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PMCH 600 INDUSTRIAL HYGIENE

PMCH 600 INDUSTRIAL HYGIENE. October 24, 2005 R. Leonard Vance, Ph.D., CIH. WHAT IS INDUSTRIAL HYGIENE. IDENTIFICATION, EVALUATION, & CONTROL OF TOXIC SUBSTANCES & HARMFUL PHYSICAL AGENTS IN THE WORKPLACE & IN THE ENVIRONMENT. TOXIC SUBSTANCES CHEMICALS MICROBIOLOGICAL AGENTS

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PMCH 600 INDUSTRIAL HYGIENE

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  1. PMCH 600 INDUSTRIAL HYGIENE October 24, 2005 R. Leonard Vance, Ph.D., CIH

  2. WHAT IS INDUSTRIAL HYGIENE IDENTIFICATION, EVALUATION, & CONTROL OF TOXIC SUBSTANCES & HARMFUL PHYSICAL AGENTS IN THE WORKPLACE & IN THE ENVIRONMENT

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

  4. 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

  5. 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

  6. 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

  7. 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

  8. Dirty Ducts

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

  10. Exposure Limits • OSHA PEL’s (permissible exposure limits) • OSHA STEL’s (short term, 15 minutes) • OSHA ceilings (instantaneous limits) • OSHA BEI’s (biological exposure indices) • ACGIH TLV’s (threshold limit values)

  11. OSHA NOISE STANDARD • Protection below PEL required • Methods of Control • Permissible Noise Levels • Hearing Conservation Program; >85db • Monitoring • Employee Notification • Audiometric Testing Program • Hearing protection equipment requirements • Training & employee access • Recordkeeping

  12. 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.............| 115

  13. The Legal FrameworkOSHA Standards • PEL Permissible Exposure Limit • STEL Short Term Exposure Limit • Monitoring • Methods of Control • Respirators • Hazard Communication • Medical Surveillance • Recordkeeping

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

  15. Methods of Control • Engineering Controls • Administrative Controls • Work Practices • Personal Protective Equipment

  16. Engineering Controls

  17. Negative pressure containment

  18. Administrative Controls • Employee Rotation • Ergonomic Hazards • Noise • Lead • Carcinogen Issue - Prohibition

  19. Work Practices

  20. Personal Protective Equipment • Respirators • Protective Clothing • Protective eyeglasses, shoes, etc. • Hardhats

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

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

  23. Hazard Communication • Placarding & Labeling • Material Safety Data Sheets • Training & Education • Chemical List

  24. 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.

  25. Hot & Cold Environments

  26. ETHICS IH WORKS FOR, REPORTS TO, & IS PAID BY EMPLOYER. DUTY: PROTECT WORKERS CONFLICTS INEVITABLE

  27. 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

  28. Board Certification: “CIH”

  29. 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”

  30. Our highly trained industrial hygiene team

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