Industrial hygiene approach to ehs issues in schools assessment controls design and prevention
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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 Assessment, Controls, Design, and Prevention

  • What are we preventing?


Prevention1
Prevention Assessment, Controls, Design, and Prevention

  • What are we preventing?

    • Injuries and Illnesses

    • Exposure


Prevention2
Prevention Assessment, Controls, Design, and Prevention

  • How are we preventing injuries and Illnesses?

    • Early Identification and Treatment (medical)

    • Exposure Elimination or Reduction (industrial hygiene)


Industrial hygiene
Industrial Hygiene Assessment, Controls, Design, and Prevention

  • What is Industrial Hygiene?


Industrial hygiene1
Industrial Hygiene Assessment, Controls, Design, and Prevention

  • What is Industrial Hygiene?

    • Anticipation, Recognition, Evaluation, and Control of hazardous substances or agents


Industrial hygiene2
Industrial Hygiene Assessment, Controls, Design, and Prevention

  • 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 Assessment, Controls, Design, and Prevention

  • 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 Assessment, Controls, Design, and Prevention

  • 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 Assessment, Controls, Design, and Prevention

  • What is the process?

  • Activities?

  • Raw materials?

  • Products?

  • By-products?

  • Waste products?

  • Processing aids?


Workforce characterization
Workforce Characterization Assessment, Controls, Design, and Prevention

  • job title / job description

  • task analysis

  • exposure duration

    • shift length; continuous

  • number of workers / community members / family members

  • other considerations

    • children


Characterization of Agents Assessment, Controls, Design, and Prevention

  • Form of agent

    • chemical

    • physical

    • biological

  • Health effects

    • toxicology

    • epidemiology

  • Exposure Limits

    • occupational

    • environmental

    • children


Characterization of Agents Assessment, Controls, Design, and Prevention

  • Health Effects

    • Sources of Information

      • Material Safety Data Sheets (MSDS)

      • Toxicology Literature

      • Epidemiology Literature

      • Internet


Hazard evaluation
Hazard Evaluation Assessment, Controls, Design, and Prevention

  • Qualitative Exposure Assessment

  • Quantitative Exposure Assessment

  • Is the exposure acceptable?


Exposure Limits Assessment, Controls, Design, and Prevention

  • Regulatory

    • Occupational Safety and Health Administration

    • Environmental Protection Agency

    • Nuclear Regulatory Commission

    • State and Local Health Departments

  • Non-regulatory


Hazard control
Hazard Control Assessment, Controls, Design, and Prevention

  • Hierarchy of Controls


Source controls
Source Controls Assessment, Controls, Design, and Prevention

  • Substitution

  • Process Change

  • Process Enclosure

  • Process Isolation

  • Wet Methods

  • Local Exhaust Ventilation

  • Adequate Maintenance Program


Pathway controls
Pathway Controls Assessment, Controls, Design, and Prevention

  • Housekeeping

  • General Exhaust Ventilation

  • Dilution Ventilation

  • Distance

  • Continuous Area Monitoring

  • Adequate Maintenance Program


Receiver worker controls
Receiver (Worker) Controls Assessment, Controls, Design, and Prevention

  • Training & Education

  • Rotation

  • Enclosure of Worker

  • Personal Monitoring Devices

  • Personal Protective Devices

  • Adequate Maintenance Program


Hazard control1
Hazard Control Assessment, Controls, Design, and Prevention

  • Advantages

    • Source

    • Pathway

    • Receiver

  • Limitations

    • Source

    • Pathway

    • Receiver


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