ATMOSPHERIC POLLUTION — FRENKIEL 299 



a number of years. This discussion may or may not apply to Los 

 Angeles County, but it is presented at this time to indicate the need 

 for including in city planning an air-zoning and atmospheric-pollu- 

 tion control study. Although one should expect that the future will 

 bring many practical solutions to atmospheric pollution control, such 

 expectations cannot be included in a serious planning of urban develop- 

 ment. 



ACKNOWLEDGMENTS 



The author is indebted to O. J. Deters for his help in many phases of 

 the preparation of this manuscript. He wishes to express his apprecia- 

 tion to Betty Grisamore for her assistance in the numerical computa- 

 tions and to Doris Rubenfeld for the preparation of the figures. 



REFERENCES 



1. Great BritaLn, Ministry of Health, Reports on Public Health and Medical 



Subjects No. 95. Mortality and morbidity during the London fog of Decem- 

 ber 1952. Her Majesty's Stationery Office, London, 1954. 



2. Great Britain, Committee on Air Pollution, Interim Report (presented to 



Parliament by the Minister of Housing and Local Government, the Secre- 

 tary of State for Scotland and the Minister of Fuel and Power). Her 

 Majesty's Stationery Office, London, 1953. 



3. Many of these methods are reported in the Proceedings of the United States 



Technical Conference on Air Pollution, L. C. McCabe, editor, New York, 

 1952, as well as in the general technical literature. 



4. F. N. Frenkiel, Advances in applied mechanics, vol. 3, p. 61, 1953. (See also 



the several references given in this paper.) 



5. H. F. Poppendiek, J. G. Edinger, M. L. Greenfield, W. J. Hamming, and L. H. 



McEwen, A report on an atmospheric pollution investigation in the Los 

 Angeles Basin, University of California, Departments of Engineering and 

 Meteorology, Los Angeles, 194S ; also M. Neiburger and J. G. Edinger, Air 

 Pollution Foundation, Report No. 1, April 1954. 



6. G. P. Larson, J. C. Chipman, and E. K. Kauper, SAE Transactions, vol. 63, 



p. 567, 1955. 



7. W. L. Faith, Chemical Engineering Progress, vol. 51, p. 101-F, 1955; also 



Air Pollution Foundation, Report No. 4, 1955. 



8. A. J. Haagen-Smit, Industrial and Engineering Chemistry, vol. 44, p. 1342, 



1952. 



9. F. E. Blacet, Industrial and Engineering Chemistry, vol. 44, p. 1339, 1952. 



10. A. J. Haagen-Smit and M. M. Fox, SAE Transactions, vol. 63, p. 575, 1955. 



11. E. R. Stephens, P. L. Hanst, R. C. Doerr, and W. E. Scott, Industr. and Eng. 



Chem., vol 48, p. 1498, 1956. 



12. W. L. Faith, Air Pollution Foundation, Report No. 2, 1954. 



13. E. Marden and G. Hawkins (managers of a National Bureau of Standards 



project), NBS Applied Mathematics Division, Quarterly Report, July 

 through September 1954, p. 3. 



14. F. N. Frenkiel. Journal of Meteorology, vol. 8, p. 316 (see introduction), 



1951 ; also Journal of the Washington Academy of Sciences, vol. 46, p. 206, 

 1956. 



