A SMOKE alert has been issued for Gingin and Muchea townsites in the shires of Gingin and Chittering by the Department of Parks and Wildlife.
The department said the alert, issued at 3.53pm on Sunday, October 22, included areas surrounding both townsites.
The smoke is the result of a prescribed burn carried out today in the Pinjar pine plantation.
The smoke is expected to clear by this evening.
If the smoke is particularly thick, it is recommended people shut doors and windows and turn off air-conditioners.
Smoke may reduce visibility on some roads and motorists should take care, turn on headlights and travel at appropriate speeds when travelling in these areas.
People with asthma and pre-existing respiratory or cardiovascular illnesses should follow their pre-prepared treatment plan.
People with conditions exacerbated by smoke should take precautions in line with their medical advice for these circumstances.
To keep up to date visit www.emergency.wa.gov.au, call 13 DFES (13 3337), follow DFES on Twitter: https://twitter.com/dfes_wa, Facebook: https://facebook.com/dfeswa/, listen to ABC Local Radio or listen to news bulletins.
The department said the next update would be issued when the situation changed.