2007
DOI: 10.1021/es070384u
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Atmospheric Emission of Reactive Nitrogen during Biofuel Ethanol Production

Abstract: This paper evaluates emissions to the atmosphere of biologically available nitrogen compounds in a region characterized by intensive sugar cane biofuel ethanol production. Large emissions of NH3 and NOx, as well as particulate nitrate and ammonium, occur at the harvest when the crop is burned, with the amount of nitrogen released equivalent to approximately 35% of annual fertilizer-N application. Nitrogen oxides concentrations show a positive association with fire frequency, indicating that biomass burning is … Show more

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Cited by 33 publications
(24 citation statements)
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“…This knowledge has been updated in more recent studies, such as Christian et al [22] which is concerned with savanna fires, Yokelson et al [23,24] and Soares Neto et al [25,26] which assemble information about fire emissions in tropical vegetation associated with pasture maintenance and deforestation, based on laboratory experiments and field campaigns, and Akagi et al [27] which present emission factors, among other information, for fourteen types of vegetation. Although some studies have treated different aspects of sugarcane straw burning [28][29][30][31][32], specific information about emission factors for species emitted during pre-harvest burning is still scarce, especially specific to Brazil. It is common modeling practice to use the generic emission factors for savanna, pasture or agricultural wastes, such as those provided by Andreae and Merlet [21] and IPCC [33] for the estimation of emissions associated with sugarcane straw burning.…”
Section: Introductionmentioning
confidence: 99%
“…This knowledge has been updated in more recent studies, such as Christian et al [22] which is concerned with savanna fires, Yokelson et al [23,24] and Soares Neto et al [25,26] which assemble information about fire emissions in tropical vegetation associated with pasture maintenance and deforestation, based on laboratory experiments and field campaigns, and Akagi et al [27] which present emission factors, among other information, for fourteen types of vegetation. Although some studies have treated different aspects of sugarcane straw burning [28][29][30][31][32], specific information about emission factors for species emitted during pre-harvest burning is still scarce, especially specific to Brazil. It is common modeling practice to use the generic emission factors for savanna, pasture or agricultural wastes, such as those provided by Andreae and Merlet [21] and IPCC [33] for the estimation of emissions associated with sugarcane straw burning.…”
Section: Introductionmentioning
confidence: 99%
“…Dados coletados em região produtora de cana de açúcar mostram que cerca de 46 mil ton de nitrogênio/ano foram produzidos na colheita manual. 32 Os dados mostram que a produção de biocombustível mobiliza muito nitrogênio reativo para o ambiente.…”
Section: Ciclo Do Nitrogêniounclassified
“…7,8 Em ambiente aberto, esse gás, com raríssimas exceções, não atinge concentrações que possam provocar prejuízos à saúde. No entanto, seu controle é necessário uma vez que atua como fotocatalisador na produção do ozônio, 2,4,5 na formação do ácido nítrico atmosférico 9 e de aerossol atmosférico e pode interferir no ciclo biogeoquímico de macronutrientes. 10,11 O NO 2 é um poluente secundário formado na própria atmosfera a partir de reações de óxido nítrico com ozônio (Equação 1) ou com compostos formados em reações fotoquímicas (Equação 2).…”
Section: Introductionunclassified