Fig 5.
Aerosolization of particles from Botrytis cinerea cultures on gypsum boards when exposed to airflow (1.5 m s−1). The average numbers of particles of each size fraction aerosolized during the first and second minute of air exposure and during the fourth and fifth minute at an rh of 18% (a) and of 64% (b), from a culture exposed twice with a 10-day interval between each 5-min exposure period (c), and during the first and second minute of exposure to air jets (d) are shown. The sizes in the figures are the aerodynamic diameters (da) of the dominating fractions in terms of numbers during the first or second exposure minutes (a, b) or minute (d) or period (c).