Fig. 4
From: Engineered nanomaterials: toward effective safety management in research laboratories
Decision tree for determining the Nano risk laboratory level. a Decision tree used for determining the Nano level as a function of the substance and activity emission potential for the potential hazard level H1 obtained using Fig. 3. b Decision tree used for determining the Nano level as a function of the substance and activity emission potential for the potential hazard level H2 obtained using Fig. 3