Regarding your treated wood query, the EPA has several publications on
the topic of wood preservation which discuss toxicity - I just glanced at
one we have at hand, and it mentions cadmium, chromium, copper and zinc
as heavy metals used in this type of process. Also, you may want to look
for a CD-Rom database called Environment Abstracts at your University
library - this is a popular database and many schools subscribe to it.
It is possible to log onto the EPA's online library system for yourself
(brochures explaining how to do this are available), or, you could submit
an information request to us, as we handle questions from outside the U.S.
Our contact information is as follows:
EPA Headquarters Library/3404
401 M St., SW
Washington, D.C. 20460
Sending a fax is recommended so that we will have your complete contact
information and details of your information needs.