CMAT Key Projects - US EPA
CMAT Key Projects
April 24, 2014
Topics
? Underground Transportation Restoration Project ? CMAT and NHSRC Efforts ? Rad Responder App development ? Trans Atlantic Collaborative Restoration Demonstration
Target: Subways
? CBRNe attacks ? Impact large number of people
? Loss of life ? Economic , social, and political impact
? Piston effect of system to spread contamination ? OEM and NHSRC: focus on response and remediation to anthrax
contamination
? Most difficult to remediate (may go undetected for days, requires rigorous decontamination and sampling to clear)
3
Subway Contamination History
? In 1966, the Army conducted 5 dissemination tests of biological agent simulant in the NY subway system. Agent was dissemination by releasing small amounts of simulant through sidewalk ventilation grates and by dropping simulant-filled light bulbs onto the tracks from moving trains on routes (Lexington Ave., 7th Ave., and 8th Ave)
? Measurements were taken on station platforms and on moving trains for approximately two hours
? Simulant was detected at high levels on trains passing through the contaminated area and on some distance from the release points (Bleeker to 59th Street on the Lexington Ave. line, for example)
? More recent computer modeling also suggests that biological contamination can spread widely due to train and passenger movement within the subway, and also outside the system, carried by exhaust air and contaminated persons
4
Remediation and Reopening Involves a Number of Actions and Decisions
? Measurements to support estimation of contaminated area, rolling stock, and equipment
? Decontamination activities to reduce the concentration of organisms on surfaces and in the air
? Measurements to support estimation that the decontamination activities have lowered the risk of exposure to subway employees and the public after subway reopening to "acceptable" levels
? Exposure can occur from pick up and transfer of agent from deposited contamination and from resuspension of agent due to subway operations
? Other factors will enter into the reopening decision calculus
? The social disruption arising from the cessation of subway operations ? Economic losses ? Public concern regarding residual hazard ? Political influences
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