1. The 3 I’s of Classroom IEQ Gerald Lamping Director for IAQ
2. What factors affect the classroom environmental conditions The three causes for poor classroom environmental quality
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4. Sources of the I’s Infiltration dust and gases enter from open penetrations
5. Which is the culprit ??? Invisible Particles Irritants Infection Tobacco smoke Gases Colds / sinusitis Pollen Perfumes Flu Molds lotions, hair spray, aerosol Poor hygiene Combustion Exhaust Ozone practices Fibers Animals Dander Chemicals in and out of the classroom markers paints, science supplies Cockroaches Strong Odors Snacks attract pests air fresheners, off gassing Dusts Dust Mite Carpet, stuffed animals, Pillows, curtains, air vents chalk, cushions, ‘fluffy’ stuff
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10. Particle Size & Quantity Matters An increase in 10 micrograms per cubic meter of indoor course particle pollution, there is a 6 % increase in the number of days of cough, wheeze, or chest tightness in asthmatic children. An increase in 10 micrograms per cubic meter of indoor fine particle pollution there is a 7 % increase in days of wheezing severe enough to limit speech. Johns Hopkins University School of Medicine February 2009
11. Hand Held Particle Counter Six Channels of Particle Sizes from .3 to 10 Micrometers in diameter
27. Total VOC levels reduced from 60 ppm in Girls Dance Studio to less than 25 ppm using gas phase filters in the Air Handling Unit for the Studio VOC removal after Construction Activities
31. Unsealed Penetrations Contaminated air flows through unsealed penetrations for pipe, conduit and duct into the return air conveyance system of HVAC
35. Healthy School Building www.cdc.gov/healthyyouth/asthma/index.htm CDC Asthma Friendly School Toolkit www.asbointl.org ASBO International Environmental Resource Center www.purafil.com EnerSave IAQ Analysis www.ashrae.org ASHRAE Std 62.1-2007 and Addenda Ventilation for Acceptable Indoor Air Quality www.epa.gov/iaq/schools EPA Tools for Schools Toolkit
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37. Carpet Removal Program Replaced over 30,000 square feet of carpet with new VCT tile over the 2008 summer
38. Green Cleaning Cleaning Chemicals and Dispensing Systems that do not contain harmful ingredients and vapors
44. Earth Retainer Block Repair Damaged Earth Retainer Blocks around perimeter of building allow storm water and animals to get access under the building