Eurekalert  July 16, 2019 Floating air particles following disasters and other largescale geological events can have a lasting impact on life on Earth. Using available wind data, researchers in Hungary have developed a model for following air particles as they travel around the globe. They found that lifetimes of particles ranged from about two to 150 days for typical volcanic ash particles, more than 10% of smaller particles survive in the atmosphere as much as one year, and more than 1% survive two years, particles coming from the area around the equator remain in the atmosphere for the longest time, […]