PMCH 600 INDUSTRIAL HYGIENE

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PMCH 600 INDUSTRIAL HYGIENE

• October 24, 2005
• R. Leonard Vance, Ph.D., CIH

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WHAT IS INDUSTRIAL HYGIENE

• IDENTIFICATION,
• EVALUATION,
• CONTROL OF
• TOXIC SUBSTANCES HARMFUL PHYSICAL AGENTS IN
  THE WORKPLACE
• IN THE ENVIRONMENT

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• TOXIC SUBSTANCES
• CHEMICALS
• MICROBIOLOGICAL AGENTS
• HARMFUL PHYSICAL AGENTS
• NOISE
• RADIATION
• ERGONOMICS/REPETITIVE MOTION
• HOT COLD ENVIRONMENTS

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Occupational Health Team

• Occupational Physicians - Dr. Compton
• Industrial or occupational Hygienists
• Occupational Health Nurse
• Microbiologist
• Engineers
• Safety Personnel
• Ergonomists
• Chemists Lab Personnel
• radiation, toxicology, epidemiology

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Industrial Hygiene Subject Matter

• Identification of Hazards
• experience
• study
• defined by client
• Evaluation of Hazards
• Monitoring sample collection analysis
• Control of Hazards
• engineering, admin., work practices, PPE

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Why Learn about IH

• Why learn about public health?
• Protect Safety Health of Workers/Public
• Deal with public concerns/hysteria
• Avoid Liability
• Promote Harmony Reduce Acrimony
• workers
• management
• community
• government

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Typical IH Problems

• Survey flooded building for mold
• Health Hazard Survey in factory
• Indoor Air Quality (IAQ) evaluation
• Monitor asbestos/Pb removal at VCU
• Lead Inspection - adult/child protection
• Noise survey, printing plant
• OSHA/EPA Compliance consultation

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Dirty Ducts
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Chemical Exposures

• Dusts
• Asbestos, silica
• Volatile organic compounds
• Benzene, ethylene oxide
• Metals
• Pb, Hg
• Pesticides/herbicides

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Exposure Limits

• OSHA PELs (permissible exposure limits)
• OSHA STELs (short term, 15 minutes)
• OSHA ceilings (instantaneous limits)
• OSHA BEIs (biological exposure indices)
• ACGIH TLVs (threshold limit values)

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OSHA NOISE STANDARD

• Protection below PEL required
• Methods of Control
• Permissible Noise Levels
• Hearing Conservation Program gt85db
• Monitoring
• Employee Notification
• Audiometric Testing Program
• Hearing protection equipment requirements
• Training employee access
• Recordkeeping

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TABLE G-16 - PERMISSIBLE NOISE EXPOSURES (1)
__________________________________________________
____________
Duration per day, hours Sound level dBA slow
response _____________________________________
________________________
8...........................
90 6...........................
92 4...........................
95 3...........................
97 2.......................
.... 100 1 1/2
.................... 102
1..........................
105 1/2 ........................
110 1/4 or less.............
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The Legal FrameworkOSHA Standards

• PEL Permissible Exposure Limit
• STEL Short Term Exposure Limit
• Monitoring
• Methods of Control
• Respirators
• Hazard Communication
• Medical Surveillance
• Recordkeeping

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MONITORING

• Air Monitoring
• personal
• area
• real time
• Laboratory Analysis
• Noise
• Lead - XRF
• Radiation
• Hot Cold

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Methods of Control

• Engineering Controls
• Administrative Controls
• Work Practices
• Personal Protective Equipment

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Engineering Controls

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Negative pressure containment
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Administrative Controls

• Employee Rotation
• Ergonomic Hazards
• Noise
• Lead
• Carcinogen Issue - Prohibition

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Work Practices
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Personal Protective Equipment

• Respirators
• Protective Clothing
• Protective eyeglasses, shoes, etc.
• Hardhats

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Respirators
Quarter Mask
Half Mask
Full Facepiece
Mouthpiece/Nose Clamp (no fit test required)
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RESPIRATORS

• Use Limitations
• Selection
• Protection Factors
• IDLH Atmospheres
• Fi testing, Fit factors
• Written Respirator Program

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Hazard Communication

• Placarding Labeling
• Material Safety Data Sheets
• Training Education
• Chemical List

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Medical Surveillance

• Done by MD, nurse, audiologist
• need to know
• what exposed to
• levels of exposure - IH role
• various medical tests
• pulmonary function tests
• blood lead levels, etc.

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Hot Cold Environments
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ETHICS

• IH WORKS FOR, REPORTS TO, IS PAID BY EMPLOYER.
• DUTY PROTECT WORKERS
• CONFLICTS INEVITABLE

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ISSUES

• Who will determine whether to sample
• who will sample
• where will samples be collected
• who will analyze
• who will determine what is to be done
• methods of control

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Board Certification CIH
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References

• www.aiha.org
• www.acgih.org
• www.abih.org
• www.osha.gov
• www.cdc.gov.niosh
• The Occupational Environment - Its Evaluation,
  Control, and Management DiNardi, S. R. , Ed.
  AIHA, 2003 White Book

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Our highly trained industrial hygiene team