Woodbine Entertainment and Delaware Park have cancelled their respective live Thoroughbred racing programs due to poor air quality caused by extensive wildfires in Canada, the tracks said in press releases on Friday morning.After shelving Thursday's card, Woodbine said that Environment Canada's air quality index for Toronto is again listed as 'High Risk' and is expected to remain at this level throughout Friday.Canada's Thoroughbred track added that the decision to cancel comes through consultation with the HBPA, the Jockeys' Guild and the Alcohol and Gaming Commission of Ontario (AGCO), and is consistent with the AGCO's air quality guidelines.The cancellation has been made in the best interests of the health and safety of the horses and racing participants.Woodbine said that they would be looking at the possibility of additional racing opportunities in the coming days for Friday's cancelled races.According to the website IQAir, which tracks air quality, the numbers for Wilmington, Delaware throughout Friday were rated as “unhealthy.”Live racing is scheduled to resume at both tracks on Saturday afternoon.The post Poor Air Quality Levels Nix Racing At Woodbine And Delaware On Friday appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.