Noise

SUBJECT: NOISE
ORIGIN: Moldex® Technical Services Department
REVIEWED/UPDATED: July 2020

Overview

Noise, or unwanted sound, in the industrial environment is an everyday fact of working life. Exposure to high levels of noise causes hearing loss and may cause other harmful health effects such as tinnitus “ringing of the ears”, increased blood pressure, and stress related problems. Noise may also cause annoyance or difficulty in communicating or working effectively and safely.

Noise-induced hearing loss can be temporary or permanent. Temporary hearing loss results from short-term exposures to noise, with normal hearing returning after a period of rest. Generally, prolonged exposure to high noise levels over a period of time gradually causes permanent hearing loss.

The OSHA Hearing Conservation Amendment, 29CFR1910.95, requires a comprehensive hearing conservation program for all employees whose noise exposures equal or exceed an 8-hour time-weighted average (TWA) of 85 decibels (dB), known as the “Action Level”. Use of hearing protection is recommended at this level. At noise levels exceeding 90 dB, employees are required to use hearing protection.

Between 1986 and 1997, NIOSH prepared a summary of noise exposure evaluations made at a variety of industries. A summary of this data is included.

Moldex® Solution

Recommend usage of our hearing protection products for areas exceeding 85 dB. The NIOSH summary will provide some guidance on the types of industries which can be targeted.
Affected Industries

Refer to Survey Table that follows.
Reference And Resources

NIOSH Health Hazard Evaluations: Noise and Hearing Loss 1986-1997, published November ’98.
Noise and Hearing Loss Prevention: https://www.cdc.gov/niosh/topics/noise/
NIOSH sound meter – https://www.cdc.gov/niosh/topics/noise/app.html
https://blogs.cdc.gov/niosh-science-blog/2014/04/09/sound-apps/

NIOSH Survey Results

Industry

SIC

Job Description/Area

Exceeded 85dBA

Aerial Pesticide Application

0721

Pilot, aerial applicators Yes
Bridge Repainting

1622

Abrasive Blasting/Bridge Workers Yes
89.6dBA-105.4dBA
Sawmill

2421

Various Yes
Paper Mill

2645

Small Paper Cutting Yes
108dBA
Specialty Chemical Plant

2842

Cleaning & polishing operations Yes
84dBA-96dBA
Pipe Fabricating Plant

3079

Grinding/Line Takeoff/Hopper Yes
80dBA-104dBA
Glass Products Manufacturing

3231

Various Yes
79dBA-92dBA
Roofing Granules Manufacture

3295

Various Yes
> 85dBA
Oxygen Process Shop

3312

Various Yes
80dBA-106dBA
Road Sign Manufacture

3499

Metal Saw >115dBA
Outboard Motor Manufacturing

3519

Various Yes
Industrial Centrifugal
Equipment Manufacture

3559

Various Yes
Energy and Automation Plant

3621

Welding/Punch Press Yes
Electronics Manufacture Plant

3651

Various Yes
> 85dBA
Plastic Accessories
Manufacturing Plant

3751

Various Yes
Landfill

4953

Heavy Equipment Operators, Mechanics, Laborers, Garbage Collectors Yes
> 90dBA
Wholesale Trade

5122

Warehousing No
Near 85dBA
Fire Fighting

9224

Emergency Response Yes (Short bursts)
Police Officers

9221

Gun Firing Exercises 157dBA-160dBA
Fire Fighting

9224

Assigned to Airports during Code 3 Lights, Sirens, Horns Short Bursts to 109dBA

WARNING: The information contained in this Tech Brief is dated and was accurate to the best of Moldex’s knowledge, on the date above. It is not meant to be comprehensive, nor is it intended to be used in place of the warning/use instructions that accompany Moldex respirators. Outside of the USA, check with all applicable and local government regulations.

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