Occupational audiology focuses on preventing, identifying and managing hearing problems resulting from workplace noise exposure. Noise-induced hearing loss is permanent but preventable, making early evaluation essential. 

What Is Noise-induced Hearing Loss?

Noise-induced hearing loss (NIHL) occurs when loud or prolonged sounds damage sensory cells in the inner ear. It is one of the most common occupational health conditions worldwide. 

NIHL can result from sound levels at or above 85 decibels over an eight-hour workday, the recommended exposure limit set by NIOSH. Workers often notice early symptoms such as muffled hearing, ringing in the ears or the need to increase device volume after a shift.

Without intervention, NIHL can make speech difficult to understand and may contribute to safety risks, communication challenges and reduced quality of life. 

Careers at High Risk for Noise Exposure

Workers across many industries are exposed to hazardous noise levels. Common high-risk careers include:

  • Construction and manufacturingย 
  • Mining and heavy equipment operationย 
  • Aviation ground crews and transportation servicesย 
  • Entertainment and sporting venues (music, events, stadiums)
  • Landscaping and maintenance using power toolsย 

How an Audiologist Can Help Prevent and Treat NIHL

Audiologists play a key role in protecting long-term hearing health. Occupational audiology services may include:

  • Hearing evaluations to detect early signs of NIHLย 
  • Counseling on reducing exposure with quieter equipment, better workspace design or schedule changesย 
  • Guidance on selecting effective hearing protection devices like earplugs or earmuffsย 
  • Ongoing monitoring for workers in highโ€‘noise environments to track changes over timeย 

While hearing loss from noise cannot be reversed, preventive care and early detection help preserve remaining hearing and support safer work conditions.