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Table 1 Distribution of gold nanoparticles (mean ± S.E.).

From: Subchronic inhalation toxicity of gold nanoparticles

Group Site Diameter(nm) Number (particles/cm3) Surface (nm2/cm3) Mass (μg/m3)
Control   0 0 0 0
  Upa 4.29(1.69) 2.46 × 104 ± 2.38 × 102 1.96 × 106 ± 3.28 × 104 0.04 ± 0.00
Low Downb 4.32(1.64) 2.21 × 104 ± 2.98 × 102 1.81 × 106 ± 4.03 × 104 0.04 ± 0.00
  Total 4.30(1.67) 2.36 × 104 ± 1.90 × 102 1.90 × 106 ± 2.55 × 104 0.04 ± 0.00
  Up 4.11(1.35) 2.40 × 105 ± 1.98 × 103 1.71 × 107 ± 2.24 × 105 0.38 ± 0.02
Middle Down 4.13(1.41) 2.29 × 105 ± 2.59 × 103 1.53 × 107 ± 2.05 × 105 0.38 ± 0.03
  Total 4.12(1.38) 2.36 × 105 ± 2.32 × 103 1.68 × 107 ± 1.66 × 105 0.38 ± 0.02
  Up 4.96(1.77) 1.98 × 106 ± 1.85 × 104 3.67 × 108 ± 6.35 × 107 20.14 ± 0.64
High Down 5.20(1.93) 1.66 × 106 ± 1.53 × 104 3.60 × 108 ± 7.51 × 106 20.80 ± 0.73
  Total 5.06(1.86) 1.85 × 106 ± 1.36 × 104 3.64 × 108 ± 4.85 × 106 20.02 ± 0.41
  1. †: GM(GSD)
  2. a: breathing zone,
  3. b: below breathing zone.
  4. Control chamber indicates number of particles passed after HEPA filter