Environment Canada has once again issued a special air quality statement for the North Bay area. …Environment Canada says smoke is causing or expected to cause poor air quality and reduced visibility. “Smoke from forest fires over northern Ontario is causing poor air quality that may persist throughout the day for some areas,” EC stated. “As smoke levels increase, health risks increase. Limit time outdoors. Consider reducing or rescheduling outdoor sports, activities and events. …EC suggests when indoors, keep windows and doors closed as much as possible. “Protect your indoor air from wildfire smoke. Actions can include using a clean, good quality air filter in your ventilation system and/or a certified portable air cleaner that can filter fine particles.