Organic matter of the troposphere—IV. Lipids in harmattan aerosols of nigeria
作者： Bernd R.T. Simoneit , R.E. Cox , L.J. Standley
DOI: 10.1016/0004-6981(88)90276-4
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摘要: Harmattan aerosols were sampled during the 1979 and 1980 seasons in urban, rural remote areas of Nigeria, order to characterize sources continental carbonaceous particulate matter. High volume air samples (400–3600 m3) obtained. The sample filters extracted soluble lipids separated into functional group fractions for molecular analyses. These composed primarily vascular plant wax minor amounts microbial detritus, with a significant anthropogenic component from petroleum products burning superimposed under urban influence.
Plant was characterized by homologous series mainly n-alkanes n-alkanols, n-alkanoic acids, n-alkan-2-ones biomarkers, all higher weight range (> C20). Alcohol contained characteristic phytosterols (C27–C29) triterpenols (C30 > C29), which are biomarkers vegetation sources. signatures northern Nigeria could be correlated two dominant geographic source regions (e.g. Sahara). A lipid evident hydrocarbon (as unresolved complex mixture, UCM) fatty acid (< Its origin inferred erosion lacustrine detritus viable microbiota ambient particles.
Petroleum residues traces pyrogenic polynuclear aromatic hydrocarbons (PAH) present HC some influence. components comprised (
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