Levoglucosan was present in all samples and its concentrations showed a pronounced annual cycle with maximum levels in the cold season. The annual percentage of ratios of levoglucosan to OC ranged from 0.04 to 9.75% evidencing a major contribution of biomass burning to the aerosol OC during the winter. In the urban-background site, OC was strongly correlated with EC in winter, suggesting that the major fraction of OC was generated as primary particles along with EC. A background levoglucosan component showed that biomass burning was continuously taking place in all the investigated sites. The biomass burning contribution to the Tuscany aerosol was made up of a background component and an additional component during winter probably due to wood burning for domestic heating.
|Titolo:||The use of levoglucosan for tracing biomass burning in PM2.5 samples in Tuscany (Italy)|
|Data di pubblicazione:||2012|
|Appare nelle tipologie:||2.1 Articolo su rivista |
File in questo prodotto:
|Environmnetal Pollution 2012, levoglucosan Toscana.pdf||Post-print||Licenza non definita||Riservato|