An Air Quality Advisory has been issued again for Houston and Telkwa.
Air Quality Meteorologist, Barry Watson says this is because of particulate emissions that are being trapped at the surface due to calm winds.
He says people who are sensitive to poor air quality should remain indoors.
Open burning restrictions are also in effect for both communties within 10 kilometres of their respective town halls.
No new outdoor fires may be started and no additional material may be added to existing fires.