| Recovery group | |||||||
---|---|---|---|---|---|---|---|---|
Recovery period | 2 Weeks | 4 Weeks | ||||||
Concentration (mg/m3) | 0 | 0.8 | 4 | 20 | 0 | 0.8 | 4 | 20 |
Absolute organ weight (g) | ||||||||
 Brain | 1.751 ± 0.101 | 1.804 ± 0.053 | 1.796 ± 0.018 | 1.695 ± 0.081 | 1.831 ± 0.061 | 1.774 ± 0.095 | 1.815 ± 0.030 | 1.786 ± 0.100 |
 Heart | 0.702 ± 0.076 | 0.718 ± 0.030 | 0.700 ± 0.037 | 0.681 ± 0.032 | 0.771 ± 0.034 | 0.743 ± 0.037 | 0.736 ± 0.061 | 0.721 ± 0.086 |
 Lung | 0.387 ± 0.035 | 0.424 ± 0.023 | 0.394 ± 0.035 | 0.388 ± 0.021 | 0.430 ± 0.030 | 0.419 ± 0.030 | 0.438 ± 0.043 | 0.416 ± 0.012 |
 Liver | 6.765 ± 0.493 | 6.738 ± 0.403 | 6.512 ± 0.131 | 5.847 ± 0.140b | 7.545 ± 0.576 | 7.225 ± 0.697 | 6.987 ± 0.605 | 6.785 ± 0.578 |
 Spleen | 0.517 ± 0.031 | 0.547 ± 0.027 | 0.534 ± 0.066 | 0.488 ± 0.024 | 0.621 ± 0.064 | 0.582 ± 0.039 | 0.575 ± 0.058 | 0.564 ± 0.036 |
 Kidney | 1.573 ± 0.101 | 1.566 ± 0.100 | 1.538 ± 0.086 | 1.424 ± 0.059 | 1.662 ± 0.122 | 1.625 ± 0.103 | 1.583 ± 0.067 | 1.557 ± 0.070 |
Relative organ weight (%) | ||||||||
 Brain | 0.772 ± 0.053 | 0.799 ± 0.030 | 0.826 ± 0.014 | 0.871 ± 0.059b | 0.700 ± 0.031 | 0.707 ± 0.040 | 0.761 ± 0.021a | 0.761 ± 0.021a |
 Heart | 0.309 ± 0.025 | 0.318 ± 0.010 | 0.322 ± 0.016 | 0.349 ± 0.010b | 0.295 ± 0.013 | 0.296 ± 0.014 | 0.307 ± 0.025 | 0.307 ± 0.025 |
 Lung | 0.171 ± 0.015 | 0.188 ± 0.016 | 0.181 ± 0.013 | 0.199 ± 0.015a | 0.165 ± 0.019 | 0.167 ± 0.007 | 0.177 ± 0.006 | 0.177 ± 0.006 |
 Liver | 2.974 ± 0.082 | 2.981 ± 0.088 | 2.992 ± 0.045 | 3.002 ± 0.054 | 2.878 ± 0.041 | 2.870 ± 0.139 | 2.888 ± 0.126 | 2.889 ± 0.126 |
 Spleen | 0.228 ± 0.009 | 0.242 ± 0.010 | 0.245 ± 0.025 | 0.250 ± 0.008 | 0.237 ± 0.010 | 0.232 ± 0.009 | 0.238 ± 0.012 | 0.240 ± 0.008 |
 Kidney | 0.692 ± 0.018 | 0.693 ± 0.024 | 0.706 ± 0.030 | 0.732 ± 0.032 | 0.656 ± 0.019 | 0.647 ± 0.020 | 0.664 ± 0.017 | 0.664 ± 0.017 |