Workers on Thursday detected a trace level of mustard gas vapor inside a storage igloo at the U.S. Army Pueblo Chemical Depot.
“At no time were workers at the depot or members of the surrounding communities in any danger,” according to a media release from the depot.
The Pueblo depot is one of six Army installations in the United States that store chemical weapons.
The vapor was detected at about 10:20 a.m. Thursday.
A charcoal filter was attached to an air vent on the back of the storage structure, the depot said. The air filtration unit cleans the air inside the igloo by forcing the air through carbon filters.
“Additional information will be provided as soon as it is received,” the release said.
County and state officials were notified of the situation, the depot said.
Kieran Nicholson: 303-954-1822 or knicholson@denverpost.com.
