![Some Statistics
• Accidents [unintentional injuries], annual, US
– 20,000,000 disabling injuries
– 100,000 deaths
– 500,000 hospitalizations
– 4,000,000 ER visits](https://image.slidesharecdn.com/indhygienelecture1007-240211151017-7960ab67/85/IndHygieneLecture_10_07-ppt-39-320.jpg)
IndHygieneLecture_10_07.ppt
- 1. PMCH 600 INDUSTRIAL HYGIENE October 22, 2007 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
- 4. • TOXIC SUBSTANCES – CHEMICALS – MICROBIOLOGICAL AGENTS • HARMFUL PHYSICAL AGENTS – NOISE – RADIATION – ERGONOMICS/REPETITIVE MOTION – HOT & COLD ENVIRONMENTS
- 6. 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
- 7. Industrial Hygiene Subject Matter • What, How much, What is to be done??? • Identification of Hazards – experience – study – defined by client • Evaluation of Hazards – Monitoring: sample collection & analysis • Control of Hazards – engineering, admin., work practices, PPE
- 8. 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
- 10. Chemical Exposures • Dusts – Asbestos, silica • Volatile organic compounds – Benzene, ethylene oxide • Metals – Pb, Hg • Pesticides/herbicides
- 12. 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)
- 13. The Legal Framework OSHA Standards • PEL Permissible Exposure Limit • STEL Short Term Exposure Limit • Monitoring • Methods of Control • Respirators • Hazard Communication • Medical Surveillance • Recordkeeping
- 15. OSHA BENZENE STANDARD • Permissible Exposure Limits – 1 ppm; 8 hour TWA – 5 ppm 15 min. STEL • Monitoring • Methods of Control • Respirators • Medical Surveillance – Next slide • Hazard Communication • Employee Notification • Recordkeeping
- 18. MONITORING • Air Monitoring – personal – area – real time – Laboratory Analysis • Noise • Lead - XRF • Radiation • Hot & Cold
- 23. Methods of Control • Engineering Controls • Administrative Controls • Work Practices • Personal Protective Equipment
- 26. Administrative Controls • Employee Rotation • Ergonomic Hazards • Noise • Lead • Carcinogen Issue - Prohibition
- 27. Work Practices
- 28. Personal Protective Equipment • Respirators • Protective Clothing • Protective eyeglasses, shoes, etc. • Hardhats
- 29. Respirators Quarter Mask Half Mask Full Facepiece Mouthpiece/Nose Clamp (no fit test required)
- 30. RESPIRATORS • Use & Limitations • Selection • Protection Factors • IDLH Atmospheres • Fit testing, Fit factors • Written Respirator Program
- 31. Hazard Communication • Placarding & Labeling • Material Safety Data Sheets • Training & Education • Chemical List
- 32. 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.
- 34. Hot & Cold Environments
- 35. ETHICS IH WORKS FOR, REPORTS TO, & IS PAID BY EMPLOYER. DUTY: PROTECT WORKERS CONFLICTS INEVITABLE
- 36. • 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 Issues
- 39. Some Statistics • Accidents [unintentional injuries], annual, US – 20,000,000 disabling injuries – 100,000 deaths – 500,000 hospitalizations – 4,000,000 ER visits
- 40. Why Learn about IH • Prevent injury and illness! • 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
- 41. 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”