| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313383 |
| ISSN: | 0100-4042 |
| Autores: | Lacerda, Luiz Drude de1 Santos, Angelo Francisco dos2 Marins, Rozane Valente3 |
| Instituciones: | 1Universidade Federal Fluminense, Departamento de Geoquimica, Niteroi, Rio de Janeiro. Brasil 2Petroleo Brasileiro S.A., Gas & Energia, Rio de Janeiro. Brasil 3Universidade Federal do Ceara, Instituto de Ciencias do Mar, Fortaleza, Ceara. Brasil |
| Año: | 2007 |
| Periodo: | Abr |
| Volumen: | 30 |
| Número: | 2 |
| Paginación: | 366-369 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | 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 |
| Disciplinas: | Geociencias, Química, Ingeniería |
| Palabras clave: | Ingeniería ambiental, Gas natural, Mercurio, Emisiones atmosféricas, Contaminación atmosférica |
| Keyword: | Earth sciences, Chemistry, Engineering, Environmental engineering, Natural gas, Mercury, Atmospheric emissions, Atmospheric pollution |
| Texto completo: | Texto completo (Ver HTML) |
