今天NYT 文章，

冲厕所时产生的水雾可能传播新冠病毒。

Flushing the Toilet May Fling Coronavirus Aerosols All Over

A new study shows how turbulence from a toilet bowl can create a large plume that is potentially infectious to a bathroom’s next visitor.

By Knvul Sheikh

Published June 16, 2020

Updated June 17, 2020

Here’s one more behavior to be hyper-aware of in order to prevent coronavirus transmission: what you do after you use the toilet.

Scientists have found that in addition to clearing out whatever business you’ve left behind, flushing a toilet can generate a cloud of aerosol droplets that rises nearly three feet. Those droplets may linger in the air long enough to be inhaled by a shared toilet’s next user, or land on surfaces in the bathroom.

This toilet plume isn’t just gross. In simulations, it can carry infectious coronavirus particles that are already present in the surrounding air or recently shed in a person’s stool. The research, published Tuesday in the journal Physics of Fluids, adds to growing evidence that the coronavirus can be passed not only through respiratory droplets, but through virus-laden feces, too.

And while it remains unknown whether public or shared toilets are a common point of transmission of the virus, the research highlights the need during a pandemic to rethink some of the common spaces people share.

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