Noise Exposure Calculator, Canada CCOHS
Free workplace noise exposure calculator. Enter noise levels in dB(A) and exposure durations to calculate your daily personal noise exposure (LEP,d), percentage of daily dose, and compare against OSHA PEL (90 dB), UK HSE (85 dB), and EU Directive 2003/10/EC (80/85 dB) limits.
Calculate workplace noise exposure against Canadian standards. Canada does not have a single federal noise standard for private sector workers, most provinces follow occupational noise standards set between 85–90 dB(A) TWA depending on the jurisdiction.
Federal workers (under Canada Labour Code) follow the Canada Occupational Health and Safety Regulations (COHSR), which sets 87 dB(A) LEX,8h with a 3 dB exchange rate. Most provinces follow different standards, always check your specific provincial WHS regulation.
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Frequently Asked Questions, Noise Exposure Calculator in Canada CCOHS
What is the federal noise exposure limit in Canada?↓
The Canada Occupational Health and Safety Regulations (COHSR), covering federally regulated workplaces, set the occupational noise exposure limit at 87 dB(A) LEX,8h using the 3 dB exchange rate. This applies to banks, airlines, railways, telecommunications, and other federal industries. Provincial workplaces follow provincial standards.
Do Canadian provinces have different noise limits?↓
Yes. Provincial noise limits vary. Most provinces set PELs between 85–90 dB(A) TWA. Ontario and BC use 85 dB(A) with a 3 dB exchange rate. Alberta uses 85 dB(A) but with a 5 dB exchange rate for some applications. Quebec uses 90 dB(A) for 8 hours. Always consult the specific provincial OH&S regulation for the province where work is performed.
What resources does CCOHS provide for noise management?↓
The Canadian Centre for Occupational Health and Safety (CCOHS) provides free guidance documents, noise exposure fact sheets, a noise calculator, and educational resources at ccohs.ca. CCOHS is a national resource but does not set regulations, regulatory authority sits with provincial/territorial governments for most workplaces.
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