Table 1

Summary of microenvironments and the factors that govern how exposure occurs within them

MicroenvironmentsPhysical factorsBehavioural factors
Outdoors14 15 Wind speed, wind directionProximity to smokers
Residences (indoors)16–20 Room volume, window positions, door positions, HVAC* Room location of smoker(s), proximity to smoker(s)
Work/office/public building (indoors)21 Room volume, HVACRoom location of smokers, proximity to smoker(s)
Restaurant/tavern22 Room volume, HVACProximity to smoker(s)
Automobile cabin22 Cabin volume, window position, air conditioning, driving speedArm position, seating position
  • * HVAC, heating, ventilation and air conditioning.