INDOOR AIR QUALITY
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Transcript of INDOOR AIR QUALITY
INDOOR AIR QUALITY
A CUSTODIAL APPROACHA CUSTODIAL APPROACH
Presented By:Presented By:
KENWAY DISTRIBUTORSKENWAY DISTRIBUTORS
Causes of IAQ Problems
Reduced Reduced VentilationVentilation
DampnessDampness
InadequateInadequate
MaintenanceMaintenance
Since the energy crisis of the 70’s,
buildings are built tighter ... have
less ventilation...
and common pollutants are
trapped inside.
Why is IAQ a Problem?
EPA STUDIES SHOW THAT INDOOR POLLUTANTS ARE 10 –100 TIMES GREATER THAN OUTDOOR
Why is IAQ a Problem?
AMERICANS SPEND 80% - 90% OF THEIR TIME INDOORS
COST OF EMPLOYEE ABSENTEEISM IS ESTIMATED BETWEEN $6 - $9 BILLION EACH YEAR
Why is IAQ a Problem?
Indoor Air Indoor Air In Schools In Schools
“ Aging schools are our biggest problem now.”
“1 in 10 schools have health problems reported by students and employees.”
GAO Report GAO Report
• IAQ to be a problem in 1 in 5 schools.IAQ to be a problem in 1 in 5 schools.• Inadequate ventilation in 35% of Inadequate ventilation in 35% of
schools.schools.• Persistent leaks in 26% of schools.Persistent leaks in 26% of schools.
A survey of 10,000 A survey of 10,000 U.S. schools U.S. schools found ...found ...
“ “Long ago the schools Long ago the schools cut backcut back
on maintenance; on maintenance; now there are health problems now there are health problems
caused by leaking roofs ... caused by leaking roofs ... water seepage ... and mold.”water seepage ... and mold.”
HEALTH EFFECTS OF IAQ
SICK BUILDING SYNDROMESICK BUILDING SYNDROME HEADACHES, FATIGUE, NAUSEAHEADACHES, FATIGUE, NAUSEA ITCHING / BURNING EYES, SKINITCHING / BURNING EYES, SKIN IRRITATION, NASAL CONGESTION IRRITATION, NASAL CONGESTION AND IRRITATED THROATAND IRRITATED THROAT BUILDING RELATED ILLNESSESBUILDING RELATED ILLNESSES RESPIRATORY ALLERGIESRESPIRATORY ALLERGIES LEGIONNAIRES DISEASELEGIONNAIRES DISEASE
NIOSH
NATIONAL INSTITUTE OF NATIONAL INSTITUTE OF OCCUPATIONAL SAFETY & HEALTHOCCUPATIONAL SAFETY & HEALTH
SURVEYED 480 BUILDINGS AND SURVEYED 480 BUILDINGS AND SITED FIVE MAIN AREAS OF SITED FIVE MAIN AREAS OF
CONCERNCONCERN
NIOSH SURVEY
INADEQUATE VENTILATIONINADEQUATE VENTILATION INDOOR CONTAMINATESINDOOR CONTAMINATES OUTSIDE ACTIVITIESOUTSIDE ACTIVITIES INDOOR MOISTUREINDOOR MOISTURE BUILDING MATERIALSBUILDING MATERIALS
INADEQUATE VENTILATIONNew Construction:Reduced Air Exchange...80% of HVAC Systemsare improperly installed and maintained
IAQ
INDOOR CONTAMINATESINDOOR CONTAMINATES
Common PollutantsBecome Trapped Indoors
Odors (VOCs)Odors (VOCs)
DustDust
Allergens Allergens
(biological)(biological)
Chemical Odors (VOCs)
• Paint, varnish, solventsPaint, varnish, solvents• Glues, adhesivesGlues, adhesives• Cleaning chemicalsCleaning chemicals• Particle boardParticle board• Tobacco smokeTobacco smoke• Auto exhaustAuto exhaust• Gasoline fumesGasoline fumes
How to Reduce VOCsREMOVE SOURCEREMOVE SOURCE
Mix Chemicals Properly – Use Mix Chemicals Properly – Use Proportioning EquipmentProportioning Equipment
Use - User Friendly Chemicals Use - User Friendly Chemicals (Green)(Green)
Do not mix several Chemicals Do not mix several Chemicals togethertogether
Always Clean EquipmentAlways Clean EquipmentDo not leave Containers openDo not leave Containers openAlways Clean and dry mopsAlways Clean and dry mops
Precautions During Special Cleaning Procedures
STRIPPING HARD FLOORSSTRIPPING HARD FLOORS Make everyone aware special Make everyone aware special
procedures are being performedprocedures are being performed Make sure there is proper ventilationMake sure there is proper ventilation Dilute strippers properlyDilute strippers properly Only dilute the amount of stripper Only dilute the amount of stripper
that will be usedthat will be used
Precautions During Special Cleaning Procedures
Shampooing and Wet ExtractingShampooing and Wet Extracting Make everyone aware special Make everyone aware special
procedures are being performedprocedures are being performed Make sure there is proper ventilationMake sure there is proper ventilation Dilute products properlyDilute products properly Let carpet dry completelyLet carpet dry completely Vacuuming carpet when dry is Vacuuming carpet when dry is
critical to IAQcritical to IAQ
Odor SOURCES In RestroomsOdor SOURCES In Restrooms
BacteriaBacteria Human & Natural odorsHuman & Natural odors UrineUrine DrainsDrains Maintenance odors Maintenance odors Stale air, caulking,Stale air, caulking, tile replacement andtile replacement and replacing groutreplacing grout
ProblemsProblems
Clogs and blockagesClogs and blockages Slow DrainsSlow Drains OdorOdor
Drain Maintenance
How to Reduce VOCs
IF WE CAN’T REMOVE THE SOURCE WE NEED TO MODIFY
THE SOURCE
Increase VentilationClean Vents for good
air flow
DUST
What is Dust?
ash, soot, dirt cotton, paper, fibers asbestos, fiberglass paint, metal, mineral plaster, chalk dander, pollen, spores
Anything small enough to float in air.
Size of Airborne Dust
Very small (1 - 100 microns)
1/100,000 to 1/10,000 inch
Cannot be seen by
“naked eye”
WALKS
in the
door
Over 85% of Building Dust
To Reduce Dust
Walk off Mats Filters, filters, filters... Treated Dust Cloths Dust Mopping Always dust mop after
buffing Dust air vents Effective Vacuuming with good vacuum
Top Indoor Allergens Top Indoor Allergens
Dust Mites & CockroachesDust Mites & CockroachesMold - airborne sporesMold - airborne spores
Cats & Dogs - airborne Cats & Dogs - airborne
danderdander
YOU CAN’T SEEYOU CAN’T SEEALLERGENS ...ALLERGENS ...
you can only seeyou can only see
the reactions to them.the reactions to them.
Allergic Allergic ReactionReactionss sneezingsneezing runny nose runny nose congestioncongestion headacheheadache fatigue fatigue nauseanausea sore throatsore throat asthma asthma
attackattack
HOUSE DUST MITESFOUND IN mattresses, pillows,
upholstered chairs and carpet..
TO REDUCE DUST MITES
Effective VacuumingUse Tools to Vacuum
UpholsteryChange Vac Bag when
neededKeep Vacuums Clean
COCKROACHES
Found in food areas, Found in food areas, grease traps … and grease traps … and in general in general distribution around distribution around food service areas.food service areas.
TO REDUCE COCKROACHES
Remove Protein and Food Source
Clean, Clean, CleanHave Infested area
Treated
MOLD
The most common The most common indoor allergenindoor allergen
Grows on any damp Grows on any damp surfacesurface
Growth begins in Growth begins in only 24 hoursonly 24 hours
Optimal conditions, Optimal conditions, 77 to 88 degrees F, 77 to 88 degrees F, 70 to 93% humidity70 to 93% humidity
Like all plants and animalsLike all plants and animals,mold needs moisturemold needs moisture..
Indoor Mold Spores are Normal
They come from They come from
the outside air.the outside air.
Indoor levelsIndoor levels
should be less should be less thanthan
outdoor levelsoutdoor levels..
There is poor There is poor ventilation , orventilation , or
There is indoorThere is indoor
growth.growth.
MOLD grows on
any damp surface.
If Mold Spores are Higher Inside ...
Roof LeaksRoof Leaks Wet pipesWet pipes Humid airHumid air CondensationCondensation Cooking/Baths Cooking/Baths Damp Damp
basementsbasements
Indoor Moisture Indoor Moisture comes comes from ...from ...
Control Biological Control Biological GrowthGrowth
Attack the SourceAttack the Source Keep all surfaces clean – The Keep all surfaces clean – The
slightest amount of soil is a slightest amount of soil is a medium for mold to growmedium for mold to grow
Limit or prohibit smokingLimit or prohibit smoking Pick up water spills & leaks Pick up water spills & leaks
promptly – should be dry within promptly – should be dry within 24 hours24 hours
Maintain indoor plants properlyMaintain indoor plants properly
Control Biological Control Biological GrowthGrowth
Attack the SourceAttack the Source Maintain HVAC system properly Maintain HVAC system properly
- clean and sanitize regularly- clean and sanitize regularly Don’t block supply vents or Don’t block supply vents or
return grillsreturn grills Provide adequate supply of non Provide adequate supply of non
polluted outdoor airpolluted outdoor air Keep temperatures below Keep temperatures below
optimal rangeoptimal range
Control Condensation – Proper Control Condensation – Proper Drainage / Pan StripsDrainage / Pan Strips
Keep relative humidity Keep relative humidity
below 50%below 50%
Control Biological Control Biological GrowthGrowth
Attack the SourceAttack the Source
Control Condensation – Proper Control Condensation – Proper Drainage / Pan StripsDrainage / Pan Strips
Keep relative humidity Keep relative humidity
below 50% - Use Dehumidifiers below 50% - Use Dehumidifiers
IAQ Research Conclusions IAQ complaints in IAQ complaints in
classrooms are classrooms are
related to high related to high relative humidity.relative humidity.
Carpet ...Carpet ...
is is not related not related
to IAQ complaints.to IAQ complaints.
IAQ Research Conclusions
Carpet traps and Carpet traps and
holds allergens.holds allergens.
There is There is no no releaserelease
of allergens of allergens
from carpet.from carpet.
Carpet is a benefit Carpet is a benefit
for indoor air. for indoor air.
Airborne allergens eventually fall down.
Allergens Stay Down
remain trapped in carpet fibers ...
One HOST cleaning removes : Dust mites - 78%Dust mites - 78% Dust mite allergen - Dust mite allergen -
75%75% Cat Allergen - 85%Cat Allergen - 85% Mold Spores - 85%Mold Spores - 85% Bacteria is also Bacteria is also
reduced reduced dramaticallydramatically
Thank YouTHE END