Figures & data
FIG. 1 Observations of smoke particles during FLAME II open biomass burning experiments: (a) comparisons of the ratios of K+ (at m/z 38.964) and C2H4O+ 2 (at m/z 60.021) to total AMS particle mass for flaming and smoldering fire phases of individual FLAME II burns; (b) relationship of organic equivalent concentrations of C2H4O+ 2 from the AMS to the concentration of levoglucosan or the concentration sum of levoglucosan, mannosan, and galactosan measured from simultaneously collected filter samples (CitationSullivan et al. 2008); (c) a hypothetical computed AMS anhydrosugar-equivalent concentration (determined as 7.5 times AMS C2H4O+ 2) to levoglucosan + mannosan + galactosan concentrations measured in simultaneously collected filter samples; (d) AMS organic aerosol concentration vs. AMS C2H4O+ 2 organic equivalent concentration for individual FLAME II burns. The plotted points in each panel represent the average values measured, typically over several minutes of sampling. The orthogonal distance regression approach was used to compute best fit lines in panels (b)–(d).
![FIG. 1 Observations of smoke particles during FLAME II open biomass burning experiments: (a) comparisons of the ratios of K+ (at m/z 38.964) and C2H4O+ 2 (at m/z 60.021) to total AMS particle mass for flaming and smoldering fire phases of individual FLAME II burns; (b) relationship of organic equivalent concentrations of C2H4O+ 2 from the AMS to the concentration of levoglucosan or the concentration sum of levoglucosan, mannosan, and galactosan measured from simultaneously collected filter samples (CitationSullivan et al. 2008); (c) a hypothetical computed AMS anhydrosugar-equivalent concentration (determined as 7.5 times AMS C2H4O+ 2) to levoglucosan + mannosan + galactosan concentrations measured in simultaneously collected filter samples; (d) AMS organic aerosol concentration vs. AMS C2H4O+ 2 organic equivalent concentration for individual FLAME II burns. The plotted points in each panel represent the average values measured, typically over several minutes of sampling. The orthogonal distance regression approach was used to compute best fit lines in panels (b)–(d).](/cms/asset/481eb563-442e-4ea8-b973-9c80c00b5f70/uast_a_499884_o_f0001g.gif)