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CH3041
ON-LINE LECTURE 25
INDOOR POLLUTION
• An indoor
air
environment may have
higher concentrations
of pollutants than the
local outdoor air.
environment may have
higher concentrations
of pollutants than the
local outdoor air.
• With indoor air
trapping of pollutants
occurs due to the
designed air exchange rate for the building.
JCU 10 exch. h-1 Strasbourg 0.5 exch. h-1
trapping of pollutants
occurs due to the
designed air exchange rate for the building.
JCU 10 exch. h-1 Strasbourg 0.5 exch. h-1
Ø Sources of indoor
air pollutants include:
vCombustion: heating, cooking - CO, part.
vCleaning: solvents, NH3, Cl2,
vPhotocopiers:
O3
Outside air: infiltration
carcinogen
