Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in Brazil
<abstract language="eng">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 atmo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2007-04-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200024 |
| _version_ | 1818993979529625600 |
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| author | Luiz Drude de Lacerda Angelo Francisco dos Santos Rozane Valente Marins |
| author_facet | Luiz Drude de Lacerda Angelo Francisco dos Santos Rozane Valente Marins |
| author_sort | Luiz Drude de Lacerda |
| collection | DOAJ |
| description | <abstract language="eng">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. |
| first_indexed | 2024-12-20T20:50:39Z |
| format | Article |
| id | doaj.art-62507541ffff4f4fbc17ad57e1d61062 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-20T20:50:39Z |
| publishDate | 2007-04-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-62507541ffff4f4fbc17ad57e1d610622022-12-21T19:26:56ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642007-04-0130236636910.1590/S0100-40422007000200024Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in BrazilLuiz Drude de LacerdaAngelo Francisco dos SantosRozane Valente Marins<abstract language="eng">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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200024mercurynatural gasatmospheric emissions |
| spellingShingle | Luiz Drude de Lacerda Angelo Francisco dos Santos Rozane Valente Marins Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in Brazil Química Nova mercury natural gas atmospheric emissions |
| title | Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in Brazil |
| title_full | Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in Brazil |
| title_fullStr | Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in Brazil |
| title_full_unstemmed | Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in Brazil |
| title_short | Emissão de mercúrio para a atmosfera pela queima de gás natural no Brasil Mercury emissions to the atmosphere from natural gas burning in Brazil |
| title_sort | emissao de mercurio para a atmosfera pela queima de gas natural no brasil mercury emissions to the atmosphere from natural gas burning in brazil |
| topic | mercury natural gas atmospheric emissions |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200024 |
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