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A.S.L. and Associates

CAPITA at Washington University,
St. Louis, Missouri

 University of East Anglia, UK


Under a grant from the U.S. Department of Energy, A.S.L. & Associates and its subcontractor, CAPITA at Washington University St. Louis, and consultant Dr. Peter Brimblecombe, University of East Anglia, Norwich, England, combined talents to develop a database that allows for the estimation of the global emissions of sulfur from 1850 to 1990. A common methodology was applied across all years and countries for the estimation of sulfur emissions. In all cases, the emission estimates for each country are based on the production, percent sulfur, and sulfur retention information associated with that country's activities. If data were available, such as United States emission estimates from the U.S. Environmental Protection Agency, the information was used only for purposes of comparison with the estimate results derived from this research effort.

In order to better understand how the data were collected and used, we suggest that you order the A.S.L. & Associates' report from the National Technical Information Service (NTIS) of the U.S. Department of Commerce. To purchase a copy of the peer-reviewed U.S. Department of Energy Report, please refer to it as NTIS Order Number DE96014790INZ. The NTIS sales desk staff is available between 0830 and 1700, U.S. eastern time at 703-487-4650. The mailing address is NTIS, 5285 Port Royal Road, Springfield, VA 22161. Fax orders can be made at 703-321-8547. To verify receipt of a fax, please call 703-487-4679. A paper summarizing our findings was published in Atmospheric Environment and the full citation is in our publication listing. If you use the data, please cite the source as

Lefohn A.S., Husar J.D., and Husar R.B. (1999). Estimating Historical Anthropogenic Global Sulfur Emission Patterns for the Period 1850-1990. Atmospheric Environment. 33(21):3435-3444.

  Download Global Sulfur Emissions Database-Text File (Numbers should be multiplied by 1000 metric tons S).
  Download Background Information on the Database - WORD 6.0 Format
  Download Background Information on the Database - WordPerfect 5.1 Format
  The sulfur content in hard coal, brown coal, and crude oil used in the study. - WORD97 Format
  The sulfur content in hard coal, brown coal, and crude oil used in the study. - WordPerfect 5.1 Format

For further information, please contact us at

A.S.L. & Associates, LLC
P.O. Box 196
Clancy, Montana 59634

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