Noise is a physical hazard that is found in many workplaces. High noise levels in workplaces can create stress and lead to noise induced hearing loss if exposure is uncontrolled. Noise can also be a safety hazard if it interferes with communication or warning signals in the workplace. Ontario Regulation 351/15 as written under the Occupational Health & Safety Act requires employers to take all measures reasonably necessary in the circumstances to protect workers from exposure to hazardous sound levels.
Occupational noise surveys can be completed to:
Norpro H&S conducts noise level surveys using an integrated sound level meter (ISLM) to measure noise levels throughout the workplace. Noise levels can be depicted in tabular format and/or recorded on a floor plan of the workplace. Baseline noise level surveys are a great way to identify point sources of noise in the workplace as well as any areas that may expose workers to noise levels about the occupational exposure limit.
When a noise level survey shows that noise levels exceed the occupational exposure limit for noise, it is recommended that a noise exposure survey be conducted. These surveys are conducted using personal noise exposure monitors, or noise dosimeters. Employee noise exposures are measured for various work processes for the duration of their shift. Noise levels can be reviewed over the course of the shift to determine what the high-risk noise areas, or tasks are.
In Ontario, no workers shall be exposed to a sound level greater than an equivalent sound exposure level of 85 dBA, Lex,8. Lex,8 refers to the sound levels averaging over a duration of 8 hours, which is a typical work shift.
If there is a change to a work process, or new equipment is installed in the workplace that could contribute to overall noise levels, it is advisable that noise levels are reassessed. Reassessments are important to ensure that noise levels in the workplace haven’t changed and any implemented controls are still adequate.
“ We have had the pleasure of working with Norpro on several occasions for indoor air quality assessments. Their prompt and professional service made the entire process seamless and productive. The team members took the time to listen to our concerns, meticulously review all necessary documentation, and truly understand our specific needs. The assessments were carried out in a timely manner, with very thorough reporting and actionable, manageable recommendations for controls. Norpro’s communication with our team was not only efficient but also insightful, ensuring proper mitigation of the concerns at hand. I highly recommend Norpro for their expertise, dedication, and commitment to delivering exceptional results. ”
— Luci Wurdemann, Algoma University
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