The Winnipeg Jazz Orchestra (WJO) postponed its Sunday concert because of health risks posed by smoke in the air. In a media release issued Sunday, the orchestra said the July 20 performance has been postponed. “Due to the health risks of smoke, the concert on Sunday, July 20 has been postponed. More information will be available soon,” the release said. “WJO woodwind specialist and composer Sean Irvine will present Kind Neighbours at a later date — please wait for further information,” it added. The concert, part of WJO’s summer series, was scheduled for 7 p.m. Sunday and was set to feature music by artists including Joni Mitchell, Lisa Hannigan and Adele, performed by vocalist Karly Epp.