Kelly Cassidy wrote:

> It is hard to imagine so much shot that a pond or lake would have a serious
> lead pollution problem.

There was a major kill of Greylag Geese and Mute Swans at Loch Eye, near
Elgin, Scotland about 5 years ago when water levels fell so low that the
feeding birds were able to pick up the lead shot which had accumulated on the
bottom of the loch. As far as I remember there were hundreds of birds
involved, with around 2-300 Greylag Geese being killed.

There was some talk of dredging all the sediment from the loch to remove the
lead, but I don't know if this happened.

It's certainly a problem which takes a long time to go away - if ever.

Incidently there is a similar problem with mercury on the seabed around
Liverpool, England and the wetlands of the Wirral penninsula nearby.
Apparently in some places there are pools of the stuff visible on the bottom.

Stuart
---
#import "StandardDisclaimer.h";

Stuart MacKay McCaw Cellular Communications
Consultant Developer Oakhurst Building
Axys V3 14335 NE 24th St.
ph. (206) 702-5151 Bellevue, WA
fax (206) 702-5451 98007

stuart.mackay at mccaw.com
__________________________________________________________