Subway-Surface Air Flow Exchange

Amid Air Flow Tests, CBS 2 Learns Of Ventilation System Protecting NYCThe NYPD and the Brookhaven National Laboratory installed air sampling equipment on Tuesday to study how chemical weapons could be dispersed through the city's subway system.
200 Sampling Devices To Be Set Up Across NYC For Airflow StudyThe NYPD and Brookhaven National Laboratory will conduct the Subway-Surface Air Flow Exchange in spots across all five boroughs beginning at 8 a.m. Air sampling and related equipment will be installed starting around 6 a.m., officials said.
NYC Airflow Study This Summer To Look At Spread Of ContaminantsThe goal is to better understand the risks posted by airborne contaminants, such as chemical, biological, and radiological weapons both above ground and in the subway system.
Giving Tuesday
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