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Linsey Marr

Linsey Chen Marr is an American scientist who is the Charles P. Lunsford Professor of Civil and Environmental Engineering at Virginia Tech. Her research considers the interaction of nanomaterials and viruses with the atmosphere. During the COVID-19 pandemic Marr studied how SARS-CoV-2 and other air…

The smaller microscopic ones that we call aerosols behave kind of like cigarette smoke. So they're going to be more concentrated closer to the smoker, the person who might be infected. As you get farther away, your exposure would be much less.