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Industrial Hygiene Approach to EHS Issues in Schools: Assessment, Controls, Design, and Prevention

Industrial Hygiene Approach to EHS Issues in Schools: Assessment, Controls, Design, and Prevention. Lorraine M. Conroy, ScD, CIH Associate Professor University of Illinois at Chicago School of Public Health. April 6, 2002. Prevention. What are we preventing?. Prevention.

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Industrial Hygiene Approach to EHS Issues in Schools: Assessment, Controls, Design, and Prevention

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  1. Industrial Hygiene Approach to EHS Issues in Schools: Assessment, Controls, Design, and Prevention Lorraine M. Conroy, ScD, CIH Associate Professor University of Illinois at Chicago School of Public Health April 6, 2002

  2. Prevention • What are we preventing?

  3. Prevention • What are we preventing? • Injuries and Illnesses • Exposure

  4. Prevention • How are we preventing injuries and Illnesses? • Early Identification and Treatment (medical) • Exposure Elimination or Reduction (industrial hygiene)

  5. Industrial Hygiene • What is Industrial Hygiene?

  6. Industrial Hygiene • What is Industrial Hygiene? • Anticipation, Recognition, Evaluation, and Control of hazardous substances or agents

  7. Industrial Hygiene • Anticipation • what are potential hazards that may be introduced with processes or products? • Recognition • what are potential hazards in the workplace? • Evaluation • how severe are the potential hazards? Are the potential hazards truly hazardous? • Control • how can potential health hazards be eliminated or minimized?

  8. Hazard Anticipation • Obtain the process flow chart or description • Obtain ingredient and product information • Read the equipment descriptions • Study the building and process design plans • Identify exposures to toxic agents • Anticipate exposure hazards during normal conditions and process upsets • Consider the potential health effects

  9. Hazard Recognition • Sketch the floor plan • Identify the hazard sources • Place the sources on the plan • Place the receivers on the plan • Show the pathways between them • Consider the potential health effects

  10. Workplace Characterization • What is the process? • Activities? • Raw materials? • Products? • By-products? • Waste products? • Processing aids?

  11. Workforce Characterization • job title / job description • task analysis • exposure duration • shift length; continuous • number of workers / community members / family members • other considerations • children

  12. Characterization of Agents • Form of agent • chemical • physical • biological • Health effects • toxicology • epidemiology • Exposure Limits • occupational • environmental • children

  13. Characterization of Agents • Health Effects • Sources of Information • Material Safety Data Sheets (MSDS) • Toxicology Literature • Epidemiology Literature • Internet

  14. Hazard Evaluation • Qualitative Exposure Assessment • Quantitative Exposure Assessment • Is the exposure acceptable?

  15. Exposure Limits • Regulatory • Occupational Safety and Health Administration • Environmental Protection Agency • Nuclear Regulatory Commission • State and Local Health Departments • Non-regulatory

  16. Hazard Control • Hierarchy of Controls

  17. Source Controls • Substitution • Process Change • Process Enclosure • Process Isolation • Wet Methods • Local Exhaust Ventilation • Adequate Maintenance Program

  18. Pathway Controls • Housekeeping • General Exhaust Ventilation • Dilution Ventilation • Distance • Continuous Area Monitoring • Adequate Maintenance Program

  19. Receiver (Worker) Controls • Training & Education • Rotation • Enclosure of Worker • Personal Monitoring Devices • Personal Protective Devices • Adequate Maintenance Program

  20. Hazard Control • Advantages • Source • Pathway • Receiver • Limitations • Source • Pathway • Receiver

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