Addressing Monday’s games, Pat Courtney, a spokesman for M.L.B., said the league had monitored the situation all day with medical experts — and was in contact with both clubs — while consulting with multiple air quality experts in making the determination about whether or not to play.
On Tuesday, with AirNow reporting an A.Q.I. of 241 at 4 p.m. Eastern time, the conditions were determined to be too dangerous to risk.
Oakland and Seattle split the doubleheader on Monday, with the Mariners winning the first game, 6-5, and the A’s taking the second, 9-0.
Seattle center fielder Kyle Lewis, who robbed Ramon Laureano of a potential grand slam in the first inning of the second game, talked afterward about the strange scene.
“I think it was OK breathing, but we definitely noticed it,” Lewis told reporters. “The sky was all foggy and smoky; it definitely wasn’t a normal situation, definitely a little weird.’”