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Draft Environmental Assessment: Proposed NYC Simulant Particle Releases for the Viral Phenomenology Program

The Department of Homeland Security (DHS) Science and Technology Directorate (S&T) plans to conduct a scientific study on aerosol behavior in New York City buses and subway trains. The study will be performed on several buses and subway trains that do not have commuters or other riders from the public and will not disrupt normal transit operations. The purpose of this study is to gather data on the behavior of aerosols in public modes of transportation. Testing will occur over approximately seven days in the window between January 25, 2021 and February 5, 2021. A special focus of the study will be tests of various methods to mitigate the potential spread of aerosols in buses and subway trains.

This study is part of the Department’s ongoing commitment to the safety of the public when using vital modes of transportation. The proposed tests will release non-toxic, inert particle tracers in a controlled fashion in several buses and subway trains to evaluate practical methods to reduce and mitigate airborne concentrations of aerosols. Buses and subway cars will be cleaned at the conclusion of the study. This draft is posted pursuant to the National Environmental Policy Act (NEPA) of 1969 42 U.S.C. 4321 et seq. Questions or comments may be submitted to:

Attachment Ext. Size Date
PDF icon Environmental Assessment of Proposed NYC Simulant Particle Releases pdf 1.16 MB 12/14/2020
Created Date: December 14, 2020
Last Published Date: December 15, 2020
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