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Scientists Are Testing Odorless Gasses and Particles on the Orange Line This Week

As part of Homeland Security tests, scientists will be sending odorless gasses and particles through the T. The experiments, which the government says are safe, are aimed at understanding chemical and biological attacks.

You might see lab-coated technicians and scientific equipment on the subways through Aug. 5, as government officials test our understanding of chemical and biological attacks.

Officials say not to be alarmed. They will be releasing odorless gasses and particles at 20 stations in an effort to map how actual pathogens might move through the T and, perhaps, onto the streets of Boston.

A handful of downtown Green Line trains are involved, which some Brookline commuters may pass through while traveling. 

These tests are different from previously-announced ones in which a to check biological attack sensors. The bacteria-based tests, to be done when the T isn't running, are scheduled for later this summer.

The gas and particle tests will take place mostly during off-peak hours.

Here is a list of stations where the testing is being done:

  • Downtown Crossing (orange)
  • State (orange)
  • Haymarket (orange)
  • North Station
  • Downtown Crossing (red)
  • Davis
  • Harvard
  • Kendall
  • Park (red)
  • South Station
  • Andrew
  • New England Med Cntr
  • Haymarket (green)
  • Government Center (green)
  • Park (green)
  • Boylston
  • Copley
  • Government Center (blue)
  • State (blue)
  • Aquarium

For more on the tests being done through Aug. 5, please visit these articles at BostonInno and the Boston Globe.

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