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| | Introduction |
| Section I | Why do we worry about noise |
| |
- Health effects: Auditory effects
-
Health Effects: Non-Auditory Effects
- Physiological Effects
- Performance Effects
- Effect on Pregnancy
|
| Section II | Basics of Noise |
| |
- What is noise?
- How do I know if I have noise problem in my workplace ?
- Production and Transmission of Noise
- Units and Measures of Noise
- Units and Measures of Workplace Noise
- A-Weighted Noise Levels
- Sound Pressure Level and Sound Energy
- Continuous, Variable, Intermittent and Impulse Noise
- Sound Power
- Relationship Between Sound Pressure Level and Sound Power Level
|
| Section III | Measures of Workplace Noise |
| |
- Workplace Noise Level
- Noise Exposure Level of an Employee
- Relationship Between Noise Exposure Level and Noise Level
Time Weighted Average (TWA) Noise
- Exposure Level
- Comparison: TWA based on 3-dB and 5-dB exchange rates (rules)
- Evaluation of Noise Exposure Level
|
| Section IV | Instruments and Methods of Measuring Noise |
| |
- Identifying Noise Problem
- Planning Noise Measurement
- Selecting Noise Measuring Instruments
- Sound Level Meter
- Integrating Sound Level Meter
- Noise Dosimeter
- Octave Band Analyzers
- Effects of Environmental Conditions on Noise Data
- Correction for Background Noise
- Conducting Noise Measurements
- Noise Survey
- Measuring Equivalent Noise Using An Integrating Sound Level Meter
- Noise Dosimetry
- Measuring Impulse/Impact Noise
- Documenting Noise Levels Data
|
| Section V | Evaluating the Risk of Noise-Induced Hearing Loss |
| |
- Types of Hearing Loss
- Permanent Hearing Loss
- Hearing Loss Due to Aging
- Other Causes of Hearing Loss
- Measures of Hearing Loss
- Relationship Between Noise Exposure
And Hearing Loss
|
| Section VI | Occupational Noise Exposure Limits |
| |
- Noise Exposure Limits
- Exposure Limits for Impulse/Impact Noise
- Noise Exposure Limits for Extended Workshifts
- Deciding Exposure Limits for Extended Workshifts
- Canadian and U.S. Noise Regulations
- Synergistic Effects: Ototoxic Chemicals
- Office Noise Levels
|
| Section VII | Managing Workplace Noise Problems |
| |
- Hearing Conservation Program Components
- Noise Monitoring: Hazard Identification
- Noise Reduction: Engineering Controls
- At the Source
- Along the Path
- Hearing Protection
- Advantages and Limitations of Earplugs and Earmuffs
- Standards
- Noise Reduction Rating (NRR) of Hearing Protectors
- Hearing Measurement
- Administrative Controls
- Employee Training
- Program Evaluation and Continuous Improvement
|
| Section VIII | Occupational Health and Safety Legislation |
| |
- Canadian Legislation
- What Does the OH & S Legislation Say
- Workplace Hazardous Material Information System WHMIS)
- Fire Code
- Building Code
- U.S. Legislation
|
| Section IX | Information Sources |
| |
- In Canada
- In the U.S.A..
|
| Appendix A. | Sound Pressure Level Calculations |
| |
Definition of Decibel (dB)
Convert Dose to Equivalent Sound Level (Leq)
|
| Appendix B. | Relevant Noise Standards |
| |
Canadian Standards Association
American National Standards Institute (ANSI).
|
| Appendix C. | Further Reading |
| Appendix D. | Sound Absorbing and Sound Attenuation of Some Building Materials and Furnishings |
