What is occupational noise?
Occupational noise refers to unwanted or excessive sound levels in the workplace that can cause hearing loss and other health effects over time. Industries such as construction, manufacturing, mining, and transport often expose workers to hazardous noise levels that exceed safe exposure limits set by Australian workplace regulations.
Why Is Occupational Noise a Problem?
Prolonged exposure to high noise levels can cause:
· Noise-Induced Hearing Loss (NIHL) – permanent damage to hearing
· Tinnitus – ringing or buzzing in the ears
· Stress and fatigue – increased workplace accidents due to reduced concentration
· Communication difficulties – making it harder to hear warnings or instructions
What Are the Workplace Noise Limits in Australia?
According to Safe Work Australia, employers must ensure workers are not exposed to:
· An 8-hour average noise level above 85 dB(A) (equivalent to a busy road or a lawnmower)
· Peak noise levels exceeding 140 dB(C) (such as a gunshot or explosion)
Which Workplaces Are Most at Risk?
High-risk industries for occupational noise include:
· Construction – power tools, heavy machinery, demolition work
· Manufacturing – machinery, stamping presses, conveyor belts
· Mining & Quarrying – drilling, crushing, transport equipment
· Transport & Logistics – aircraft, rail operations, truck driving
· Entertainment & Hospitality – live music venues, nightclubs, stadiums
How Can Occupational Noise Be Controlled?
To prevent hearing damage, workplaces should:
· Eliminate noise hazards where possible (e.g., using quieter machinery)
· Use engineering controls (e.g., sound barriers, enclosures, vibration damping)
· Implement administrative controls (e.g., rotating shifts to limit exposure)
· Provide hearing protection (e.g., earplugs, earmuffs) where noise cannot be reduced
· Conduct regular noise monitoring and hearing tests to protect workers' health
Be sure to discuss your occupational hygiene concerns with a Confluence Environmental Occupational Hygienist