MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ciências Ambientais (Online) |
Texto Completo: | https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/21 |
Resumo: | Dumps are important anthropogenic sources of greenhouse gas emissions into the atmosphere, mostly CH4. However, few studies on the subject have been carried out in the Amazon region. Several factors affect the production and emission of dumps gas. The objective of this study was to quantify the spatial variation of CO2 and CH4 production in an Amazon dump and try to associate the relative importance of some environmental factors with the fluxes. This study was carried out in an open-air dump in the metropolitan region of Belém, where approximately 11.0 million Mg of waste was deposited in 25 years, of which 6.4 million Mg was organic. The emission rates of CH4 and CO2 from the surface of the dump were determined using the closed dynamic flux chamber technique. The study was conducted in three cells of different ages, sampled in two moments between the Amazon rainy and dry season. The Aura dump has an area of 30 ha and emits a total of 51.49 Mg CO2 ha-1 month-1 and 3.16 Mg CH4 ha-1 month-1 to the atmosphere. This results in an expressive production of 1,359,961.04 Mg CO2-e year-1, being that 58.54% is due to CH4 flux. The spatial variability in CO2 and CH4 flux is very large, especially for CH4, forming hotspots of high concentrations, and perhaps because of this, the flow has not been correlated with micrometeorological variations. |
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MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIACARBON DIOXIDE AND METHANE FLUX MEASUREMENTS AT A LARGE UNSANITARY DUMPING SITE IN THE AMAZON REGIONEmissão de metanoLixão a céu abertoAmazôniapollution; flux chamber; open dumping; Amazonpoluição; câmaras de fluxo; lixão a céu aberto; AmazôniaDumps are important anthropogenic sources of greenhouse gas emissions into the atmosphere, mostly CH4. However, few studies on the subject have been carried out in the Amazon region. Several factors affect the production and emission of dumps gas. The objective of this study was to quantify the spatial variation of CO2 and CH4 production in an Amazon dump and try to associate the relative importance of some environmental factors with the fluxes. This study was carried out in an open-air dump in the metropolitan region of Belém, where approximately 11.0 million Mg of waste was deposited in 25 years, of which 6.4 million Mg was organic. The emission rates of CH4 and CO2 from the surface of the dump were determined using the closed dynamic flux chamber technique. The study was conducted in three cells of different ages, sampled in two moments between the Amazon rainy and dry season. The Aura dump has an area of 30 ha and emits a total of 51.49 Mg CO2 ha-1 month-1 and 3.16 Mg CH4 ha-1 month-1 to the atmosphere. This results in an expressive production of 1,359,961.04 Mg CO2-e year-1, being that 58.54% is due to CH4 flux. The spatial variability in CO2 and CH4 flux is very large, especially for CH4, forming hotspots of high concentrations, and perhaps because of this, the flow has not been correlated with micrometeorological variations.Lixões são importantes fontes antropogênicas de emissões de gases de efeito estufa na atmosfera, principalmente CH4. No entanto, poucos estudos sobre o assunto foram realizados na região amazônica. Diversos fatores afetam a produção e emissão de gás de aterro. O objetivo deste estudo foi quantificar a variação espacial da produção de CO2 e CH4 em um lixão da Amazônia e tentar associar a importância relativa de alguns fatores ambientais com os fluxos. Este estudo foi realizado em um lixão ao ar livre na região metropolitana de Belém, onde aproximadamente 11,0 milhões de Mg de resíduos foram depositados em 25 anos, dos quais 6,4 milhões de Mg foram orgânicos. As taxas de emissão de CH4 e CO2 da superfície do aterro foram determinadas usando a técnica de câmara de fluxo dinâmico fechado. O estudo foi realizado em três células de diferentes idades, amostradas em dois momentos entre a estação chuvosa e seca da Amazônia. O lixão Aura tem uma área de 30 ha e emite um total de 51,49 Mg CO2 ha-1 mês-1 e 3,16 Mg CH4 ha-1 mês-1 para a atmosfera. Isso resulta em uma produção expressiva de 1.359.961,04 Mg CO2-e ano-1, sendo 58,54% devido ao fluxo de CH4. A variabilidade espacial no fluxo de CO2 e CH4 é muito grande, especialmente para CH4, formando “hotspots” de altas concentrações, e talvez por isso, o fluxo não tenha sido correlacionado com variações micrometeorológicas.Zeppelini Publishers2019-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/2110.5327/Z2176-947820190021Revista Brasileira de Ciências Ambientais (Online); n. 54 (2019): RBCIAMB - ISSN 2176-9478 - Dezembro; 13-33Brazilian Journal of Environmental Sciences (Online); No. 54 (2019): RBCIAMB - ISSN 2176-9478 - December; 13-332176-94781808-4524reponame:Revista Brasileira de Ciências Ambientais (Online)instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)instacron:ABESenghttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/21/498Copyright (c) 2019 Brazilian Journal of Environmental Sciences (Online)info:eu-repo/semantics/openAccessPinheiro, Layse TeixeiraCattanio, Jose HenriqueImbiriba, BrenoCastellon, Saul Edgardo MartinezElesbão, Silvia AdrianeRamos, Jade Rebeka de Souza2022-03-25T22:07:48Zoai:ojs.www.rbciamb.com.br:article/21Revistahttp://www.rbciamb.com.br/index.php/Publicacoes_RBCIAMBhttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/oairbciamb@abes-dn.org.br||2176-94781804-4524opendoar:2022-03-25T22:07:48Revista Brasileira de Ciências Ambientais (Online) - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)false |
dc.title.none.fl_str_mv |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA CARBON DIOXIDE AND METHANE FLUX MEASUREMENTS AT A LARGE UNSANITARY DUMPING SITE IN THE AMAZON REGION |
title |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA |
spellingShingle |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA Pinheiro, Layse Teixeira Emissão de metano Lixão a céu aberto Amazônia pollution; flux chamber; open dumping; Amazon poluição; câmaras de fluxo; lixão a céu aberto; Amazônia |
title_short |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA |
title_full |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA |
title_fullStr |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA |
title_full_unstemmed |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA |
title_sort |
MEDIDAS DE FLUXO DE DIÓXIDO DE CARBONO E METANO EM UM DEPÓSITO DE RESÍDUOS INSALUBRE NA AMAZÔNIA |
author |
Pinheiro, Layse Teixeira |
author_facet |
Pinheiro, Layse Teixeira Cattanio, Jose Henrique Imbiriba, Breno Castellon, Saul Edgardo Martinez Elesbão, Silvia Adriane Ramos, Jade Rebeka de Souza |
author_role |
author |
author2 |
Cattanio, Jose Henrique Imbiriba, Breno Castellon, Saul Edgardo Martinez Elesbão, Silvia Adriane Ramos, Jade Rebeka de Souza |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pinheiro, Layse Teixeira Cattanio, Jose Henrique Imbiriba, Breno Castellon, Saul Edgardo Martinez Elesbão, Silvia Adriane Ramos, Jade Rebeka de Souza |
dc.subject.por.fl_str_mv |
Emissão de metano Lixão a céu aberto Amazônia pollution; flux chamber; open dumping; Amazon poluição; câmaras de fluxo; lixão a céu aberto; Amazônia |
topic |
Emissão de metano Lixão a céu aberto Amazônia pollution; flux chamber; open dumping; Amazon poluição; câmaras de fluxo; lixão a céu aberto; Amazônia |
description |
Dumps are important anthropogenic sources of greenhouse gas emissions into the atmosphere, mostly CH4. However, few studies on the subject have been carried out in the Amazon region. Several factors affect the production and emission of dumps gas. The objective of this study was to quantify the spatial variation of CO2 and CH4 production in an Amazon dump and try to associate the relative importance of some environmental factors with the fluxes. This study was carried out in an open-air dump in the metropolitan region of Belém, where approximately 11.0 million Mg of waste was deposited in 25 years, of which 6.4 million Mg was organic. The emission rates of CH4 and CO2 from the surface of the dump were determined using the closed dynamic flux chamber technique. The study was conducted in three cells of different ages, sampled in two moments between the Amazon rainy and dry season. The Aura dump has an area of 30 ha and emits a total of 51.49 Mg CO2 ha-1 month-1 and 3.16 Mg CH4 ha-1 month-1 to the atmosphere. This results in an expressive production of 1,359,961.04 Mg CO2-e year-1, being that 58.54% is due to CH4 flux. The spatial variability in CO2 and CH4 flux is very large, especially for CH4, forming hotspots of high concentrations, and perhaps because of this, the flow has not been correlated with micrometeorological variations. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/21 10.5327/Z2176-947820190021 |
url |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/21 |
identifier_str_mv |
10.5327/Z2176-947820190021 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/21/498 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Brazilian Journal of Environmental Sciences (Online) info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Brazilian Journal of Environmental Sciences (Online) |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Zeppelini Publishers |
publisher.none.fl_str_mv |
Zeppelini Publishers |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciências Ambientais (Online); n. 54 (2019): RBCIAMB - ISSN 2176-9478 - Dezembro; 13-33 Brazilian Journal of Environmental Sciences (Online); No. 54 (2019): RBCIAMB - ISSN 2176-9478 - December; 13-33 2176-9478 1808-4524 reponame:Revista Brasileira de Ciências Ambientais (Online) instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) instacron:ABES |
instname_str |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
instacron_str |
ABES |
institution |
ABES |
reponame_str |
Revista Brasileira de Ciências Ambientais (Online) |
collection |
Revista Brasileira de Ciências Ambientais (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Ciências Ambientais (Online) - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
repository.mail.fl_str_mv |
rbciamb@abes-dn.org.br|| |
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1797068919399251968 |