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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Pre-Harvest Sugarcane Burning: Determination of Emission Factors through Laboratory Measurements

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Autor(es):
Franca, Daniela de Azeredo [1] ; Longo, Karla Maria [2] ; Soares Neto, Turibio Gomes [3] ; Santos, Jose Carlos [3] ; Freitas, Saulo R. [4] ; Rudorff, Bernardo F. T. [1] ; Cortez, Ely Vieira [3] ; Anselmo, Edson [3] ; Carvalho, Jr., Joao Andrade [5]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] Natl Inst Space Res INPE, DSR, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[2] Natl Inst Space Res INPE, Earth Syst Sci Ctr CCST, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[3] Natl Inst Space Res INPE, Combust & Prop Associated Lab LCP, BR-12630000 Cachoeira Paulista, SP - Brazil
[4] Natl Inst Space Res INPE, Ctr Weather Forecasting & Climate Studies CPTEC, BR-12630000 Cachoeira Paulista, SP - Brazil
[5] Sao Paulo State Univ UNESP, Dept Energy, BR-12516410 Guaratingueta, SP - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: ATMOSPHERE; v. 3, n. 1, p. 164-180, MAR 2012.
Citações Web of Science: 29
Resumo

Sugarcane is an important crop for the Brazilian economy and roughly 50% of its production is used to produce ethanol. However, the common practice of pre-harvest burning of sugarcane straw emits particulate material, greenhouse gases, and tropospheric ozone precursors to the atmosphere. Even with policies to eliminate the practice of pre-harvest sugarcane burning in the near future, there is still significant environmental damage. Thus, the generation of reliable inventories of emissions due to this activity is crucial in order to assess their environmental impact. Nevertheless, the official Brazilian emissions inventory does not presently include the contribution from pre-harvest sugarcane burning. In this context, this work aims to determine sugarcane straw burning emission factors for some trace gases and particulate material smaller than 2.5 mu m in the laboratory. Excess mixing ratios for CO2, CO, NOX, UHC (unburned hydrocarbons), and PM2.5 were measured, allowing the estimation of their respective emission factors. Average estimated values for emission factors (g kg(-1) of burned dry biomass) were 1,303 +/- 218 for CO2, 65 +/- 14 for CO, 1.5 +/- 0.4 for NOX, 16 +/- 6 for UHC, and 2.6 +/- 1.6 for PM2.5. These emission factors can be used to generate more realistic emission inventories and therefore improve the results of air quality models. (AU)

Processo FAPESP: 08/56252-0 - Environmental and socioeconomic impacts associated with the production and consumption of sugarcane ethanol in south central Brazil
Beneficiário:Evlyn Márcia Leão de Moraes Novo
Linha de fomento: Auxílio à Pesquisa - Programa BIOEN - Temático
Processo FAPESP: 08/04490-4 - Combustão de biomassa de florestas tropicais
Beneficiário:João Andrade de Carvalho Junior
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 02/08964-4 - Concentrações das espécies químicas liberadas durante a combustão de biomassa da Floresta Amazônica
Beneficiário:João Andrade de Carvalho Junior
Linha de fomento: Auxílio à Pesquisa - Regular