Assessment & Report By
What is Hazardous Workplace Noise?
- LAeq,8h of 85dB(A) – that is an 8-hour time-weighted average (8-hour TWA) exposure that is averaged over the duration of the shift which if exceeded would cause damage to hearing over a period of time; or
- LC,peak of 140dB(C) – that is sudden impulse noise from activities such as hammering, explosion, gun shot, being so loud that if exceeded would cause immediate damage to hearing.
Health Effects of Hazardous Workplace Noise?
- 50 dB(A) where work is being carried out that requires high concentration or effortless conversation (eg. office environment)
- 70 dB(A) where more routine work is being carried out that requires speed or attentiveness or where it is important to carry on conversations (eg. warehouse or industrial office facility).
Legislative Requirements – Identification of Hazardous Workplace Noise, Survey and Noise Exposure Assessment
The first step in managing noise issues in the workplace involves undertaking an occupational noise survey by a competent person in order to identify workplace operations, machinery and plant emitting hazardous noise levels exceeding the exposure standards.
Noise management in the workplace also requires a thorough understanding of workplace operations and devising a range of control measures in accordance with the hierarchy of controls including engineering and administrative controls and the development of Noise Management Plan (NMP) to ensure adequate reduction of the risk for Noise Induced Hearing Loss (NIHL).
- protecting workers from hearing loss and disabling tinnitus (ringing in the ears or head)
- improving the conditions for communication and hearing warning sounds
- creating a less stressful and more productive work environment.
How Can We Help in your Workplace Noise Survey, Assessment & Report?
‘Health Safety Consultants’ qualified occupational hygienists carry out expert level workplace / occupational noise surveys, noise measurements and noise exposure assessments in accordance with the methods described in Australian Standards AS/NZS 1269 (occupational noise measurement and management) and the WHS/OHS Authority Codes and Guidelines in order to identify problems areas and develop compliance noise reduction strategy for your workplace in accordance with the hierarchy of controls.The process will be documented in a comprehensive workplace noise report.
‘Health Safety Consultants’ occupational noise surveys, measurements and noise exposure assessments involve the following:
- Initial review of workplace facilities to identify noisy operations including plant & equipment, processes, work areas, determination of Similar Exposure Groups (SEG), ototoxic substances, hand-arm vibration activities, previous noise reports and existing control measures adopted in the workplace including details of hearing protection devices used (HPDs)
- Undertaking noise measurements using calibrated (NATA accredited calibration) Type 1, Class 1 precision Sound level Meter (SLM) for short-term spot noise measurements and worker-worn personal noise dosimeters (shift duration) for estimation of personal daily noise exposure to assist in the noise exposure assessment
- Assessment of noise exposure for operators, SEG and work areas
- Evaluation of Hearing Protection Devices (HPD)
- Noise contour
- Development of Noise Management Plan
- Provision of comprehensive workplace noise assessment report
- Compliance audit of noise arrangements and documentation in the workplace in accordance with codes and standards.
Our certified occupational hygienists regularly provide expert witness reports for cases where NIHL has been detected that may relate to workplace exposure and evaluation of workplace noise exposure is required.