Steve Tschopp, a scientist working with the Department of Homeland Security, tested the concentration of gas on a T platform.
(Matthew J. Lee/Globe Staff)
Tests look at flow of gases in subway
Scientists study how toxins would spread in an attack
Steve Tschopp, a scientist working with the Department of Homeland Security, tested the concentration of gas on a T platform.
(Matthew J. Lee/Globe Staff)
Scientists working with the US Department of Homeland Security kicked off a weeklong experiment yesterday in which they are releasing nontoxic gases and particles into Boston’s subway system to see how contaminants might spread during a terror attack or other emergency. (Full article: 604 words)
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