COVID-19: RIKEN calculates splash diffusion: 5 times more splashes at “sitting position”
COVID-19: RIKEN
Verification of new corona infection risk using supercomputer “Tomitake”
Sit next to each other and have a conversation:
At a restaurant
If you sit next to each other and have a conversation
Rather than talking head-on
Take 5 times more droplets (himatsu)
I found out.
This is how the droplets spread, calculated by Tomitake when four people talked at a restaurant for about one minute.
RIKEN:
seat:
It was found that when an infected person was sitting beside him and talking, he “received five times as many droplets as when he was sitting in front.”
Humidity:
Furthermore, the lower the humidity of the droplet itself, the more rapidly it floats in the air.
At a humidity of 30%, more than twice as many droplets as at 60% reached 1.8 meters away.
Concert hall:
When singing in a concert hall, the droplets go straight.
Therefore, the risk increases as the person in front increases.
The airflow created by the chorus means that the droplets reach farther.
https://news.tv-asahi.co.jp/news_society/articles/000195461.html