Figure 2.

Photographs of particulates collected from impactor trials.

Photographs of removable foil pieces that lined the cascade impactor capture chambers illuminated under UV light for trials using nebulized saline (negative control, A), nebulized fluorescein (B), nebulized green water tracer dye (C), nebulized vitamin B2 (D), and coarse diamond drilling of cadaver head with Vitamin B2 irrigation (E). Particles filtered based on average aerodynamic diameter into 8 impactor stages - (1) 14.1 µm, (2) 8.61 µm, (3) 5.39 µm, (4) 3.30 µm, (5) 2.08 µm, (6) 1.36 µm, (7) 0.98 µm, and (8) <0.98 μm – are displayed.