From Denver’s 7News:
Denver firefighters were called to the main terminal at Denver International Airport on Tuesday morning to investigate an odor.
Someone reported a burning smell on level 6 of the main terminal at 10:48 a.m.
Several people said the smell gave them a coughing fit. Airport officials said those people were moved and did not need medical treatment.
Firefighters said they ventilated the area, but did not find the source of the smell.
This isn’t the first time DIA has faced complaints over strange odors.
In 2003, employees filed a class action lawsuit against the airport over claims that a toxic cocktail of mold and chemicals emanating from underground maintenance areas caused them health problems. (See image right.)
That lawsuit was ultimately dismissed. Not saying these two incidents are connected, but there you go.