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. 2019 Oct 30;5(11):1760–1767. doi: 10.1021/acscentsci.9b00541

Figure 2.

Figure 2

Organic coatings observed on wintertime sea spray aerosol (SSA) particles. (a) SEM image with a 3 μm scale bar shown and (b) EDX spectra of a representative SSA particle with a cubic salt core (blue) and organic coating (green). *Al and Si signal contributions are from the sampler holder and substrate, respectively. (c) Average relative elemental (mole) fractions for all 773 submicron and 918 supermicron nascent SSA particles (CCSEM-EDX). (d) Representative STXM-NEXAFS image showing organic volume fraction spatial distribution within individual SSA particles, with a 5 μm scale bar shown. (e) Histogram of 150 individual SSA particle organic volume fractions (STXM-NEXAFS).