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June 29, 1957

RADIOACTIVE FALL-OUT OVER CITY

JAMA. 1957;164(9):1010. doi:10.1001/jama.1957.02980090064018

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Abstract

To the Editor:—  Lester Machta, chief of the special projects section, office of meteorological research, U. S. Weather Bureau (The Journal, May 18, page 324), disagrees with some of our suggestions regarding a possible relationship of the mechanism of the fall-out of pollens and molds to the fall-out of radioactive particles (Effect of a City on the Fall-out of Pollens and Molds, The Journal, March 9, page 803). Although we do not question his ability as a meteorologist, we feel it our duty to call attention to some erroneous suppositions. First of all we quote from Machta, "However, since the city is not a source of spores and molds, it is difficult to distinguish between their explanation and a simple decrease in concentration farther from the source." We must emphasize that the pollens and molds that are responsible for allergic reactions to city dwellers may have started their journeys through

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