Revises the definition of "air pollution," for purposes of the Washington clean air act, to include an odor or air emission that unreasonably interferes with a person's use or enjoyment of a public park, public recreational facility or trail, or publicly owned commons of a municipal government or state agency, as a result of an odor or air emission that is sufficiently noxious or offensive as to prevent normal use of the facility, or that creates a risk of illness or other adverse health effect as a result of normal use of the facility.

Requires an air quality inspector, on behalf of a clean air act enforcement authority, to act on a complaint when the complaint of an odor or air emission is made to an authority in connection with the use of the areas mentioned above, irrespective of whether the complainant remains at, or has left, the area.