More than 4.3 million passengers ride the New York City subway sytem every day. Distinguished professor Norman R. Pace (not pictured) and his team collected air in the New York City subway聽system to test for bacteria and pathogens.
If you have ever used New York City鈥檚 subway system, fear not.聽
The air in the depths far below the bustling streets is no worse than any crowded outdoor space, says CU-Boulder distinguished professor Norman R. Pace of molecular, cellular and developmental biology.
Pace and his team collected two cubic meters of air, equivalent to the volume we breathe every day, from seven subway stations including Grand Central, Times Square, Union Square and an abandoned station at City Hall.
The good news is the team didn鈥檛 find any known human pathogens. And while each sample contained about 1 million bacteria, that quantity mirrored outdoor air measurements. Five percent of that amount came from human heads, arms, heels and the like.
鈥淲e saw nothing unusual, certainly nothing threatening,鈥� Pace told聽The New York Times聽in May. 鈥淎t least, no more threatening than the people standing next to you on the platform.鈥�
Photo courtesy Xavier Arnau
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