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Elemental carbon concentrations: Estimation of an historical data base

Cass, Glen R. and Conklin, Martha H. and Shah, Jitendra J. and Huntzicker, James J. and Macias, Edward S. (1984) Elemental carbon concentrations: Estimation of an historical data base. Atmospheric Environment Part A-General Topics, 18 (1). pp. 153-162. ISSN 0960-1686. doi:10.1016/0004-6981(84)90238-5.

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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.

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Additional Information:© 1984 Pergamon Press. First received 16 November 1982; in revised form 23 May 1983 and for publication 7 July 1983. This work has benefited from research supported by the California Air Resources Board (Agreement Al-071-32), the U.S. Department of Energy (Grant No. EY-76-G-03-1305) and by the U.S. Environmental Protection Agency (Grant Nos. R806005 and R806274). We thank R. L. Johnson and E. K. Heyerdahl for their assistance in the Oregon Graduate Center carbon analysis and L.-C. Chu for assistance at Washington University.
Group:Environmental Quality Laboratory
Funding AgencyGrant Number
California Air Resources BoardAl-071-32
Department of Energy (DOE)EY-76-G-03-1305
Environmental Protection Agency (EPA)R806005
Environmental Protection Agency (EPA)R806274
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Other Numbering System NameOther Numbering System ID
Environmental Quality LaboratoryA-126
Issue or Number:1
Record Number:CaltechAUTHORS:20140922-083825077
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Official Citation:Glen R. Cass, Martha H. Conklin, Jitendra J. Shah, James J. Huntzicker, Edward S. Macias, Elemental carbon concentrations: Estimation of an historical data base, Atmospheric Environment (1967), Volume 18, Issue 1, 1984, Pages 153-162, ISSN 0004-6981, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49885
Deposited On:22 Sep 2014 20:27
Last Modified:10 Nov 2021 18:49

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