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Research and Development of High-performance Explosives
Published on: February 20, 2016
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Exposure to impulse noise at an explosives company: a case study
Aleksandra Kulik1, Jolanta Malinowska-Borowska1
1a School of Public Health in Bytom , Medical University of Silesia , Poland.
International Journal of Occupational Safety and Ergonomics : JOSE
|January 23, 2018
Summary
Occupational exposure to impulse noise from dynamite detonation exceeded limits in blast areas, posing hearing risks. This noise also caused work difficulties and symptoms like headaches in 62% of employees.
Area of Science:
- Occupational health and safety
- Acoustics
- Industrial hygiene
Background:
- Workplace impulse noise poses a significant threat to hearing.
- Explosives companies generate high-intensity impulse noise during operations.
- Understanding noise exposure levels is crucial for worker protection.
Purpose of the Study:
- To assess occupational exposure to impulse noise from dynamite detonations.
- To measure noise levels at various locations within an explosives company.
- To evaluate the impact of impulse noise on workers' health and work performance.
Main Methods:
- Noise measurements were conducted at nine points across an explosives company site, including blast test areas and work buildings.
- 130 blast tests were monitored, recording A-weighted equivalent sound pressure level (LAeq), maximum A-weighted sound pressure level (LAmax), and C-weighted peak sound pressure level (LCpeak).
- Worker-reported symptoms and work difficulties associated with noise exposure were surveyed.
Main Results:
- Noise levels in the blast test area surpassed occupational exposure limits (OELs).
- Noise levels within work buildings remained below OELs.
- 62% of surveyed employees reported that impulse noise created difficulties in performing their work.
Conclusions:
- Impulse noise from dynamite detonation presents a significant occupational hazard in specific areas of explosives companies.
- While noise in work buildings may not exceed OELs, the impact on worker well-being and performance is notable.
- Further research into hearing protection and noise mitigation strategies is warranted for high-risk zones.
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