Fig. 4: Source apportionment and temporal dynamics of organic aerosol over speciated analysis period. | npj Climate and Atmospheric Science

Fig. 4: Source apportionment and temporal dynamics of organic aerosol over speciated analysis period.

From: Emerging drivers of urban aerosol increase global change vulnerability in a US megacity

Fig. 4

Aged biomass burning, cooking, and hydrocarbon OA estimates are based on PMF analysis, while biogenic OOA and VCP OOA estimates are based on tracer-based source apportionment of the PMF Ox OA factors. The inset pie chart indicates the average contributions of the different source groups. The grey pie sector represents the discrepancy between bulk observed and tracer-based apportioned Ox OA (the prediction residual).

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