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An employer shall take reasonable measures to ensure that noise levels
at a work site do not exceed the occupational exposure limits set out in Table
1 of Schedule A. The exposure limits are listed below.
Occupational exposure limits (noise)
|
Sound level (dBA) |
Maximum permitted
duration (hours per day |
|
80 |
16 |
|
85 |
8 |
|
90 |
4 |
|
95 |
2 |
|
100 |
1 |
|
105 |
0.5 |
|
110 |
0.25 |
|
115 |
0.125 |
|
> 115 |
0 |
Occupational exposure limits (impulse noise)
|
Peak sound pressure
level (decibels) |
Maximum permitted
(impulses per 8-hour day) |
|
120 |
10,000 |
|
130 |
1,000 |
|
140 |
100 |
|
>140 |
0 |
Where noise levels at a work site exceed the limits, the employer must
provide to each worker hearing protective equipment that complies with the
Canadian Standards Association Standard Z94.2-94, Hearing Protectors.
No person shall work where such noise levels exist without wearing that
protective equipment. (General Safety Regulations 1990, 31)
Where a worker is required to work in a noisy area the employer shall
take appropriate measures to suppress the noise, but if it is not reasonably practicable
to decrease the noise nor isolate the worker from the noise, the worker shall
wear personal protective equipment that will protect him or her from the
harmful effects of the noise. (General Safety Regulations 1990, 30)
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