Köln,
06.03.2021
""This has to do with air circulation being far more pronounced outdoors," says Nico Mutters, who heads the Institute for Hygiene and Public Health at Bonn University Hospital. "The winds have a quick diluting effect." Birgit Wehner, an aerosols researcher at the Leibniz Institute for Tropospheric Research, says the tiny particles we exhale dry and dissipate far quicker outdoors. However, a paper by the Aerosols Association — signed by Wehner and others — states that infections still cannot be ruled out when individuals gather in large groups without keeping a sufficient distance."