【法】 airborne pollutant
air; airspace; atmosphere
【化】 air
【医】 aer-; aero-; air; physo-
promulgate; propagate; diffuse; disperse; disseminate; monger; radiate; spread
transmit
【医】 phoro-; propagate; propagation; transmission
【经】 circulation
【计】 contaminant
【医】 contaminant; fomes; fomite; fomites