Soot in Urban Atmospheres: Determination by an Optical Absorption Technique

@article{Rosen1980SootIU,
  title={Soot in Urban Atmospheres: Determination by an Optical Absorption Technique},
  author={H. Rosen and A. Hansen and R. Dod and T. Novakov},
  journal={Science},
  year={1980},
  volume={208},
  pages={741 - 744}
}
We have used the high optical absorptivity of urban and source particulates to trace their "graphitic" component. The optical absorptivity and the particulate carbon loading show a strong correlation. Analyses of the data indicate that primary soot emissions compose a major fraction of the carbonaceous aerosol and put a low limit on secondary organic material produced in correlation with the ozone concentration. 
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