主题：为什么核废料很危险？一位核技术博士的简短解释 -- hwd99

could dissolve and be brought up into surface by ocean flow. It could then be eaten by sea animals and then go into food chain and spread out around the globe.

Note the key point in my previous post is to encapsulate the nuclear waste into small glass beads. These beads should be small (e.g., <= 0.5 cm in diameter), they will survive even when big geological events (such as big earthquake) happen. And since glass is not solvable in water, the nuclear waste will not get leaked into underground water, and therefore, it is a very safe and cheap way to deal with nuclear waste