(6) Coles, D. G.; Ragaini, R. C.; Ondov, J. M.; Fisher, G. L.; Silberman, D.; Prentice, B. A. Enuiron. Sci. Technol. 1979,13,455. ( 7 ) Fisher, G. L.; Prentice, B. A.; Silberman, D.; Ondov, J. M.; Ragaini, R. C.; Biermann, A. H.; McFarland, A. R.; Pawley, J. B. “SizeDependence of the Physical and Chemical Properties of Coal Fly Ash”. In Proceedings of the Division of Fuel Chemisty Symposium on Properties of Coal Ash, 2nd Joint Chemical Institute of CanadalAmerican Chemical Society Meeting, Montreal, Canada, May 1977 (reprints available from G. L. Fisher). (8) Silberman, D.; Fisher, G. L. Anal. Chim. Acta 1979,106,299. (9) McFarland, A. R.; Bertch, R. W.; Fisher, G. L.; Prentice, B. A. Enuiron. Sci. Technol. 1977,11,781. (10) Fisher, G. L.; Prentice, B. A.; Silberman, D.; Ondov, J. M.; Bierman, A. H.; Ragaini, R. C.; McFarland, A. R. Enuiron. Sci. Technol. 1978,12,447. (11) Hansen, L. D.; Fisher, G. L. Enuiron. Sci. Technol. 1978,14, 1111. (12) Hulett, L. D.; Weinberger, A. J.;Ferguson, N. M.; Northcutt, K. J.; Lyon, W. S. “Chemical Speciation Studies of Fly Ash”; Final Report to the Electric Power Research Institute, July 1979, Part 1,Section 1.4.1. (13) Wilson, A. D. Analyst (London)1960,85,823-7.
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Received for review June 6,1980. Accepted M a y 8,1981. This work was supported by the Department of Energy.
Oxidation State of Arsenic in Coal Ash Leachate Ralph R. Turner Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
Pond effluents from 12 coal ash disposal systems contained variable quantities of total dissolved arsenic (
