So that Corona Virus Particles Don’t Spread Too Slowly, Speak Slowly

NUSADAILY.COM-JAKARTA- Increase quiet zones in high-risk rooms, such as hospitals and restaurants. Could help reduce the risk of spreading the coronavirus, say researchers. After studies have shown that reducing the volume of speech can reduce the spread of the disease.

In an effort to control transmission, reducing 6 decibels when speaking on average has the same effect as doubling the ventilation of a room, scientists say. Among Wednesday.

“The results suggest that public health authorities should consider implementing a ‘quiet zone’ in high-risk indoor environments. Such as hospital waiting rooms or dining facilities, “wrote six researchers from the University of California, Davis.

The World Health Organization changed its guidelines in July to announce the possibility of airborne transmission, such as during choir practice, or being in a restaurant.

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The microscopic droplets emitted while speaking evaporate and leave aerosol particles large enough to carry the virus. A louder 35 decibel increase, or the difference between whispering and shouting, increases the particle emission rate by up to 50 times.

Normal conversation is above the 10 decibel range, while noise in restaurants is around 70.

“Not all indoor environments have the same risk of airborne transmission,” said lead researcher William Ristenpart.

“A busy but quiet classroom is much less dangerous than a quiet karaoke place where visitors are distant but talking and singing loud music.” (int3)

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