BTEX Emissions from the Largest Landfill in Operation in Rio de Janeiro, Brazil.
Bull Environ Contam Toxicol
; 98(5): 624-631, 2017 May.
Article
em En
| MEDLINE
| ID: mdl-28255609
The emission rates and the ambient air concentrations of benzene, toluene, ethyl benzene and xylenes (BTEX) were measured over the intermediate cover layer and atmosphere of the Seropédica landfill, Rio de Janeiro, Brazil. BTEX were sampled using coconut shell charcoal cartridges, followed by extraction with dichloromethane and analysis by gas chromatography with mass spectrometry. Thirteen samples were collected in areas with and without cracks in the cover layer, and six samples were collected from the ambient air. The average emission rates were 11.7, 492.2, 153.7, 67.2, and 21.7 µg m- 2 day- 1, respectively, for benzene, toluene, ethyl benzene, m + p-xylenes and o-xylene. No benzene concentrations above the detection limit were observed in ambient air samples. The average concentrations of toluene, ethyl benzene, m + p-xylenes and o-xylene in ambient air samples were 2.14, 1.35, 0.49 and 0.08 µg m- 3, respectively. Higher emissions were found in locations containing larger cracks during the collection.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Atmosfera
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Solo
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Tolueno
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Xilenos
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Benzeno
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Derivados de Benzeno
País/Região como assunto:
America do sul
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Brasil
Idioma:
En
Revista:
Bull Environ Contam Toxicol
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos