Don: "Since I haven't put on my scuba gear, swum down, and measured it personally, I'm waiting to hear something definitive.

Don Firth"

You can use mine!....I haven't in a few years!

Don: "No sweat, GfS. I do support what you say when you're right."

Well, at least THIS time..(wink).

As to the figures that I posted, I'm still sticking with them, including the toxins in the air. Until I hear anything definitive otherwise...IF I do, I shall immediately post an amendment. So far, everything that I'm getting, since, supports my source....including some on here.
Don's posted link, was a surprise to me, that SOMEONE, on national 'news' covered that same figure.

Anyway, I've gotta check to see if anything newer has come in. If I get something, I'll pass it to you.

GfS