Risk Assessment of Noise Pollution in a Cement Plant: Perspectives and Recommendations

Abstract

Introduction: noise is an acoustic phenomenon producing an auditory sensation considered unpleasant or annoying.Exposure to high sound levels over 85 dB(A) can affect the auditory system and other extra-auditory systems  Our study had the general objective of evaluating the impact of noise related to noise exposure in the Lafarge Holcim Guinea factory.

Material and methods: This was a prospective descriptive study lasting 6 months from March 01, 2022 to September 01, 2022. It focused on the 150 workers at the Lafarge Holcim Guinea plant and their work areas.

Results: during our study, we recorded 131 workers who met our selection criteria. Our study population was young with an average age of 40.7 years with extremes of 26-53 years. About the measurement 3 areas out of 10 had a noise level above 85 dB(A). The most frequent signs felt during or after work were whistling/buzzing with 55%. Only 48.1% regularly used this PPE and caps were the most used PPE.

Conclusion: at the end of this study, it appears that the workers are mainly exposed to noise and have hearing problems. Despite the availability of PPE, many workers do not use it; however, better communication on the risks associated with noise pollution and the establishment of regular supervision of the correct wearing of PPE would improve the protection and safety of workers.