Lessons from Multnomah County
07/03/2014
Lessons from Multnomah County --funded by an EPA Healthy Schools Indoor Air Quality grant
Jeff Strang, REHS, HHS Environmental Health Specialist Multnomah County, Oregon [email protected]
1
07/03/2014
What are aspects of schools that impact IAQ?
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07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment 1927
1947
2005
3
07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment Tunnel ventilation fan
Steam boiler
Rooftop air handling unit (RTU)
Unit (room) Ventilator
4
07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment Some air handlers serve 2 adjacent rooms, so
balance (numbers of bodies) is important. Older building restrooms exhaust air by passive venting; may not be adequate with newer, powered air handlers
5
07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment Possible Solutions Periodic walk-throughs Staff surveys
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07/03/2014
Spot the Problem
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07/03/2014
Aspects of schools that impact IAQ: Location of buildings (macro), air intakes (micro) Macro: close to sources of polluted air such as
freeways, factories, farms? Micro: air intakes (including windows) close to vehicle idling areas, air exhausts, dumpsters?
8
07/03/2014
Aspects of schools that impact IAQ: Location of buildings (macro), air intakes (micro) Possible Solutions Good planning Periodic walk-throughs
9
Lessons from Multnomah County --funded by an EPA Healthy Schools Indoor Air Quality grant
Jeff Strang, REHS, HHS Environmental Health Specialist Multnomah County, Oregon [email protected]
1
07/03/2014
What are aspects of schools that impact IAQ?
2
07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment 1927
1947
2005
3
07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment Tunnel ventilation fan
Steam boiler
Rooftop air handling unit (RTU)
Unit (room) Ventilator
4
07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment Some air handlers serve 2 adjacent rooms, so
balance (numbers of bodies) is important. Older building restrooms exhaust air by passive venting; may not be adequate with newer, powered air handlers
5
07/03/2014
Aspects of schools that impact IAQ: Different ages of original building, additions, air handling equipment Possible Solutions Periodic walk-throughs Staff surveys
6
07/03/2014
Spot the Problem
7
07/03/2014
Aspects of schools that impact IAQ: Location of buildings (macro), air intakes (micro) Macro: close to sources of polluted air such as
freeways, factories, farms? Micro: air intakes (including windows) close to vehicle idling areas, air exhausts, dumpsters?
8
07/03/2014
Aspects of schools that impact IAQ: Location of buildings (macro), air intakes (micro) Possible Solutions Good planning Periodic walk-throughs
9
