Biological Impact of Exposure to Extremely Fine-Grained Volcanic Ash

Figure 5

Uptake of ash and vacuolization by peritoneal macrophages: (a) untreated cells and (b) cells treated with 320 µg/cm³ and view of cells with internalized and vacuolization of ash particles (arrows). Images are representative of all samples. Staining: hematoxylin and eosin. Scale: 100 μm.

(a)

(b)