Figure 2 | Scientific Reports

Figure 2

From: “APEC Blue”: Secondary Aerosol Reductions from Emission Controls in Beijing

Figure 2

Size distributions of primary and secondary aerosols.

(A) Average mass-weighted size distributions of SIA, SOA and POA before (15 October–3 November, N-APEC) and during APEC (3–12 November). The reduction ratio ((N-APEC–APEC)/N-APEC) is shown on the right axis. (B,C) show the size evolution of SIA, SOA and POA during Ep1 and APEC2 (see Fig. 1). Solid circles show the peak diameters from the log-normal fit of each size distribution.

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