air contamination concern
air quality detection
air quality issue
Arlington County Fire Department
Arlington Fire and EMS
arlington virginia
building lockdown
building occupants
chemical hazard investigation
chemical protective gear
CNN report
corridors four through seven
defense headquarters
developing news
emergency management
emergency protocols
federal facility emergency
federal government building
floors two through five
gas masks
hazardous materials team
hazmat operation
hazmat response
incident response
Pentagon evacuation
Pentagon Force Protection Agency
Pentagon incident
Pentagon lockdown
Pentagon security
PFPA Hazmat Team
precautionary measures
protective measures
Report: Multiple floors in Pentagon on lockdown, ‘hazardous materials incident’
Multiple floors of the Pentagon are on lockdown, while others are being evacuated in response to a “hazardous materials incident,”…