Fig. 4From: Effects from a 90-day inhalation toxicity study with cerium oxide and barium sulfate nanoparticles in ratsDistribution of blood cells in response to 90 days nanoparticle exposure. Rats were exposed to clean air, 0.1, 0.3, 1.0 or 3.0 mg/m3 CeO2 or 50.0 mg/m3 BaSO4 nanoparticles. Blood samples were taken at post-exposure day one. Values are expressed as mean percentage of the total number of cells counted; n = 10Back to article page