Once the active eruption stops, ash starts to settle. But ash that reaches the ground can easily be lofted ... The eruption ...
including fly ash and bottom ash, in in-ground impoundments. These coal ash wastes — which are a toxic slurry left over after coal is burned — contain a host of heavy metals and contaminants ...
“The public is reminded that Alert Level 3 (magmatic unrest) is raised over Kanlaon Volcano ... advise pilots to avoid flying close to the volcano’s summit as ash from any sudden eruption ...
Carol Stewart, associate professor of the College of Health, Massey University, said: "Ashfall on the ground is not hazardous to breathing, but fine ash in the ... are trying to fly in clean ...