Figure 5
From: Large unexplained suite of chemically reactive compounds present in ambient air due to biomass fires
Linear regression lines showing correlation of the increased OH reactivity between CFI and NCFI periods with the absolute concentration increases between CFI and NCFI periods of (a) hydroxyacetone, (b) nitromethane, (c) Sum of formamide and C-2 amines, (d) Sum of acetamide and trimethylamine, (e) acetone and (f) acetonitrile (biomass burning tracer). The individual points in the different panels were obtained by calculating the differences between CFI and NCFI periods using the average diel profile data for measured OH reactivity shown in Fig. 2 and hydroxyacetone, nitromethane, acetone and acetonitrile shown in Fig. 4 and Sum of formamide and C-2 amines (m/z 46), Sum of acetamide and trimethylamine (m/z 60) shown in Supplementary Fig. 4.
