A nice video lecture by a scientist studying plutonium migration at the Nevada Nuclear Test Site.

[NNadir]

One of the slides has an estimation of all of the events that led to plutonium release into the environment, as well as an estimation of the amount released.

The lecture is by Dr. Marvik Zavarin at the Lawrence Livimore laboratory.

The sound quality is pretty bad; it looks as if he's giving the lecture from home and he may not be the world's most engaging speaker but the slides and what he says (as opposed to how he says it) are excellent.

Here's the video:

I came across the video when looking into his background, since I recently discussed in this space a paper which he coauthored on the subject of plutonium migration in soil. He was trained as a soil scientist at UC Berkeley.