Pulmonary Toxicity, Distribution, and Clearance of Intratracheally Instilled Silicon Nanowires in Rats

Table 3

Morphometric analysis of Si NW tissue distribution in rats treated with 100 μg of Si NW.

Lung region	Time after-instillation
	Day 1	Day 3	Day 7	Day 28	Day 91
Alveolar macrophage (AM)	72.37±3.61	86.46±5.21	90.63±5.98	100±0.00	100±0.00
Alveolar tissue (AT)	18.15±3.27	11.46±3.94	9.38±5.98	0.00±0.00	0.00±0.00
Alveolar airspace (AA)	9.47±3.22	2.08±2.08	0.00±0.00	0.00±0.00	0.00±0.00