Transcription of 10 ENGINEERING NOISE CONTROL - WHO
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10 ENGINEERING NOISE CONTROL - WHO
10. ENGINEERING NOISE CONTROL . Professor Colin H. Hansen Dr Berenice Goelzer*. Department of Mechanical ENGINEERING World Health Organization University of Adelaide South Australia 5005. AUSTRALIA. INTRODUCTION. As with any occupational hazard, CONTROL technology should aim at reducing NOISE to acceptable levels by action on the work environment. Such action involves the implementation of any measure that will reduce NOISE being generated, and/or will reduce the NOISE transmission through the air or through the structure of the workplace. Such measures include modifications of the machinery, the workplace operations, and the layout of the workroom. In fact, the best approach for NOISE hazard CONTROL in the work environment, is to eliminate or reduce the hazard at its source of generation, either by direct action on the source or by its confinement.
Normally the noise control program will be started using as a basis A-weighted immission or noise exposure levels for which the standard ISO 11690-1 recommends target values and the principles of noise control planning. A more precise way is to use immission and emission values in frequency bands as follows.
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