Industrial noise level study in a wheat processing factory in ilorin, nigeria

Ibrahim, I. A.; Ajao, K.R.; Aremu, Suleiman Ahmed

doi:10.1515/ijame-2016-0030

Cited by 3 publications

(3 citation statements)

References 5 publications

(7 reference statements)

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“…These results are in accordance with the results obtained from the study. Highest noise levels in a wheat processing factory in Nigeria was 99.4 dB(A) (Ibrahim et al, 2016) which was in agreement with the results obtained in the study where two machines were operating at a distance of 50 cm. Boateng and Amedofu (2004) reported noise levels in corn mills to exceed the limiting value of 85 dB(A) as recommended by NESREA.…”

Section: Number Of Flour Millssupporting

confidence: 89%

Flour Mill Workers Occupational Noise Exposure in Chandrapur City, Central India

Nimgade¹,

Kamble²

2018

Int. J. Environ.

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Assessment of occupational noise exposure of flour mill workers in Chandrapur city of central India was carried out during November 2015-January 2016. Total 62 flour mills were selected for this study comprising one, two and three grinding machines operating in the shop floor. The sound level meter was used to measure sound level at 50 cm and 3 meters from grinding machines at receiver’s position during operation. Noise monitoring was also recorded when one, two and three machines were operating individually and simultaneously. The results showed that noise levels when one grinding machine in operation in close proximity (50 cm) was in the range of 80-97 dB(A). Comparison of these observations with that of 3 meters distance; it was observed that noise levels got reduced and in the range of 70-77 dB(A). In the case of two machines in operation, it was in the range of 95-118 dB(A) at 50 cm distance and reduced to 75-95 dB(A) at 3 meters distance. This reduction in noise level was due to the propagation of noise in the ambient environment. Furthermore, daily noise exposure points, exposure points job per task and exposure points per hour were computed by using noise exposure calculator developed by Health and Safety Executive (HSE), United Kingdom. The computation from this calculator revealed that these attributes were directly depended upon noise levels in flour mills and duration of noise exposure. A positive linear Pearson’s correlation (p<0.01) was observed between noise level and exposure points per hour. Of the 65 flour mill workers surveyed, 70.76% reported a hearing problem, 23.07% headache at work and out of which 7.69% workers headache remains after completion of work also. Remedial measures to control noise exposure to flour mill workers such as ear plugs, ear muff, semi-insert are recommended.

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Section: Number Of Flour Millssupporting

confidence: 89%

Flour Mill Workers Occupational Noise Exposure in Chandrapur City, Central India

Nimgade¹,

Kamble²

2018

Int. J. Environ.

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“…In recent decades, noise pollution has emerged as one of the most significant environmental problems due to rapid urbanization and fast expansion of industrial operations. [1][2][3] Industrial noise is one of the most annoying and tiring factors in working environments, be it in factory, workshop, academic or research setup. [4][5][6][7][8][9] Studies have revealed that noise of factories/workshops account for about 80% noise pollutants.…”

Section: Introductionmentioning

confidence: 99%

Status and noise reduction analysis of robotics lab in an academic institute by using acoustic materials

Singh

Deswal

2023

Noise & Vibration Worldwide

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In recent decades, noise has emerged as one of the most annoying and tiring factors in working environments, be it in factory, workshop, academic or research setup. This paper presents the noise status and noise reduction analysis of Robotics lab in an academic institute. The average equivalent continuous noise level ([Formula: see text]) inside the Robotics lab (64.90–75.99 dB) was within or close to permissible limits of 75 dB as per Indian standards for industrial environment; but the operation of Mig and Spot welding were a source of noise nuisance to the adjoining academic area due to the sound transmission from the Robotics lab. The noise reduction analysis in the study demonstrated the usage of acoustics (glass, curtain, cardboard and thermocol) in windows as sound barriers that dampens the transmission of indoor noise. The Sound Transmission Loss (STL) was observed to be highest in the range of 18.12–22.62 dB (28.88–29.59%) by using the combination of glass and curtain as acoustic barrier in windows of the Robotics lab; thereby, reducing noise nuisance significantly in the academic area. The study revealed the necessity of effective acoustic barrier in labs/workshops under-industrial conditions in academic institutes and proposed a model for predicting STL for the combination of glass and curtain from [Formula: see text] value.

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“…The result of the study revealed the average noise level produced by the machines to be 99.4 dBA which was beyond human standard of hearing. It was further recommended that room acoustics should be upgraded for workers to absorb sound transmitted to offices" [9]. Christopher et al [5] assessed traffic noise pollution and a survey on residents' health at Alimosho local government Lagos, Nigeria.…”

Section: Introducutionmentioning

confidence: 99%

Noise Level Evaluation at Major Markets in Calabar, Nigeria

Ekah,

Akwagiobe,

Uda

et al. 2023

PSIJ

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The aim of this study was to determine the prevailing noise levels at major markets in Calabar, Nigeria. Data was collected by measuring noise levels in three different markets using RS232 digital sound level meter with measuring range of 32- 80 dB for low range, 50 – 100 dB for medium range and 80-130dB for high range and the analysis was done using OriginPro software. The results obtained were compared with the World Health Organization regulatory standard and it showed that the average daily noise level value produced at Watt and Marian markets were 73.0 dB and 71.5 dB individually, which were beyond the safe limit recommended by the World Health Organization (WHO) for commercial areas while the daily average noise level produced at Goldie market was moderate and within the safe limit.

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Industrial noise level study in a wheat processing factory in ilorin, nigeria

Cited by 3 publications

References 5 publications

Flour Mill Workers Occupational Noise Exposure in Chandrapur City, Central India

Flour Mill Workers Occupational Noise Exposure in Chandrapur City, Central India

Status and noise reduction analysis of robotics lab in an academic institute by using acoustic materials

Noise Level Evaluation at Major Markets in Calabar, Nigeria

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