Pulmonary Responses of Sprague-Dawley Rats in Single Inhalation Exposure to Graphene Oxide Nanomaterials

Table 2

Distribution of graphene oxide in nose-only inhalation chamber.

Group	Number by SNPS (particles/cm^3)	Diameter (nm)	Surface area (nm^2/cm^3)	Mass concentration (mg/m^3)
Unexposed	9.99 × 10^2 ± 8.10 × 10	NA	NA	0.01 ± 0.01
Low	3.33 × 10^6 ± 2.95 × 10^5	50.6 (1.82)	6.45 × 10^10 ± 7.04 × 10^9	0.46 ± 0.06
High	6.17 × 10^6 ± 4.13 × 10^5	72.9 (2.02)	2.72 × 10^11 ± 3.70 × 10^10	3.76 ± 0.24

Mean ± SE; GM (GSD).