Noise Due to Firecracker Explosions

Abstract

During New Year's Eve and some festivals some people are subjected to a great number of firecracker explosions. The peak sound pressure levels, originating from the explosions, can cause annoyance, fire hazards, loss of hearing, serious personal injuries, and even deaths. The immission of a peak sound pressure level at a given location due to an individual firecracker depends mainly on its sound power, the distance from explosion, and the sound pressure distribution in the time and frequency domain. In this paper, some practical measurements have been taken over a New Year's Eve and the results were compared with other days. Special emphasis is given to statistical aspects and probability distribution function of peak sound pressure levels, originating from a great number of firecracker random explosions. Results have shown that the probability distribution closely follows the Rayleigh distribution, but when the number of explosions in unit time is high enough, it tends to a Gaussian (normal) distribution.

Keywords

firecrackers explosions impulse noise statistical distribution

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References

Smoorenburg

G. F.

Risk of noise-induced hearing loss with exposure to Chinese fire crackers. TNO Defence Research, Rijswijk 1992.

Raspet

Crocker

M. J.

Shock waves, blast waves, and sonic booms. Encyclopedia of Acoustics, 1997 (John Wiley amp; Sons, New York).

ISO 13474 Acoustics - impulse sound propagation for environmental noise assessment, 2001.

Ford

R. D.

Saunders

D. J.

Kerry

The acoustic pressure waveform from small unconfined charges of plastic explosive, J. Acoust. Soc. Am., 1993, 94 (7), 408–417.

Erdreich

A distribution based definition of impulse noise. J. Acoust. Soc. Am., 1986, 79 (4), 990–998.

Brüiel

P. V.

Do we measure damaging noise correctly. Technical Review, 1, 1976, 3–25.

Pekkarinen

Industrial impulse noise, crest factor and effect of earmuffs. Am. Ind. Hyg. Assoc. J., 1987, 48 (10), 861–866.

McRobert

Ward

W. D.

Damage-risk criteria: The trading relation between intensity and the number of reverberant impulses. J. Acoust. Soc. Am., 1973, 53, 1297–1300.

Eudina

Deelak

Prezelj

Noise immission from firecrackers. Proceedings of the Eleventh International Congress on Sound and Vibration, St Petersburg, ICSV11, 5–8 July 2004, Vol. 2, pp. 1291–1298.

10.

Taylor

The formation of a blast wave by a very intense explosion. Proc. Roy. Soc. A, 1950, 201 (1), 159–174 and (2), 175–185.

11.

Parker

S. P.

Fluid Mechanics Source Book, 1988 (McGraw-Hill, New York).

12.

Hamernik

R. P.

Hsueh

K. D.

Impulse noise, some definitions, physical acoustics and other considerations. JASA, 1991, 90 (1), 189–196.

13.

Lighthill

A century of shock wave dynamics: Fifth International Congress on Sound and Vibrations, Adelaide, 1997.

14.

A SI S2.20–1983 Estimating airblast characteristics for single point explosions in air, with a guide to evaluation of atmospheric propagation and effects. Acoustical Society of America, New York, 1983.

15.

Benjamin

J. R.

Cornell

C. A.

Probability, Statistics and Decision for Civil Engineers, 1970 (McGraw-Hill, New York).

16.

Rice

S. O.

Mathematical analysis of random noise. Bell Syst. Tech. J., 1944, 23 (3), 282–332.

17.

Rice

S. O.

Mathematical analysis of random noise. Bell Syst. Tech. J., 1945, 24 (1), 46–156.

18.

Broch

J. T.

Effects of spectrum non-linearites upon the peak distribution of random signals, Technical Review no 3, 1963, Bruel amp; Kjaer.

19.

Bell

L. H.

Bell

D. H.

Industrial Noise Control, Fundamentals and Applications, second edition, revised and expanded, Marcel Dekker, Inc., 1994.

20.

Rasch

Mathematische Statistik, 1995 (Johann Ambrosius Barth Verlag, Heidelberg).

21.

VDI 3723 Application of statistical methods for the description of variation in ambient noise levels Part 1, May 1993.

22.

VDI 3745 Assessment of shooting noise-Part 1, May 1993.

23.

Sharma

Mohanan

Singh

Characterisation of sound pressure levels produced by crackers. Appl. Acoustics, 1999, 58(December), 443–449.

24.

Deželak

Eudina

Statistical description of noise from firecrackers. Acta Acustica, 2004, 90 (3), 457–466.