Science
The Big Number: The pandemic has lead to a quieter world – The Washington Post
The approximately 50 percent drop in environmental noise exposure brought it below the level generally considered to carry health risks
U.S. residents have experienced a quieter world in recent months about 3 decibels quieter than usual, according to University of Michigan research that compared noise levels in the environment before and after coronavirus-related social distancing and lockdown requirements took effect. That represents about a 50 percent drop in environmental noise exposure, according to the study, published in the journal Environmental Research Letters. Environmental noise stems from such sources as traffic (car…
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