Environment Canada has issued a smoky skies bulletin for Vanderhoof and the surrounding area.
Smoke from the Dog Creek Trail wildfire northwest of the community is causing poor air quality and reduced visibility.
Forecasters say smoke from the wildfire could impact surrounding communities, depending on fire and wind conditions.
The smoke could cause increased coughing, throat irritation, headaches, or shortness of breath.
Children, seniors, and those with cardiovascular or lung disease are especially at risk.
People with breathing difficulties are advised to find a cool, ventilated indoor space.