Numerical Study of Bacteria Containing Droplets Aerosolized From Hot Surfaces.

The process of water droplet interaction with hot surface can result in droplet shooting off the surface. When the water is contaminated with bacteria the interaction causes substantial ambient air contamination due to aerosolization of live or injured microorganisms. This study investigates the behaviour of water droplets interacting with heated surfaces in the film boiling regime.

Sources and mechanisms of bioaerosol generation in occupational environments.

The primary purpose of this study was to critically review published data related to the sources and mechanisms of aerosolization of microorganisms, their fragments and metabolites in a variety of occupational environments. The processes and mechanisms considered in the review include bursting bubbles; liquid dispersion as the result of irrigation, separation, high pressure cleaning and technological water recycling; manual and automated handling of contaminated material in agriculture, waste processing and industrial processes; as well as high temperature industrial processes. The review identifies the gaps in the existing knowledge regarding the sources of bioaerosol, aerosolization mechanisms, bioaerosol distribution and potential risks for the workers and residents.