Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/5973 |
Resumo: | The southern area of the Patos Lagoon estuary has been subjected to intense industrial and port-related activities which have not only caused meaningful changes in the landscape but also degraded aquatic resources by contaminating them with dissolved nutrients and trace metals in the last decades. This study aims at compiling data on the development that has happened in the urban and industrial occupation in Rio Grande, a city located in the south of Rio Grande do Sul, RS, Brazil, by relating it to the main results of contamination indicators in the estuarine environment regarding water, sediment, soil and atmosphere. Bibliographic data have shown an increase in domestic effluents around the city in the 1980’s, mainly in more sheltered areas, such as the Saco da Mangueira, where cyanobacteria eutrophication has often occurred because of the high concentration of nutrients. The content of trace metals in the water of channel areas of the estuary was always lower than the maximum limit established by Brazilian quality criteria. However, the sediment showed higher concentrations of some trace metals (e.g. copper, lead, nickel, vanadium and zinc), the metalloid As and Hg than the maximum concentrations established by the legislation, mainly in several places around urban, industrial and port areas. The labile fraction (or potentially bioavailable) in the water and in the sediment showed that trace metals have provided significant contributions to sheltered areas, such as marinas, but have exceeded in shipyards. Trace metals in the urban soil and man-made ground of the city indicated that there were anthropogenic contributions, mainly by mercury. Anomalies in the content of lead found in the atmospheric particulate matter and acid rain were also reported. Therefore, more severe environmental policies, effective control, industrial wastewater treatment and control of atmospheric emissions must be carried out in order to maintain environmental quality and public health. The city authorities in Rio Grande need to implement the existing integrated estuary management program in a proper and practical way, involving stakeholders and local governments. |
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Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, BrazilTemporal evolution of the contamination in the southern area of the patos lagoon estuary, RS, BrazilContaminationNutrientsTrace metalsEstuaryEnvironmental managemenContaminaçãoMetais traçoNutrientesEstuárioGestão ambientalThe southern area of the Patos Lagoon estuary has been subjected to intense industrial and port-related activities which have not only caused meaningful changes in the landscape but also degraded aquatic resources by contaminating them with dissolved nutrients and trace metals in the last decades. This study aims at compiling data on the development that has happened in the urban and industrial occupation in Rio Grande, a city located in the south of Rio Grande do Sul, RS, Brazil, by relating it to the main results of contamination indicators in the estuarine environment regarding water, sediment, soil and atmosphere. Bibliographic data have shown an increase in domestic effluents around the city in the 1980’s, mainly in more sheltered areas, such as the Saco da Mangueira, where cyanobacteria eutrophication has often occurred because of the high concentration of nutrients. The content of trace metals in the water of channel areas of the estuary was always lower than the maximum limit established by Brazilian quality criteria. However, the sediment showed higher concentrations of some trace metals (e.g. copper, lead, nickel, vanadium and zinc), the metalloid As and Hg than the maximum concentrations established by the legislation, mainly in several places around urban, industrial and port areas. The labile fraction (or potentially bioavailable) in the water and in the sediment showed that trace metals have provided significant contributions to sheltered areas, such as marinas, but have exceeded in shipyards. Trace metals in the urban soil and man-made ground of the city indicated that there were anthropogenic contributions, mainly by mercury. Anomalies in the content of lead found in the atmospheric particulate matter and acid rain were also reported. Therefore, more severe environmental policies, effective control, industrial wastewater treatment and control of atmospheric emissions must be carried out in order to maintain environmental quality and public health. The city authorities in Rio Grande need to implement the existing integrated estuary management program in a proper and practical way, involving stakeholders and local governments.A parte sul do estuário da Lagoa dos Patos apresenta intensa atividade portuária e industrial, sendo que estas propiciaram nas últimas décadas alterações significativas na paisagem e na degradação dos recursos hídricos, incluindo a contaminação por nutrientes dissolvidos e por metais traço. Este estudo visa compilar uma revisão dos impactos resultantes do desenvolvimento da ocupação urbana, industrial e naval da cidade do Rio Grande ao longo dos anos, procurando relacioná-los com os principais resultados de indicadores da contaminação do ambiente estuarino nos compartimentos água, sedimento, solo e atmosfera da região. Os dados bibliográficos indicaram um acréscimo do lançamento de efluentes domésticos ao redor da cidade nos anos de 1980, principalmente em área mais abrigadas do estuário como o Saco da Mangueira, o que vem promovendo desequilíbrios tróficos (hipertrofia das águas de margem) e frequente florações de cianobactérias, devido ao aporte de nutrientes. Os teores de metais traço na água de áreas de canal no estuário se encontram dentro dos limites estabelecidos pela legislação vigente. Entretanto, o sedimento demonstrou altas concentrações de alguns metais traço (por ex. cobre, chumbo, níquel, vanádio e zinco), o metaloide As e o Hg, acima do estabelecido pela legislação, principalmente em vários locais ao redor da área urbana, industrial e portuária da cidade. A fração lábil (ou potencialmente biodisponível) de metais traço em água e sedimento indicaram contribuições significativas em áreas abrigadas como marinas e excederam em áreas de estaleiros. Metais traço nos solos e os aterros da cidade mostraram contribuições antropogênicas, com destaque para o mercúrio. Anomalias nos teores de chumbo no material particulado atmosférico e chuva ácida foram também reportados. Urge uma política ambiental mais severa e com efetiva fiscalização, proibindo fluentes clandestinos, exigindo tratamento básico dos efluentes pelas indústrias e controle das emissões atmosféricas, que vise a manutenção da qualidade ambiental e saúde pública da população que vive na área estuarina. O poder público do município de Rio Grande deve implementar de forma apropriada e prática o existente programa de gestão integrada para o estuário, envolvendo as partes interessadas e governantes locais.2016-02-26T15:00:45Z2016-02-26T15:00:45Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfKERSANACHA, Mônica Wallner et al. Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil. Journal of Integrated Coastal Zone Management, v. 16, p. 1-17, 2015. Disponível em:<http://www.aprh.pt/rgci/pdf/rgci-596_Wallner-Kersanach.pdf>. Acesso em: 21 Fev. 2016.1646-8872http://repositorio.furg.br/handle/1/597310.5894/rgci596engWallner-Kersanach, MônicaMirlean, NicolaiBaumgarten, Maria da Graça ZepkaCosta, Luiza Dy FonsecaBaisch, Paulo Roberto Martinsinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2023-01-06T17:08:28Zoai:repositorio.furg.br:1/5973Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2023-01-06T17:08:28Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil Temporal evolution of the contamination in the southern area of the patos lagoon estuary, RS, Brazil |
title |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil |
spellingShingle |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil Wallner-Kersanach, Mônica Contamination Nutrients Trace metals Estuary Environmental managemen Contaminação Metais traço Nutrientes Estuário Gestão ambiental |
title_short |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil |
title_full |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil |
title_fullStr |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil |
title_full_unstemmed |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil |
title_sort |
Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil |
author |
Wallner-Kersanach, Mônica |
author_facet |
Wallner-Kersanach, Mônica Mirlean, Nicolai Baumgarten, Maria da Graça Zepka Costa, Luiza Dy Fonseca Baisch, Paulo Roberto Martins |
author_role |
author |
author2 |
Mirlean, Nicolai Baumgarten, Maria da Graça Zepka Costa, Luiza Dy Fonseca Baisch, Paulo Roberto Martins |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Wallner-Kersanach, Mônica Mirlean, Nicolai Baumgarten, Maria da Graça Zepka Costa, Luiza Dy Fonseca Baisch, Paulo Roberto Martins |
dc.subject.por.fl_str_mv |
Contamination Nutrients Trace metals Estuary Environmental managemen Contaminação Metais traço Nutrientes Estuário Gestão ambiental |
topic |
Contamination Nutrients Trace metals Estuary Environmental managemen Contaminação Metais traço Nutrientes Estuário Gestão ambiental |
description |
The southern area of the Patos Lagoon estuary has been subjected to intense industrial and port-related activities which have not only caused meaningful changes in the landscape but also degraded aquatic resources by contaminating them with dissolved nutrients and trace metals in the last decades. This study aims at compiling data on the development that has happened in the urban and industrial occupation in Rio Grande, a city located in the south of Rio Grande do Sul, RS, Brazil, by relating it to the main results of contamination indicators in the estuarine environment regarding water, sediment, soil and atmosphere. Bibliographic data have shown an increase in domestic effluents around the city in the 1980’s, mainly in more sheltered areas, such as the Saco da Mangueira, where cyanobacteria eutrophication has often occurred because of the high concentration of nutrients. The content of trace metals in the water of channel areas of the estuary was always lower than the maximum limit established by Brazilian quality criteria. However, the sediment showed higher concentrations of some trace metals (e.g. copper, lead, nickel, vanadium and zinc), the metalloid As and Hg than the maximum concentrations established by the legislation, mainly in several places around urban, industrial and port areas. The labile fraction (or potentially bioavailable) in the water and in the sediment showed that trace metals have provided significant contributions to sheltered areas, such as marinas, but have exceeded in shipyards. Trace metals in the urban soil and man-made ground of the city indicated that there were anthropogenic contributions, mainly by mercury. Anomalies in the content of lead found in the atmospheric particulate matter and acid rain were also reported. Therefore, more severe environmental policies, effective control, industrial wastewater treatment and control of atmospheric emissions must be carried out in order to maintain environmental quality and public health. The city authorities in Rio Grande need to implement the existing integrated estuary management program in a proper and practical way, involving stakeholders and local governments. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2016-02-26T15:00:45Z 2016-02-26T15:00:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
KERSANACHA, Mônica Wallner et al. Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil. Journal of Integrated Coastal Zone Management, v. 16, p. 1-17, 2015. Disponível em:<http://www.aprh.pt/rgci/pdf/rgci-596_Wallner-Kersanach.pdf>. Acesso em: 21 Fev. 2016. 1646-8872 http://repositorio.furg.br/handle/1/5973 10.5894/rgci596 |
identifier_str_mv |
KERSANACHA, Mônica Wallner et al. Temporal evolution of the contamionation in the southern area of patos lagoon estuary,RS, Brazil. Journal of Integrated Coastal Zone Management, v. 16, p. 1-17, 2015. Disponível em:<http://www.aprh.pt/rgci/pdf/rgci-596_Wallner-Kersanach.pdf>. Acesso em: 21 Fev. 2016. 1646-8872 10.5894/rgci596 |
url |
http://repositorio.furg.br/handle/1/5973 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
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1807384388561797120 |