Residential Indoor Air Residential Indoor Air QualityQuality

bybyJohn Martyny, Ph.D., CIHJohn Martyny, Ph.D., CIH

National Jewish Medical and Research National Jewish Medical and Research CenterCenter

Factors Effecting Factors Effecting Residential IAQResidential IAQ

• Heating and Ventilating SystemHeating and Ventilating System• Energy SourcesEnergy Sources• Construction TypeConstruction Type• Residence LocationResidence Location• Occupant ActivitiesOccupant Activities

Heating and Ventilating Heating and Ventilating SystemSystem

• Type of SystemType of System• Radiant Heat vrs Forced AirRadiant Heat vrs Forced Air• Hot WaterHot Water

• Condition of SystemCondition of System• Filter ChangeFilter Change• Vent Condition – CO and COVent Condition – CO and CO22

• Air ConditioningAir Conditioning• MoistureMoisture• HumidityHumidity

Energy SourcesEnergy Sources• Fossil Fuel CombustionFossil Fuel Combustion

• Carbon MonoxideCarbon Monoxide• Oxides of NitrogenOxides of Nitrogen• Vented vs. Un-ventedVented vs. Un-vented

• ElectricalElectrical• Typically lower emission ratesTypically lower emission rates

• Space HeatingSpace Heating• Vented vs. un-ventedVented vs. un-vented

Construction TypeConstruction Type• CrawlspacesCrawlspaces

• Moisture and Mold ConcernsMoisture and Mold Concerns• Ventilation ConcernsVentilation Concerns

• EmissionsEmissions• FurnitureFurniture• CarpetingCarpeting• InsulationInsulation

• Water InfiltrationWater Infiltration• TightnessTightness• Attached GarageAttached Garage

Residence LocationResidence Location• SettingSetting

• Rural vs. UrbanRural vs. Urban• Distance to TrafficDistance to Traffic

• COCO• Diesel ParticulateDiesel Particulate

• ClimateClimate• HumidityHumidity• Air ConditioningAir Conditioning

Occupant ActivitiesOccupant Activities• Smoking HabitsSmoking Habits• HobbiesHobbies

• Wood WorkingWood Working• PotteryPottery• SculptureSculpture

• PetsPets• Pesticide UsagePesticide Usage

Control MeasuresControl Measures• Use of HEPA vacuum cleanersUse of HEPA vacuum cleaners• Whole house vacuum systemWhole house vacuum system• Furnace filter upgradesFurnace filter upgrades• Reduction of fleecy materialsReduction of fleecy materials• Low emission productsLow emission products• Damp cleaningDamp cleaning• No smoking insideNo smoking inside• Hobby dust and emission controlHobby dust and emission control• Moisture controlMoisture control

Questionable Control Questionable Control MethodsMethods

• Ozone generatorsOzone generators• Ion generatorsIon generators• HEPA filtersHEPA filters• Duct cleaningDuct cleaning