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- W2146627339 abstract "Millions of workers are exposed to occupational noise that increases their risk of hearing impairment and evidence on the effectiveness of precaution is lacking. This study was undertaken to assess the effect of noise control strategy in a cigarette factory in China. We chose the representative points in the unit, monitored the noise level and analyzed frequency spectrum at the same workplace before and after sound absorbing panels installation on the ceiling and walls. Results showed that the sound pressure levels were dropped from 81.3 dB(A) to 74.8 dB(A) and reduced by 6.5 dB(A) on average. Installation of the panels had a dramatic effect. From the frequency spectrum analysis, the noise was broadband and evenly disturbed. The frequency (1000, 2000Hz) noise was sharply attenuated, which was in consistent with materials’ characteristics. We eagerly recommend it as a successful example in other cigarette factories.Key words: Sound absorbing panel, noise control, evaluation, cigarette factory." @default.
- W2146627339 created "2016-06-24" @default.
- W2146627339 creator A5023570134 @default.
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- W2146627339 date "2013-12-12" @default.
- W2146627339 modified "2023-09-28" @default.
- W2146627339 title "Evaluation of noise reduction in a cigarette factory, China" @default.
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- W2146627339 doi "https://doi.org/10.5897/ijps2013.4059" @default.
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