Virginian-American, I believe it was either extremely high levels of something associated with the volcanoes in the case of Hawaii. It is fairly current and you can find it I am sure. Perhaps it is in FR.
It is a real concern, I wasn't joking about it at all. I wouldn't want somebody to get brain damage because of the soil pot was grown on so I thought it would be considerate to pass it on.
Thanks, I hadn't heard about that. I was under the impression that volcanic soil was very fertile, that a lot of Italian wine is grown in it.