Fig. 3.

Tornado graphs to display the ranking of input variables that impact the output value for workers (without or with PPE) exposed to S. aureus or E. coli bioaerosols in various aeration tanks of the two wastewater treatment plants referring to (a) workers without PPE exposed to S. aureus bioaerosol in wastewater treatment plant A, (b) workers without PPE exposed to S. aureus bioaerosol in wastewater treatment plant B, (c) workers with PPE exposed to S. aureus bioaerosol in wastewater treatment plant A, (d) workers with PPE exposed to S. aureus bioaerosol in wastewater treatment plant B, (e) workers without PPE exposed to E. coli bioaerosol in wastewater treatment plant A, (f) workers without PPE exposed to E. coli bioaerosol in wastewater treatment plant B, (g) workers with PPE exposed to E. coli bioaerosol in wastewater treatment plant A, and (h) workers with PPE exposed to E. coli bioaerosol in wastewater treatment plant B.

Correlation coefficient values were obtained from @ Oracle Crystal Ball sensitivity analyses and are shown next to each bar.

S. aureus = Staphylococcus aureus,

E. coli = Escherichia coli,

PPE = Personal Protective Equipment.