Research Article
Investigations of the Biological Effects of Airborne and Inhalable Substances by Cell-Based In Vitro Methods: Fundamental Improvements to the ALI Concept
Figure 6
Results of clean air exposures using the ExpoCube (single A549 monolayer cultures with 1 cm² growth surface). Results were calculated as percentages of control values with respect to nonexposed controls from WST-1 readings from cultures of the same multiwell plate. The “level of validity” was derived from the prevalidation study [15].