Which procedure is associated with the generation of biohazardous aerosols?

The generation of biohazardous aerosols is particularly associated with vortexing because this procedure involves rapidly mixing liquids, which can create fine droplets or aerosols that may become airborne. When handling potentially infectious or hazardous materials, the process of vortexing can disperse these aerosols into the laboratory environment, posing a significant risk of inhalation or contamination.

This risk underscores the importance of conducting such procedures within a biosafety cabinet and using appropriate personal protective equipment. In contrast, other procedures like using sterile gauze to clean surfaces or sealing containers after use do not involve mechanisms that would generate aerosols and thus do not present the same level of risk for aerosol generation. Pouring liquids down the drain may not create aerosols either, assuming proper procedures are followed to avoid splashing.