what is the the acceptable noise level in industries?

Answer 1

Below 85dbs. Anything above that for long periods of time can cause hearing damage. We just had a check the other day. That audit guy told me that.

Answer 2

85 dB is for noise or music .
When I worked it was discovered that a lot of people were with hearing problems in there left ear.
back then no work vehicles had air condition so every body road with the left window down. The air banging the ear drum was the cause. Protect your ears from loud noises . Life is much better with good ears and eyes.

Answer 3

The NSW EPAs Industrial Noise Policy (INP) is specifically aimed at assessing noise from industrial noise sources that are scheduled under the Protection of the Environment Operations Act 1997. The policy is designed for large and complex industrial noise sources, however local government may apply the general principles of the policy when assessing Council controlled premises, or in the carrying out of its land use planning responsibilities.



what noise sources does it apply to?

In general, the types of noise sources dealt with in the policy are:

Facilities (encompassing all activities taking place with the property boundary of the facility) usually comprising of many sound sources, including:

Industrial premises
Extractive industries
Commercial premises
Warehousing facilities
Maintenance and repair facilities (for example, Marinas)

Individual industrial noise sources, such as:

Heating, ventilating and air conditioning equipment
Rotating equipment
Impacting mechanical sources
Other mechanical equipment, such as conveyors
Mobile sources confined to a particular location, such as drag lines and haul trucks
Vehicle movements associated with an industrial source that are NOT on a public road.


what noise sources do not apply?

Examples of noise sources that are not dealt with by the policy are:

Transportation corridors, including roadways (covered by the Environmental Criteria for Road Traffic Noise), railways and air corridors.

Motor sport facilities

Construction activities, covered by the Environmental Noise Control Manual

Noise sources covered by the regulations (domestic, neighbourhood noise)



what is the noise criteria?

The assessment procedure in terms of the NSW EPA’s ‘Industrial Noise Policy’ (INP) has two components:

Controlling intrusive noise impacts in the short term for residences, called the Intrusiveness Criterion.

Maintaining noise level amenity for particular land uses for residences and other land uses, called the Amenity Criterion.

In assessing the noise impact of industrial noise sources, both components must be taken into account, however in most cases only one (the more conservative value) will become the limiting criterion and form the ‘project specific noise levels’ for the industrial noise source.



Intrusive Noise criterion

According to the EPA’s INP, the intrusiveness of a mechanical noise source may generally be considered acceptable if the equivalent continuous (energy-average) A-weighted level of noise from the source (represented by the LAeq descriptor) does not exceed the background noise level measured in the absence of the source by more than 5dB(A).

The intrusiveness criterion is summarised as follows:

LAeq £ Rating background noise level plus 5dB(A)

Where:

LAeq,15minute represents the equivalent continuous (energy-average) A-weighted sound pressure level of the source over 15 minutes.

Rating background level is the background level to be used for assessment purposes as determined by the method outlined in Section 3.1 of the INP.



noise amenity criterion

To limit continuing increases in noise levels, the maximum ambient noise level within an area from industrial noise sources should not normally exceed the acceptable noise levels specified in Table 2.1 of the policy

Table 4.1 – AMENITY CRITERIA

Recommended LAeq Noise Levels from Industrial Sources

Type of Receiver
Indicative Noise Amenity Area
Time of Day
Recommended LAeq Noise Level, dB(A)

Acceptable
Recommended Maximum

Residence
Rural
Day
50
55

Evening
45
50

Night
40
45

Urban
Day
55
60

Evening
45
50

Night
40
45

Urban
Day
60
65

Evening
50
55

Night
45
50

Urban/Industrial Interface – for existing situations only
Day
65
70

Evening
55
60

Night
50
55

School Classroom-internal
All
Noisiest 1hr period when in use
35
40

Hospital Ward - Internal
All
Noisiest 1hr period
35
40

Hospital Ward - External
All
Noisiest 1hr period
50
55

Place of Worship - Internal
All
When in use
40
45

Area reserved for Passive Recreation (eg National Park)
All
When in use
50
55

Active Recreation Area (eg school playground, golf course)
All
When in use
55
60

Commercial Premises
All
When in use
65
70

Industrial Premises
All
When in use
70
75

Answer 4

80 dB