Figure 5 | Scientific Reports

Figure 5

From: Molecular distributions and compound-specific stable carbon isotopic compositions of lipids in wintertime aerosols from Beijing

Figure 5

Comparison of the averaged δ13C ranges of (a) n-alkanes and (b) fatty acids between terrestrial higher plants, anthropogenic sources (such as vehicle exhaust and coal combustion) and urban aerosols from Beijing. The δ13C data of carbon sources of n-alkanes were reported for higher plants26,49,50, crude oil54,55, vehicle exhaust56, Tokyo46. The δ13C data of fatty acids were reported for higher plants26,49,50, Hokkaido57 and Chichi-Jima Island26.

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