A controlled burn will be held in a small area within the Yarramundi Grasslands on Saturday.
It will be conducted by firefighters from the ACT Rural Fire Service to reduce fuel load as well as the number of exotic weeds in the area.
People with asthma or other chronic respiratory diseases should avoid exercising and should stay indoors if affected by smoke, ACT Health said.
The burn will be held in an area next to Lady Denman Drive, southeast of the ATSI centre.
Timing will be determined by weather conditions.