References (continued)
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17.

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R. Spirtas

and H. J.

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National Air Pollution Control Administration, Raleigh, N. C., Publication

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19.

L. J. Hagen

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20.

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,

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21. R. F. Pueschel, B. A. Bodhaine, and B. G. Mendonca, "The Proportion of .Volatile Aerosols on the Island of Hawaii," J. Appl. Meteorol. 12, 308 (1973).

22. H. J. Simpson, "Aerosol Cations at Mauna Loa Observatory," J. Geophys. Res.
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24,

J. T. Middleton, Chairman, National Air Quality Criteria Advisory Committee,
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25.

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26.

.

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