Six feet not far enough to stop virus transmission in light winds
Current social distancing guidelines of 6 feet may be insufficient, because a mild cough occurring in low wind speeds of 4-15 kph can propel saliva droplets 18 feet
WASHINGTON, May 19, 2020 — Airborne transmission of viruses, like the virus causing COVID-19, is not well understood, but a good baseline for study is a deeper understanding of how particles travel through the air when people cough.
In a paper published in Physics of Fluids, from AIP Publishing, Talib Dbouk and Dimitris Drikakis discovered that with even a slight breeze of 4 kph, saliva travels 18 feet in 5 seconds…
