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Indoor Environment Program


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									Indoor Environment Program

    Presented By Gary Jefferis
       Spring 1994
Closed School for 6 weeks

               School has history of
               people feeling ill
               Classroom effected
               two days in a row
                 Could not identify
                 the cause
   No baseline for comparison
   No standards or established criteria
    Agencies unwilling to establish recommended
   What to test for?
    Consultants want to test for everything
   Volunteer “Experts” came with own agendas
   Could not clearly identify a single issue

Carbon Dioxide levels
Modified HVAC systems
Let staff open windows
Respiratory Particulant
Replaced carpet with hard surfaces
Cleaned HVAC system
Total VOC’s
Changed all cleaners to green label products
No big smoking gun/lots of small issues
   $150,000 - Tests/consultants
    $85,000 - Floor coverings
   $100,000 - HVAC renovation
    $75,000 - Reoccupation plan

 = $400,000 - Final (not including cost to relocate
                     school for six weeks)
Moved back in the fall of 1994/95 school year
Planning For The Future
How to never experience this issue again?
    Review everything that becomes an
    issue during the event

    Gather data on indoor environment

    Review how to establish baselines

    Gather data in preparation to establish
    performance criterias
 Developed District-Wide
 Management structure
   Reporting of concerns
   Reporting Results
 Standards/Performance criteria
 Preventive measures
   Management Structure
A successful program
requires a “chain of
 The chain of command is
 responsible to keep all
 parties apprised of indoor
 environmental concerns
 and/or related action in
 response to concern
    District Indoor Environment
  Director of Maintenance & Operations shall be responsible
  for the overall administration of the Everett School
  District's indoor environmental program. The primary
  responsibilities of this position with respect to the
  management of the program are:
 Establish and maintain a system to document
  building occupant
 Coordinate response actions to building occupant
 Schedule periodic surveillance monitoring of District
 Provide training for personnel as required
 Oversee work practices for cleaning and maintenance
   Assistant Indoor Environment
The custodial and maintenance supervisors will serve as
assistants to the program manager. The duties of these positions
will primarily focus on daily operations that require attention to
indoor environmental activities.
The primary responsibilities of these positions, with respect to
the program, are:
 – Inform the program manager of building occupants’ concerns
    and/or potential indoor environment concerns
 – Review work requests and/or issue work orders to maintain the
    indoor environment
 – Develop and supervise cleaning standards
 – Review cleaners, chemicals, etc. used by custodial and
    maintenance staff
 – Coordinate and schedule environment-specific work requests
    with other routine maintenance and cleaning operations
    Site Indoor Environment
The site administrators and/or building
managers are site specific. The duties of
these positions are:
 Assure that Material Safety Data Sheets (MSDS)
  are on file at the site for products used in the
 Approve all products used at the site to assure
  against contamination of the indoor
 Review health concerns related to indoor
  environment at the facility
 Meet and confer with staff, students and/or
  parents on matters pertaining to the site’s
  indoor environment
       Maintenance Personnel
Maintenance personnel shall utilize work
practices that avoid releasing irritants into the
air that can affect building occupants. The
primary responsibilities of maintenance
personnel with respect to the indoor
environment program include:
  Report any occurrence to the program
   manager where irritants are released or
  Utilize engineering controls and work practices
   that guard against release of irritants that
   could affect building occupants
              Custodial Staff
Custodial staff shall employ cleaning procedures and
cleaners/chemicals that protect the indoor environment.
The primary responsibilities of the custodial staff with
respect to the indoor environment program include:

  Use cleaning procedures that control dust, mold and
  bacteria build ups while not placing irritants in the air
  Maintain the comfort zone for the building occupants
  Monitor and change air filters
  Replace lights as required
  Report any items that require repair and that affect
  the indoor environment to central maintenance
          Occupant Symptoms Related To
             Environmental Stressors
Stressors are air contaminants or physical factors that
influence occupant comfort and health

      Symptom            Thermal   Air Quality   Lighting   Noise
Headache                                                  
Dizziness                                                 
Drowsiness                                                
Fatigue                                                   
Nausea                                                    
Eye Irritation                                      
Respiratory Irritation                
      Indoor Environment Facility Concern
Date:   ________________                Time:           ______________
School: ________________                Room#/Location: ______________
Name: ________________


By:__________________________           Date:   ____________________
                                        Time:   ____________________

Org: Site
cc: Maintenance
           Indoor Environment Health Concern Form
                                    (for staff and nurse)


Place and Time of Concern:




Additional Comments:

Completed by:

Please describe complaint in as much detail as possible, including symptoms, length of
time symptoms experienced, and how resolved.
             Ventilation Criteria

            Outdoor Air Requirement
Classrooms             15 cfm/person
Libraries              15 cfm/person
Offices                20 cfm/person
Laboratories           20 cfm/person
Auditoriums            15 cfm/person
            Relative Humidity

Relative humidity   30 to 50 percent (winter)
                    40 to 60 percent (summer)
   Indoor Criteria for Contaminants
             Contaminant                     IAQ Criteria
Carbon dioxide                          1000 ppm
Carbon monoxide                         5 ppm
Respirable suspended particulate (PM10) 50 µg/m3
Volatile organic compounds                 300 µg/m3
Formaldehyde                               0.1 ppm
Cat Allergen (felis domesticus)            8 µg/g of dust
Dog Allergen (canis familiarus)            10 µg/g of dust
Dust Mite Allergens (dermatophagoides      2 µg/g of dust
farinae and pteronyssinus)
Cockroach allergen (blattella germanica)   2 units/gram of dust
                       Preventive Measures
       Material or Product                  Maximum VOC Emissions
Flooring materials                      0.60 mg/hr per m2
Floor coatings a                        0.60 mg/hr per m2
Wall materials                          0.40 mg/hr per m2
Wall coatings a                         0.40 mg/hr per m2
Moveable partitions                     0.40 mg/hr per m2
Office furniture                        2.50 mg/hr per m2
Office machines (central)               0.25 mg/hr per m3 of space
Office machines (personal)              0.10 mg/hr per workstation
•Heating, ventilating and air conditioning commissioning
•Ventilation system performance
•Indoor contaminant control
•Maintenance and house keeping controls
•Routine monitoring/testing
          Facility Baseline
Develop a sound, healthy building baseline
for each facility
 Understand activities that occur in the facility
 Record some general test data
 Record some general student absenteeism

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