Group of rats | Instrument | 0.75 h(1st) | 0.75 h(2nd) | 4 h | 24 h(1st) | 24 h(2nd) | 7d | 28d |
---|---|---|---|---|---|---|---|---|
CMD (nm), mean ± SD of 40 spectra. a | SMPS1 | 21.9 ± 0.7 | 21.4 ± 0.6 | 21.7 ± 1.4 | 22.1 ± 0.1 | 23.8 ± 3.3 | 21.8 ± 0.9 | 21.4 ± 0.5 |
CMD (nm) of aver-aged extrapolated spectrumb | SMPS | 20.7 | 20.4 | 20.2 | 20.6 | 20.2 | 20.5 | 22.4 |
Geom. Std. Dev. (GSD) mean ± SD of 30 spectraa | SMPS | 1.42 ± 0.01 | 1.42 ± 0.01 | 1.42 ± 0.01 | 1.43 ± 0.02 | 1.45 ± 0.06 | 1.43 ± 0.01 | 1.42 ± 0.01 |
GSD of averaged extrapolated spectrumb | SMPS | 1.42 | 1.41 | 1.41 | 1.41 | 1.41 | 1.41 | 1.49 |
Number concentration (# × 106/cm3) of all 30 spectra b | SMPS | 6.5 ± 0.8 | 5.8 ± 0.7 | 5.53 ± 1.11 | 6.6 ± 0.6 | 6.7 ± 0.8 | 6.2 ± 0.5 | 6.1 ± 0.7 |
Median diameter (nm) of volume concentration of all 30 spectra | SMPS | 31.0 ± 1.1 | 30.8 ± 1.1 | 32.8 ± 3.4 | 32.4 ± 1.3 | 32.3 ± 0.44 | 32.6 ± 1.1 | 30.9 ± 0.8 |
Volume concentration c (# × 109 nm3/cm3) | SMPS | 59.2 ± 9.6 | 50.9 ± 9.3 | 50.9 ± 2.2 | 66.5 ± 10.5 | 69.4 ± 9.1 | 62.7 ± 10.3 | 54.2 ± 8.7 |
Number concentration (# × 106/cm3) | CPC | 7.9 ± 0.3 | 8.5 ± 0.4 | 7.0 ± 0.5 | 7.7 ± 0.2 | 8.2 ± 0.5 | 11.6 ± 11.9 | 8.0 ± 0.3 |
Specific 105Ag aerosol activity on filter (kBq/L)d | γ-spectro metry | 3.41 | 2.80 | 3.80 | 2.64 | 2.20 | 2.69 | 2.24 |
Aerosol mass conc (μg/L) from elec-trode + filter actd | γ-spectro metry | 1.31 | 1.46 | 1.01 | 1.03 | 0.86 | 1.08 | 0.85 |