Course Outline

Module 1: Fundamentals of Sound and Noise

• Sound wave properties: frequency, wavelength, amplitude.

• Decibels (dB), frequency weighting networks (dBA, dBC), and time weighting (Fast, Slow).

• Health effects of noise: hearing loss, tinnitus, non-auditory effects.

• Exercise: Calculating dB addition and averaging.

Module 2: Occupational Noise Exposure Standards and Metrics

• Occupational Exposure Limits (OELs): OSHA PEL, ACGIH TLV.

• Key metrics: Time-Weighted Average (TWA), Exchange Rate (3-dB vs. 5-dB), Dose, Criterion Level.

• Workshop: Calculating noise dose and TWA from sample data.

Module 3: Noise Measurement Instrumentation

• Types of sound level meters (Class 1/Type 1 vs. Class 2/Type 2).

• Noise dosimeters: operation, placement, and use for personal exposure monitoring.

• Octave band analyzers for identifying frequency content.

• Hands-On Workshop: Calibrating and using a sound level meter and a dosimeter.

Module 4: Conducting a Noise Survey

• Developing a noise survey strategy: area monitoring vs. personal dosimetry.

• Identifying noisy areas and job classifications for monitoring.

• Documenting measurement conditions and results.

• Practical Exercise: Conducting a noise survey in a designated area or using simulated data.

Module 5: Noise Control Principles and Strategies

• The hierarchy of controls applied to noise: engineering, administrative, PPE.

• Principles of noise control: absorption, barriers, isolation, damping.

• Hearing Protection Devices (HPDs): selection, fit-testing, and attenuation.

• Final Project: Analyzing a noise survey dataset, identifying areas of over-exposure, and recommending a control plan that prioritizes engineering solutions.