Fig. 6From: Evaluation of pulmonary and systemic toxicity following lung exposure to graphite nanoplates: a member of the graphene-based nanomaterial familyLung Clearance of Particles. Morphometric analysis of pulmonary clearance of Gr20, Gr5, Gr1, and CB over the 2Â month time course assuming 100Â % burden at 4Â h post-exposure. At 2Â months, a greater amount of Gr5 persisted in the lungs when compared to all other particles. The majority of the burden remaining in the lung at 2Â months in mice exposed to Gr20 and CB was found to be located primarily in the alveoli (hatched area of bar); whereas Gr5 and Gr1 had greater remaining burden distributed in airwaysBack to article page