Archives of Acoustics, 10, 3, pp. 241-252, 1985

The effect of sound absorption by the air on noise propagation

K. Berezowska-Apolinarska
Environment Research and Control Centre
Poland

J. Jarzęcki
Institute of Acoustics, Adam Mickiewicz University
Poland

R. Makarewicz
Institute of Acoustics, Adam Mickiewicz University
Poland

In this paper, the relationship between the sound level (measured in dB (A)) and the distance was derived on the assumption that air absorption is the only essential factor affecting noise propagation. It was shown that at a great distance from the source "rapid sound level drop", exceeding 6 dB (A), occurs when the distance is doubled.
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