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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

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
Prevention
  • What are we preventing?
prevention3
Prevention
  • What are we preventing?
    • Injuries and Illnesses
    • Exposure
prevention4
Prevention
  • How are we preventing injuries and Illnesses?
    • Early Identification and Treatment (medical)
    • Exposure Elimination or Reduction (industrial hygiene)
industrial hygiene
Industrial Hygiene
  • What is Industrial Hygiene?
industrial hygiene6
Industrial Hygiene
  • What is Industrial Hygiene?
    • Anticipation, Recognition, Evaluation, and Control of hazardous substances or agents
industrial hygiene7
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?
hazard anticipation
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
hazard recognition
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
workplace characterization
Workplace Characterization
  • What is the process?
  • Activities?
  • Raw materials?
  • Products?
  • By-products?
  • Waste products?
  • Processing aids?
workforce characterization
Workforce Characterization
  • job title / job description
  • task analysis
  • exposure duration
    • shift length; continuous
  • number of workers / community members / family members
  • other considerations
    • children
slide12

Characterization of Agents

  • Form of agent
    • chemical
    • physical
    • biological
  • Health effects
    • toxicology
    • epidemiology
  • Exposure Limits
    • occupational
    • environmental
    • children
slide13

Characterization of Agents

  • Health Effects
    • Sources of Information
      • Material Safety Data Sheets (MSDS)
      • Toxicology Literature
      • Epidemiology Literature
      • Internet
hazard evaluation
Hazard Evaluation
  • Qualitative Exposure Assessment
  • Quantitative Exposure Assessment
  • Is the exposure acceptable?
slide15

Exposure Limits

  • Regulatory
    • Occupational Safety and Health Administration
    • Environmental Protection Agency
    • Nuclear Regulatory Commission
    • State and Local Health Departments
  • Non-regulatory
hazard control
Hazard Control
  • Hierarchy of Controls
source controls
Source Controls
  • Substitution
  • Process Change
  • Process Enclosure
  • Process Isolation
  • Wet Methods
  • Local Exhaust Ventilation
  • Adequate Maintenance Program
pathway controls
Pathway Controls
  • Housekeeping
  • General Exhaust Ventilation
  • Dilution Ventilation
  • Distance
  • Continuous Area Monitoring
  • Adequate Maintenance Program
receiver worker controls
Receiver (Worker) Controls
  • Training & Education
  • Rotation
  • Enclosure of Worker
  • Personal Monitoring Devices
  • Personal Protective Devices
  • Adequate Maintenance Program
hazard control20
Hazard Control
  • Advantages
    • Source
    • Pathway
    • Receiver
  • Limitations
    • Source
    • Pathway
    • Receiver