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Industrial Noise Control –

the Singapore Experience







Industrialisation -Noise Pollution: attendant “necessary evil”?Industrialisation -Noise Pollution: attendant “necessary evil”?

Progressive transformation over 40 years…From entrepot trade to manufacturing…Now increasingly supported by information technology

Over 68,800 workers are exposed to noise in SingaporeOver 68,800 workers are exposed to noise in Singapore

Progressive transformation over 40 years…From entrepot trade to manufacturing…Now increasingly supported by information technology

Changing Industry Profile, Improving Trends

Average Noise Levels* in High Risk Workplaces

81.7

81.9 81.8

82.483.4

80

81

82

83

84

2000 2001 2002 2003 2004Year

L eq,

8h, d

BA

* 8-hr equivalent noise levels averaged over a 3-year period, e.g. for 2004, the noise level isaveraged over 2002, 2003 and 2004. Based on results of noise monitoring conducted every 3

years as required under the Factories (Noise) Regulations.

• 8-fold decline in incidence of NID (1976-2004)

• Decreasing noise exposure levels…

Average Noise Levels* in High Risk Workplaces

81.7

81.9 81.8

82.483.4

80

81

82

83

84

2000 2001 2002 2003 2004Year

L eq,

8h, d

BA

* 8-hr equivalent noise levels averaged over a 3-year period, e.g. for 2004, the noise level isaveraged over 2002, 2003 and 2004. Based on results of noise monitoring conducted every 3

years as required under the Factories (Noise) Regulations.

No Single Solution …No Single Solution …

• Regulatory mechanism• Training, information & guidance• Incentives• Engineering & technological innovations

• Regulatory mechanism• Training, information & guidance• Incentives• Engineering & technological innovations

Hearing Conservation On Wheels …

Raising Awareness

Mobile Audiometric Testing Facility…1976-1983

Regulatory Framework

Factories ActFactories Act• Effective means to reduce noise• Hearing protectors

Factories (Medical Examinations) RegulationsFactories (Medical Examinations) Regulations

• Effective means to reduce noise• Hearing protectors

• Pre-employment & annual examinations• Audiometry• Designated Factory Doctor

• Pre-employment & annual examinations• Audiometry• Designated Factory Doctor

Regulatory Framework

Factories (Noise) RegulationsFactories (Noise) Regulations

Permissible exposure limits

Noise Control measures

Competent persons for noisemonitoring & noise control

Permissible exposure limits

Noise Control measures

Competent persons for noisemonitoring & noise control

Regulations Relating toEnvironmental Noise Limits

Public Health (Boundary Noise Limits forFactory Premises) RegulationsPublic Health (Boundary Noise Limits forFactory Premises) Regulations

Ministry of the Environment and Water ResourcesMinistry of the Environment and Water Resources

Public Health (Boundary Noise Limits forFactory Premises) RegulationsPublic Health (Boundary Noise Limits forFactory Premises) Regulations

Environmental Pollution Control (Control ofNoise at Construction Sites) RegulationsEnvironmental Pollution Control (Control ofNoise at Construction Sites) Regulations

Codes of Practice

Selection, Use, Care andMaintenance of HearingProtectors


Industrial Noise ControlIndustrial Noise Control



Codes of Practice

Noise Control onConstruction andDemolition Sites




Surveillance and Enforcement Activities

Checks at factory registration stage

High risk workplaces targetted

Focus on noise labelling, noise control,assessment reports and control planning

National exposure database

Checks at factory registration stage

High risk workplaces targetted

Focus on noise labelling, noise control,assessment reports and control planning

National exposure database

Incentives For Action …

Tax Incentive SchemeTax Incentive Scheme

One-year accelerated depreciation allowanceOne-year accelerated depreciation allowance

Low-decibel new machinery orLow-decibel new machinery orLow-decibel new machinery orLow-decibel new machinery or

Installation of noise control equipmentInstallation of noise control equipment

Noise level at or below 82 dBANoise level at or below 82 dBA

>6dBA reduction

REDUCTION IN EXPOSUREREDUCTION IN EXPOSURE

Machine/ProcessMachine/Process

OCCUPATIONALOCCUPATIONALHEALTHHEALTH

BESTBESTPRACTICESPRACTICES

AWARDAWARD

Incentives For Action …

• Entire Premises <85dBA

• Entire Premises < 90 dBA• Hearing Conservation Programme

Entire Premises

OCCUPATIONALOCCUPATIONALHEALTHHEALTH

BESTBESTPRACTICESPRACTICES

AWARDAWARD

Raising Awareness, Building Capabilities…

Information & GuidanceInformation & Guidance

Guidelines on Industrial Noise & Vibration Control

Guidelines on an Effective Hearing ConservationProgramme

Guidelines on Noise Labelling

Fact Sheet on Noise-induced Deafness

Fact Sheet on the Factories (Noise) Regulations 1996
















Training of Competent PersonsTraining of Competent Persons

Noise monitoring

Noise control

Noise emission and labelling

Audiometric screening

Noise monitoring

Noise control




Noise monitoring

Noise control



Noise monitoring

Noise control



Monitoring Facilities& Practice StandardsMonitoring Facilities& Practice Standards

Promotional ActivitiesPromotional Activities

Reaching out to industryReaching out to industry


Reaching out to industry

Collaborative projects onHearing ConservationCollaborative projects onHearing Conservation

Sharing Best Practices

Learning from Success Stories…Learning from Success Stories…

Global Web PortalGlobal Web Portal

Meeting the ChallengeMeeting the Challenge

Multi-pronged ApproachMulti-pronged Approach

Proactive StrategyProactive StrategyProactive StrategyProactive Strategy

Focussed EffortsFocussed Efforts

Leveraging PartnershipsLeveraging Partnerships

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Documents

trendsaverage noise

results of noise monitoring

hr equivalent noise

information technologyover

attendant necessary

yearsfrom entrepot trade

high risk workplaces81

yearl eq