- Significant effects allowing the determination of a LOAEL
- No significant adverse effects observed
- aDoses tested at the ALI: 1.67, 16.7, 50 μg/106 macrophages
- bDoses tested in submerged conditions in inserts: 16.7, 50, 167 μg/106 macrophages
- cDoses tested in submerged conditions in plates: 40, 120, 400, 800 μg/106 macrophages
- dDoses tested in vivo: 0.16, 1.6, 16 μg/106 macrophages