Ambient concentrations and insights on organic and elemental carbon dynamics in São Paulo, Brazil
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- 作者：Djacinto A. Monteiro dos Santosa ; djunior@if.usp.br" class="auth_mail" title="E-mail the corresponding author ; Joel F. Britoa ; 1 ; José ; Marcus Godoyb ; Paulo Artaxoa
- 关键词：Carbonaceous aerosol ; Megacity ; Urban air pollution
- 刊名：Atmospheric Environment
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：144
- 期：Complete
- 页码：226-233
- 全文大小：1288 K
文摘
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Carbonaceous particles dominate PM2.5 concentrations in São Paulo.
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Campaign averaged OC:EC ratio for the sampling sites ranged from 0.56 to 1.89.
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Contribution of secondary OC was estimated around 30–40% for all sites.
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The OC3 and OC4 fractions depict a more regional behavior across sampling sites.
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The OC1 fraction is identified to be more dependent of local sources.