Elemental carbon concentrations: Estimation of an historical data base

Glen R. Cass, Martha H. Conklin, Jitendra J. Shah, James J. Huntzicker, Edward S. Macias

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

While recent advances in instrumentation permit routine determination of elemental carbon concentrations in atmospheric aerosol samples, historical data on elemental C concentrations are absent. Two methods are available for the estimation of an historical data base for elemental C concentrations: calibration of reflectance-based tape samplers and analysis of archived high volume sampler filters. These methods are described and applied to the problem of reconstructing an historical data base for elemental C concentrations in Los Angeles. Twenty-four year average elemental C concentrations at seven monitoring sites in the Los Angeles area are estimated to range from 6.4 μg m-3 at Downtown Los Angeles to 4.5 μg m-3 at West Los Angeles. At most monitoring sites studied, elemental C concentrations were lower in recent years than during the late 1950s and early 1960s.

Original languageEnglish (US)
Pages (from-to)153-162
Number of pages10
JournalAtmospheric Environment (1967)
Volume18
Issue number1
DOIs
StatePublished - 1984

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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