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Table 1 Characterization of chamber environment

From: Lung carcinogenicity of inhaled multi-walled carbon nanotube in rats

Target concentration (mg/m3)

0

0.02

0.2

2

Temperature (°C)

23.0 ± 0.2

22.9 ± 0.1

23.0 ± 0.2

23.0 ± 0.2

Humidity (%)

53.8 ± 1.8

52.9 ± 2.4

53.3 ± 2.1

52.7 ± 2.0

Chamber air flow (L/min)

1670 ± 37

1671 ± 36

1671 ± 37

1668 ± 38

Mass concentration (mg/m3) a

0.000 ± 0.000

0.020 ± 0.001

0.204 ± 0.014

2.018 ± 0.069

MMAD (GSD): 1 week b

-

1.3 μm (3.0)

1.4 μm (2.9)

1.3 μm (2.6)

MMAD (GSD): 14 week

-

1.3 μm (2.8)

1.3 μm (2.9)

1.3 μm (2.9)

MMAD (GSD): 27 week

-

1.3 μm (2.9)

1.3 μm (2.9)

1.3 μm (2.8)

MMAD (GSD): 40 week

-

1.3 μm (2.9)

1.3 μm (2.9)

1.3 μm (2.9)

MMAD (GSD): 53 week

-

1.4 μm (3.0)

1.4 μm (2.9)

1.4 μm (2.9)

MMAD (GSD): 66 week

-

1.2 μm (2.9)

1.3 μm (2.9)

1.4 μm (2.8)

MMAD (GSD): 79 week

-

1.3 μm (2.9)

1.3 μm (2.9)

1.4 μm (2.8)

MMAD (GSD): 92 week

-

1.3 μm (3.0)

1.3 μm (3.0)

1.4 μm (2.8)

MMAD (GSD): 102 week

-

1.4 μm (2.9)

1.3 μm (2.7)

1.3 μm (2.9)

  1. Values indicates means ± SD
  2. a The mass concentrations were calibrated from the particle concentration of MWNT-7 in the inhalation chamber measured by the OPC
  3. b MMAD: Mass median aerodynamic diameter, GSD: geometric standard deviation