I wondered at the time, why New York City wasn’t protecting the lungs of the workers at 9/11.
Fireman wear oxygen supplied full face respirators on the job, yet there they weren’t ordered to protect their lungs throughout the hunt for their coworkers.
Years back, I saw a Discovery program, where ash from Yellowstone traveled to Nebraska and killed grass eating dinosauers there. They inhaled the ash particulate while eating and the lung complications were tracable in the minerals of their bones.
nature.nps.gov/geology/nationalfossilday/other_parks.cfm
Ashfall Fossil Beds is home to an impressive accumulation of complete Miocene animal skeletons, in particular the rhino skeletons are some of the best-preserved in the world. These animals are
believed to have died from lung failure due to inhalation of volcanic ash. After death, the animals were buried under layers of this volcanic ash where they have been preserved intact for over 10 million years.
algoxy.com/psych/9-11fivephenomena.html
Paper talking about the pulverization of concrete columns and concrete floors throughout the Towers.
volcanoes.usgs.gov/ash/health/
Free crystalline silica in volcanic ash
Volcanic ash may contain varying proportions of free crystalline silica (silicon dioxide, SiO2) in the form of quartz, cristobalite, or tridymite minerals. The minerals are described as “free” silica because the silicon dioxide compound is not attached to another element to create a new mineral; for example, magnesium to form the mineral olivine. Exposure to respirable particles of free crystalline silica can lead to silicosis, a disease resulting in scarring of the lungs and impairment of their function.