Thursday's live program at Woodbine Racetrack outside Toronto has been cancelled on account of poor air quality, officials from Woodbine Entertainment said in a release.The air quality index for Toronto as reported by Environment Canada is listed as 'high risk' and was expected to remain that way over the course of the entire day. The decision to cancel, 'made in the best interests of the health and safety of our horses and racing participants,' was arrived at in consultation with the local HBPA and the Alcohol and Gaming Commission of Ontario (AGCO) and is consistent with the AGC air quality guidelines.Smoke from Canadian wildfires was forecast to affect areas of the northeastern United States on Thursday as well, with the National Weather Service office near Mount Holly, New Jersey, indicating that some of that smoke could mix to the surface in Greater Philadelphia.Woodbine will look to provide racing opportunities for Thursday's cancelled races on this Sunday's card and into next week.The next card of live racing is scheduled for Friday afternoon at 1 p.m.The post Poor Air Quality Prompts Woodbine Cancellation appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.