References
- Pilat , M. J. , Ensor , D. S. and Bosch , J. C. 1970 . Atmos. Environ. , 4 : 671
- Zoller , W. H. and Gordon , G. E. 1970 . Anal. Chem. , 42 : 257 N. K. Aras, W. H. Zoller, G. E. Gordon, G. J. Lutz, ibid. 45, 1481 (1973) I. Olmez, N. K. Aras, G. E. Gordon, W. H. Zoller, ibid. 46, 935 (1974), E. S. Gladney, Ph.D. Thesis, University of Maryland, 1974.
- Rook , H. L. , Gills , T. E. and LaFleur , P. D. 1972 . Anal. Chem. , 44 : 1114
- Zoller , W. H. , Gladney , E. S. and Duce , R. A. 1974 . Science , 183 : 198
- Gordon , G. E. , Zoller , W. H. and Gladney , E. S. 1974 . Trace Substances in Environmental Health‐VII , Edited by: Hemphill , D. D. 167 – 174 . Columbia : Univ. of Missouri .
- Wedepohl , K. H. 1968 . Origin and Distribution of the Elements , Edited by: Ahrens , L. H. 999 – 1016 . London : Pergamon Press .
- Data for Boston, Washington, Chicago area, Buffalo, New York and St. Louis from our own compilation of data from many original sources. Note that we have avoided inclusion of western cities such as Los Angeles and San Francisco, in which little if any coal is consumed.
- D. H. Klein, A. W. Andren, J. A. Carter, J. F. Emery, C. Feldman, W. Fulkerson, W. S. Lyon, Y. A. Talmi, R. I. VanHook, N. E. Bolton, submitted to Science
- J. Kaakinen, Ph.D. Thesis, University of Colorado, 1974.
- Natusch , D. F. S. , Wallace , J. R. and Evans , C. E. Jr. 1974 . Science , 183 : 202
- Cavender , J. H. , Kirchner , D. S. and Hoffman , A. J. Jan. 1973 . Nationwide Air Pollutant Emission Trends 1940–1970 , U.S. Env. Protection Agency Report AP‐115 Jan. ,
- Zoller , W. H. , Gordon , G. E. , Gladney , E. S. and Jones , A. G. 1973 . Trace Elements in the Environment , Adv. in Chem. Series No. 123 Edited by: Kothny , E. L. 31 – 47 . Washington : Amer. Chem. Soc. .
- R. R. Greenberg, W.H. Zoller, G. E. Gordon, submitted to Science
- Hoffman , G. L. and Duce , R. A. 1971 . Environ. Sci. and Tech. , 5 : 1134
- Davis , D. D. , Smith , G. and Kuluber , G. 1974 . Science , 186 : 733