BOSTON (FOX 25 / MyFoxBoston.com) The Department of Homeland Security is expected to continue a study in Boston on Saturday of the possible impact an airborne contaminant would have on the MBTA and surrounding urban areas.
Saturday marks the third phase of the DHS and the Science and Technology Directorate's airflow study throughout the underground portion of the MBTA.
During these tests, officials release non-toxic, odorless gas, as well as particle tracers near the entrances and exits to the subway. Officials say the study is part of the Department of Homeland Security's "ongoing commitment to preparedness and the shared responsibility to protect our nation's critical infrastructure."
The drill is scheduled for 2 p.m. at the Park Street entrance near the Boston Common.
