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Fish Hatchery Noise Levels and Noise Reduction Techniques.
Journal of Agricultural Safety and Health
|September 17, 2015
Summary
Simple tank covers effectively reduce occupational noise in fish hatcheries. Covering tanks, especially with standpipes, significantly lowers decibel levels, improving the work environment with inexpensive solutions.
Area of Science:
- Aquaculture Engineering
- Occupational Health and Safety
- Acoustics
Background:
- Occupational noise exposure is a concern in aquaculture production facilities.
- High decibel levels can negatively impact worker health and safety.
- Existing noise reduction strategies in hatcheries are not widely documented.
Purpose of the Study:
- To quantify occupational noise levels in a production fish hatchery.
- To evaluate the effectiveness of two simple noise reduction techniques.
- To identify practical solutions for reducing noise in aquaculture environments.
Main Methods:
- Noise levels were measured in two rearing facilities under various operational conditions.
- The impact of covering open standpipes was assessed.
- The effect of partial tank covers on noise reduction was evaluated.
Main Results:
- Ambient noise reached over 73 dB in the tank room and 77.5 dB in the salmon building with water flowing.
- Covering open standpipes showed no significant noise reduction.
- Partial tank covers significantly reduced noise levels, with the greatest reduction when both tanks and standpipes were covered.
Conclusions:
- Occupational noise in fish hatcheries can be substantially reduced using simple, cost-effective methods.
- Partial tank covers are a viable and effective noise mitigation strategy.
- Implementing these techniques can improve the occupational health and safety of hatchery workers.
