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Western Health and Safety provides CIH-led noise exposure assessment services across Calgary, Alberta and British Columbia. Workplace noise is a common but often underestimated hazard, particularly in construction, manufacturing, and oil and gas environments. Proper assessment is critical to determine compliance with occupational exposure limits and to protect worker hearing.
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When is a Noise Exposure Assessment Required?
Noise exposure assessments are required when workers may be exposed to sound levels exceeding occupational exposure limits. This commonly occurs in industrial environments such as construction sites, fabrication shops, oil and gas operations, and processing facilities.
Employers are responsible for identifying potential overexposure and implementing monitoring when noise levels approach or exceed regulatory thresholds. Early assessment helps prevent long-term hearing damage and supports compliance with Alberta Occupational Health and Safety (OHS) and WorkSafeBC requirements.
Employers are responsible for identifying potential overexposure and implementing monitoring when noise levels approach or exceed regulatory thresholds. Early assessment helps prevent long-term hearing damage and supports compliance with Alberta Occupational Health and Safety (OHS) and WorkSafeBC requirements.
Noise Monitoring and Dosimetry
Noise exposure is evaluated using personal dosimeters and sound level measurements to assess worker exposure over a full shift. Dosimeters are worn by workers and measure cumulative exposure, while sound level meters are used to identify high-noise areas and specific tasks.
This data provides a clear understanding of exposure levels and helps determine whether controls or hearing conservation measures are required.
This data provides a clear understanding of exposure levels and helps determine whether controls or hearing conservation measures are required.
CIH-Led Noise Exposure Assessment
Western Health and Safety conducts noise exposure assessments under the direction of Certified Industrial Hygienists (CIHs). This ensures that monitoring programs are structured, defensible, and aligned with regulatory expectations across Alberta and British Columbia.
Our approach focuses on practical application, helping employers understand exposure risks and implement appropriate control strategies.
Our approach focuses on practical application, helping employers understand exposure risks and implement appropriate control strategies.
Noise Exposure Regulations in Alberta and British Columbia
Workplace noise exposure is regulated under Alberta Occupational Health and Safety legislation and WorkSafeBC requirements. In most cases, action is required when worker exposure exceeds 85 dBA over an 8-hour workday.
Employers must assess exposure, implement controls where necessary, and establish hearing conservation programs when limits are exceeded. Proper monitoring ensures compliance and supports long-term worker health.
Employers must assess exposure, implement controls where necessary, and establish hearing conservation programs when limits are exceeded. Proper monitoring ensures compliance and supports long-term worker health.
Noise Exposure Assessment FAQ
🟢 1. When is a noise exposure assessment required?
Noise exposure assessments are required when there is a reasonable potential for workers to be exposed to elevated sound levels, particularly in construction, manufacturing, and oil and gas environments. Monitoring helps determine whether exposure exceeds regulatory limits and if further controls are necessary. Typically when workers are exposed to 82dBA then a noise exposure assessment is required.
🟢 2. What are acceptable workplace noise exposure limits?
In most jurisdictions, including Alberta and British Columbia, action is required when worker exposure exceeds approximately 85 dBA over an 8-hour workday. Exposures above this level require assessment, control measures, and potentially a hearing conservation program.
🟢 3. What is a noise dosimeter and how is it used?
A noise dosimeter is a device worn by a worker to measure cumulative noise exposure over a full shift. It provides accurate, real-world data on exposure levels, helping determine compliance with occupational limits and identifying high-risk tasks.
🟢 4. When is a hearing conservation program required?
A hearing conservation program is typically required when noise exposure exceeds occupational limits. These programs include monitoring, worker training, hearing protection, and ongoing evaluation to reduce the risk of long-term hearing loss.
🟢 5. What happens if workplace noise exceeds allowable limits?
If noise levels exceed regulatory limits, employers are required to implement control measures such as engineering controls, administrative changes, or hearing protection. Failure to address excessive noise exposure can lead to regulatory non-compliance and increased risk of worker hearing damage.
Industrial Hygiene Perspective
Noise exposure assessments are essential for identifying workplace risk and ensuring compliance with occupational exposure limits. Western Health & Safety provides CIH-led noise monitoring and assessment services across Calgary, Alberta and British Columbia, supporting regulatory compliance and long-term worker protection.
Speak With a Certified Industrial Hygienist
We’re not just consultants — we’re field-ready certified hygienists with deep knowledge of Alberta and BC’s occupational noise standards. Our team
updated April 2026