"The main surprise was particle pollution in the fan areas around the stadium. For a spectator attending a full day of events, their daily exposure would be more than doubled."
"Particle pollution peaked before each stadium session, and reached a maximum just before the closing ceremony, when it was 10 times greater than other parts of the city."
"The main source was not traffic but catering, which was dominantly fast-food that included burgers, hotdogs and stir-fries."
"Catering pollution was greatest before the opening and closing ceremonies but fell quickly as spectators took their seats."
Large-scale sporting events, such as the Commonwealth Games, have unexpected air pollution impacts. Research showed that particle pollution in fan areas around the stadium doubled daily exposure for spectators. Pollution peaked before stadium sessions and reached ten times higher levels than other city areas before the closing ceremony. The primary source of this pollution was catering, particularly fast food. Pollution patterns varied, with peaks during ceremonies and prolonged exposure during athletics events as spectators frequented catering outlets.
Read at www.theguardian.com
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