CO₂, CH₄ and Particles Flux Measurements in Florence, Italy

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• 作者：Beniamino Gioli ; Piero Toscano ; Aless ; ro Zaldei ; Gerardo Fratini ; Franco Miglietta
• 关键词：eddy covariance ; CH4 flux measurements ; particles flux measurements
• 刊名：Energy Procedia
• 出版年：2013
• 出版时间：2013
• 年：2013
• 卷：40
• 期：Complete
• 页码：537-544
• 全文大小：967 K

文摘

Eddy covariance (EC) flux measurements of CO₂, CH₄ and particles in densely urbanized area in Florence are reported, and partitioned into emission categories. CO₂ fluxes are a net source to the atmosphere, with small inter-annual variability and high seasonality. CH₄ fluxes represent about 8 % of CO₂-equivalent emissions, and do not exhibit significant seasonality. Heating and road traffic account for 68 % and 32 % of observed CO₂ emissions, respectively, and for 14 % of CH₄ emissions, while gas network leakages are responsible for the residual. Particle fluxes exhibit a pronounced weekend decrease, highlighting that the main contribution to emissions comes from road traffic.