Surface analyses of atmospheric aerosols from different continental sources, such as forest fires and coal and straw burning, show that organic surfactants are found on such aerosols. The predominant organic species detected by time-of-flight secondary ion mass spectrometry on the sulfate aerosols are fatty acids of different carbon chain length up to the C 32 acid. These observations are consistent with literature accounts of functional group analysis of bulk samples, but this is the first direct evidenc…
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