Industrial Hygiene

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Industrial Hygiene
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Industrial Hygiene

• A specialization in the broad field of safety and
  health.

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OSHAct and Industrial Hygiene

• Use Warning Labels
• Use proper PPEs
• Provision of medical tests
• Maintain accurate records
• Accessibility Availability of tests
  monitoring to employees
• Notification of employees who have been exposed
  to environmental stressors

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OSHA Process Safety

• Coverage
• Employee Participation
• Process Safety Information
• Process Hazard Analysis
• Standard Operating Procedures
• Requirements for Contractors

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MSDS Sheets

• General Information
• Hazardous Ingredients
• Physical Chemical Characteristics
• Fire Explosive Hazard Data
• Health Hazards
• Safe Handling and Use
• Control Measures

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Points of Entry

• Inhalation
• Absorption
• Ingestion
• Injection

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Effects

• Acute
• Sudden dose, high concentrations
• Chronic
• Gradual dose over a period of time

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Airborne Contaminants

• Dusts
• Fumes
• Smoke
• Aerosols
• Mists
• Gases
• Vapors

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Effects of Airborne Contaminants

• Irritants
• Irritation to the skin, eyes, nose, mouth,
  throat, and upper respiratory tract
• Asphyxiants
• Disrupt breathing so severely that suffocation
  results
• Narcotics

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Common Industrial Hygiene Problems

• Asbestos
• Sick Building Syndrome
• Explosive Hazards
• Confined Space

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Exposure Thresholds

• Time Weighted Average (TWA)
• Short-term Exposure Limit
• Exposure Ceiling

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Recognizing Hazards

• What is produced?
• What raw materials are used?
• What additional materials are used in the
  process?
• What equipment is used?
• What operational procedures are involved?

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Recognizing Hazards

• What dust control procedures are involved?
• How are accidental spills cleaned up?
• How are waste by-products disposed?
• Is there adequate ventilation?
• Are the processes equipped with exhaust devices?

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Recognizing Hazards

• How does the facility layout contribute to
  employee exposure?
• Are properly working PPEs available?
• Are safe operating procedures recorded, made
  available, monitored and enforced?

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Control

• Engineering Controls
• Ventilation
• PPEs
• Administrative Controls
• Additional Strategies

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Important Laws

• OSHA Chemical Process Standard
• EPA Clean Air Act
• SARA
• Hazardous Materials Transportation Uniform
  Safety Act.

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Confined Space Standard

• Shutdown Equipment/Power
• Test Atmosphere
• Ventilate the Space
• Have Rescue Personnel Stand By
• Maintain Communication
• Use a Lifeline

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Industrial SafetyIT 335

• Chapter 16
• Noise and Vibration Hazards

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Characteristics

• Noise
• Unwanted sound
• Decibel
• Measurement of sound
• Threshold of Hearing
• Sounds heard by the human ear
• Threshold of pain
• Max level of sound without experiencing pain

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Hearing Loss Factors

• Intensity of the Noise
• Type of Noise
• Daily Duration of Exposure
• Total Duration of Exposure
• Individuals age

• Coexisting hearing problems
• Nature of the Environment
• Distance from the source
• Position of the ears relative to the sound source

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Critical Noise Risk Factors

• Noise Level
• Frequency
• Duration
• Distribution

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OSHA Regulations

• Monitoring Noise Levels
• Medical Surveillance
• Noise Controls
• Personal Protection
• Education Training

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Workers Comp. Hearing Loss

• Onset and Progress of the employees history of
  hearing loss
• The employees complete work history
• Results of a hearing exam
• Results of hearing studies
• Determination of whether the loss originated from
  outside the workplace

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Identifying Noise Hazards

• Noise Surveys
• Audiometric Testing
• Record Keeping
• Follow-Up

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Noise Controls

• Engineering Controls (pg 378-379)
• Administrative Controls (pg 380)
• Hearing protection (pg 380)

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PreventingVibration Hazards

• Low Vibration tools
• Limit Employee Exposure
• Change Employee Work Habits