Pollen grains (40x) , Volcanic dust (8400x , insert (24,800x) , Sulfuric acid droplet (62,800x) , Quartz sand (210x) , Fly ash and soot (210x) , Blackened white house walls (210x) , Blackened lungs (65x) , Asbestos(210x)
Pollen grains (40x) , Volcanic dust (8400x , insert (24,800x) , Sulfuric acid droplet (62,800x) , Quartz sand (210x) , Fly ash and soot (210x) , Blackened white house walls (210x) , Blackened lungs (65x) , Asbestos(210x)
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