Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil

Detalhes bibliográficos
Autor(a) principal: Lacerda,Luiz Drude de
Data de Publicação: 2007
Outros Autores: Santos,Angelo Francisco dos, Marins,Rozane Valente
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200024
Resumo: Increasing natural gas use in Brazil triggered a discussion of its role as a Hg source. We show that Hg emissions to the atmosphere from fossil fuel combustion for power generation in Brazil contribute with 6.2% (4.2 t yr-1) to the total anthropogenic Hg atmospheric emissions, with coal combustion and biomass burning as major sources. Natural gas contributes with 0.04 t yr-1, mostly from electricity generation (88%) and industrial uses (7.6%). Preliminary results on Hg concentrations in natural gas suggest that a large fraction of it is trapped during refining and transport, which may create Hg point sources between extraction and consumption.
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spelling Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasilmercurynatural gasatmospheric emissionsIncreasing natural gas use in Brazil triggered a discussion of its role as a Hg source. We show that Hg emissions to the atmosphere from fossil fuel combustion for power generation in Brazil contribute with 6.2% (4.2 t yr-1) to the total anthropogenic Hg atmospheric emissions, with coal combustion and biomass burning as major sources. Natural gas contributes with 0.04 t yr-1, mostly from electricity generation (88%) and industrial uses (7.6%). Preliminary results on Hg concentrations in natural gas suggest that a large fraction of it is trapped during refining and transport, which may create Hg point sources between extraction and consumption.Sociedade Brasileira de Química2007-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200024Química Nova v.30 n.2 2007reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422007000200024info:eu-repo/semantics/openAccessLacerda,Luiz Drude deSantos,Angelo Francisco dosMarins,Rozane Valentepor2007-03-13T00:00:00Zoai:scielo:S0100-40422007000200024Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2007-03-13T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
title Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
spellingShingle Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
Lacerda,Luiz Drude de
mercury
natural gas
atmospheric emissions
title_short Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
title_full Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
title_fullStr Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
title_full_unstemmed Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
title_sort Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil
author Lacerda,Luiz Drude de
author_facet Lacerda,Luiz Drude de
Santos,Angelo Francisco dos
Marins,Rozane Valente
author_role author
author2 Santos,Angelo Francisco dos
Marins,Rozane Valente
author2_role author
author
dc.contributor.author.fl_str_mv Lacerda,Luiz Drude de
Santos,Angelo Francisco dos
Marins,Rozane Valente
dc.subject.por.fl_str_mv mercury
natural gas
atmospheric emissions
topic mercury
natural gas
atmospheric emissions
description Increasing natural gas use in Brazil triggered a discussion of its role as a Hg source. We show that Hg emissions to the atmosphere from fossil fuel combustion for power generation in Brazil contribute with 6.2% (4.2 t yr-1) to the total anthropogenic Hg atmospheric emissions, with coal combustion and biomass burning as major sources. Natural gas contributes with 0.04 t yr-1, mostly from electricity generation (88%) and industrial uses (7.6%). Preliminary results on Hg concentrations in natural gas suggest that a large fraction of it is trapped during refining and transport, which may create Hg point sources between extraction and consumption.
publishDate 2007
dc.date.none.fl_str_mv 2007-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200024
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200024
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422007000200024
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.30 n.2 2007
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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