentar. A principal forma de contaminação humana é a ingestão de alimentos contaminados, principalmente alimentos de origem animal. Dentre esses, os pescados constituem-se no principal meio de veiculação de congêneres de PCBs até o organismo humano. A preocupação acerca dos PCBs está centrada no seu potencial toxicológico, principalmente como indutores de câncer. Diante disso, o objetivo desse trabalho foi investigar a possível contaminação, por resíduos de 11 congêneres individuais de PCBs, em pescados marinhos in natura do estado do Rio Grande do Sul, Brasil. A metodologia empregada para análise de PCBs nos pescados incluiu a coleta de amostras do litoral do RS, a extração e purificação desses compostos com a utilização de sílica gel acidificada, solventes e, finalmente, a identificação e quantificação dos mesmos utilizando-se cromatografia gasosa acoplada a um micro detector de captura de elétrons (GC-μECD). Os resultados obtidos foram confirmados por cromatógrafo gasoso acoplado à espectrometria de massas (GC-MS). Os PCBs investigados não foram encontrados em todas as amostras analisadas. Os PCBs 28 e 52 não foram detectados. O PCB 153 foi encontrado em 98,33% das amostras analisadas, seguido pelos PCBs 138 e 180 encontrados em 95% das amostras, pelo PCB 118 encontrado em 93,33% das amostras, pelo PCB 101 encontrado em 60% das amostras, pelo PCB 77 e PCB 81, encontrados em 33,33% e 31, 67% das amostras, respectivamente. Os PCBs 126 e 169 foram encontrados com menores freqüências, 18,33% e 15%, respectivamente. Os congêneres individuais encontrados em maiores concentrações médias foram o PCB 153 (184,36 ng/g de gordura), seguido pelo PCB 138 (159,27 ng/g de gordura), PCB 118 (98,16 ng/g de gordura), PCB 180 (69,04 ng/g de gordura), PCB 101 (32,99 ng/g de gordura) e PCB 77 (12,95 ng/g de gordura). Os PCBs 81, 126 e 169 foram encontrados nas menores concentrações (4,97 ng/g, 4,49 ng/g e 2,08 ng/g de gordura, respectivamente). Os resultados obtidos confirmam a contaminação por PCBs de todas as espécies marinhas de consumo analisadas e podem ser utilizados como indicativos da contaminação ambiental, por esses compostos, no litoral do RS.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Ciência e Tecnologia dos AlimentosUFSMBRCiência e Tecnologia dos AlimentosBifenilos policloradosPoluentes orgânicos persistentesPescados marinhosGC-MSContaminaçãoPCB 153Polychlorinated biphenylsPersistent organic pollutantsMarine fishContaminationCNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOSBifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, BrasilPolychlorinated biphenyls (PCBs) in fish in natura from the coast of Rio Grande do Sul, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisSautter, Cláudia Kaehlerhttp://lattes.cnpq.br/9384438325422405Costabeber, Ijoni Hildahttp://lattes.cnpq.br/2529905835093392Hecktheuer, Luisa Helena Rycheckihttp://lattes.cnpq.br/7926116604048817Augusti, Paula Rossinihttp://lattes.cnpq.br/5389076387673136http://lattes.cnpq.br/4844050073417100Pigatto, Giane Magrini500700000006400300300300300300719ed9ea-829a-4c6f-bcb1-eb8d108b5913eaaf0f2a-9bf0-4122-8bc8-a1d563166a446ca50359-1f7b-41dd-8e87-b925fd438bdee1576aa8-32a5-48af-8ba7-e930825075d956fad85d-b2b9-4349-8d55-290cd51d87bbinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALPIGATTO, GIANE MAGRINI.pdfapplication/pdf1023217http://repositorio.ufsm.br/bitstream/1/5746/1/PIGATTO%2c%20GIANE%20MAGRINI.pdf1c1881470192c00ed617d2822297f3afMD51TEXTPIGATTO, GIANE MAGRINI.pdf.txtPIGATTO, GIANE MAGRINI.pdf.txtExtracted texttext/plain129310http://repositorio.ufsm.br/bitstream/1/5746/2/PIGATTO%2c%20GIANE%20MAGRINI.pdf.txt4aeb03930d5bce002db877213a6d37f5MD52THUMBNAILPIGATTO, GIANE MAGRINI.pdf.jpgPIGATTO, GIANE MAGRINI.pdf.jpgIM Thumbnailimage/jpeg5154http://repositorio.ufsm.br/bitstream/1/5746/3/PIGATTO%2c%20GIANE%20MAGRINI.pdf.jpg8a24ea86840137a06481865429fb41cdMD531/57462023-06-19 08:21:38.398oai:repositorio.ufsm.br:1/5746Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2023-06-19T11:21:38Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil |
dc.title.alternative.eng.fl_str_mv |
Polychlorinated biphenyls (PCBs) in fish in natura from the coast of Rio Grande do Sul, Brazil |
title |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil |
spellingShingle |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil Pigatto, Giane Magrini Bifenilos policlorados Poluentes orgânicos persistentes Pescados marinhos GC-MS Contaminação PCB 153 Polychlorinated biphenyls Persistent organic pollutants Marine fish Contamination CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
title_short |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil |
title_full |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil |
title_fullStr |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil |
title_full_unstemmed |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil |
title_sort |
Bifenilos policlorados (PCBs) em pescados in natura do litoral do Rio Grande do Sul, Brasil |
author |
Pigatto, Giane Magrini |
author_facet |
Pigatto, Giane Magrini |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Sautter, Cláudia Kaehler |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9384438325422405 |
dc.contributor.referee1.fl_str_mv |
Costabeber, Ijoni Hilda |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/2529905835093392 |
dc.contributor.referee2.fl_str_mv |
Hecktheuer, Luisa Helena Rychecki |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/7926116604048817 |
dc.contributor.referee3.fl_str_mv |
Augusti, Paula Rossini |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/5389076387673136 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/4844050073417100 |
dc.contributor.author.fl_str_mv |
Pigatto, Giane Magrini |
contributor_str_mv |
Sautter, Cláudia Kaehler Costabeber, Ijoni Hilda Hecktheuer, Luisa Helena Rychecki Augusti, Paula Rossini |
dc.subject.por.fl_str_mv |
Bifenilos policlorados Poluentes orgânicos persistentes Pescados marinhos GC-MS Contaminação PCB 153 |
topic |
Bifenilos policlorados Poluentes orgânicos persistentes Pescados marinhos GC-MS Contaminação PCB 153 Polychlorinated biphenyls Persistent organic pollutants Marine fish Contamination CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
dc.subject.eng.fl_str_mv |
Polychlorinated biphenyls Persistent organic pollutants Marine fish Contamination |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
description |
Polychlorinated biphenyls (PCBs) are toxic, non-biodegradable, and lipophilic chemical compounds of industrial origin. In Brazil, PCBs are still used in old electrical transformers and capacitors which were installed up to 1981 when their use and commercialization were banned. However, the permission to use devices with PCBs installed up to the early 80s was maintained up to the moment that their dielectric fluids or the entire device be fully replaced for products free of PCBs. Currently, PCBs are classified as persistent organic pollutants (POPs) because they pollute and accumulate in the environment affecting all organisms in the food chain. The main form of human intake is the ingestion of contaminated food, especially food of animal origin. Fish are the main means of transmission of PCB congeners to the human body. The concern about PCBs is centered on their toxicological potential, especially as inducers of cancer. Thus, the aim of this study was to investigate the possible contamination by residues of 11 individual PCB congeners in fresh marine fish from the state of Rio Grande do Sul (RS), Brazil. The methodology for the analysis of PCBs in fish included sampling on the coast of RS, the extraction and purification of these compounds by the use of acidified silica gel and solvents, as well as their identification and quantification using gas chromatography coupled to a micro electron capture detector (GC - μECD). Results were confirmed by gas chromatography coupled to mass spectrometry (GC - MS). PCBs investigated were not found in all samples. PCBs 28 and 52 were not detected. PCBs 153, 138, 180, 118, 101, 77, and 81 were found in 98.33 %, 95%, 93.33%, 60%, 33.33 %, and 31.67 % of the samples, respectively. PCBs 126 and 169 were found at lower frequencies, 18.33% and 15%, respectively. The individual congeners found in higher mean concentrations were PCB 153 (184.36 ng/g fat), followed by PCB 138 (159.27 ng/g fat), PCB 118 (98.16 ng/g fat), PCB 180 (69.04 ng/g fat), PCB 101 (32.99 ng/g fat), and PCB 77 (12.95 ng/g fat). PCBs 81, 126 and 169 were found in lower concentrations (4.97 ng/g, 4.49 ng/g and 2.08 ng/g fat, respectively). Results confirm the contamination by PCBs of all marine species of consumption analyzed and can be used as indicators of environmental contamination by these compounds in the coast of RS. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-08-05 |
dc.date.accessioned.fl_str_mv |
2014-10-01 |
dc.date.available.fl_str_mv |
2014-10-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PIGATTO, Giane Magrini. Polychlorinated biphenyls (PCBs) in fish in natura from the coast of Rio Grande do Sul, Brazil. 2013. 70 f. Dissertação (Mestrado em Ciência e Tecnologia dos Alimentos) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/5746 |
identifier_str_mv |
PIGATTO, Giane Magrini. Polychlorinated biphenyls (PCBs) in fish in natura from the coast of Rio Grande do Sul, Brazil. 2013. 70 f. Dissertação (Mestrado em Ciência e Tecnologia dos Alimentos) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
url |
http://repositorio.ufsm.br/handle/1/5746 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500700000006 |
dc.relation.confidence.fl_str_mv |
400 300 300 300 300 300 |
dc.relation.authority.fl_str_mv |
719ed9ea-829a-4c6f-bcb1-eb8d108b5913 eaaf0f2a-9bf0-4122-8bc8-a1d563166a44 6ca50359-1f7b-41dd-8e87-b925fd438bde e1576aa8-32a5-48af-8ba7-e930825075d9 56fad85d-b2b9-4349-8d55-290cd51d87bb |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Ciência e Tecnologia dos Alimentos |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
collection |
Biblioteca Digital de Teses e Dissertações do UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/5746/1/PIGATTO%2c%20GIANE%20MAGRINI.pdf http://repositorio.ufsm.br/bitstream/1/5746/2/PIGATTO%2c%20GIANE%20MAGRINI.pdf.txt http://repositorio.ufsm.br/bitstream/1/5746/3/PIGATTO%2c%20GIANE%20MAGRINI.pdf.jpg |
bitstream.checksum.fl_str_mv |
1c1881470192c00ed617d2822297f3af 4aeb03930d5bce002db877213a6d37f5 8a24ea86840137a06481865429fb41cd |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1801485240333500416 |