Figure 2From: Risks from accidental exposures to engineered nanoparticles and neurological health effects: A critical reviewOverview of the routes by which ENPs can translocate after inhalation through the nose or the lungs to the brain. Note that inhalation through the nose represents the likelihood of acute exposure effects whereas the inhalation pathway through the lungs followed by translocation to secondary organs and possible re-entry to the blood is showing the probability for chronic exposure.Back to article page