padzilla says: I could honestly say I live in a dump. One of the problems I see from this is possile toxins being leeched or emitted from the smorgasbord of matrials used. Plus- there had to be some kind of binding agent used to glue it all together. What was it? ". . . some kind of binding agent . . ." Bitumen? Yikes! Like I said... "Most bitumens contain sulphur and several heavy metals such as nickel, vanadium, lead, chromium, mercury and also arsenic, selenium and other toxic elements. Bitumens can provide good preservation of plants and animal fossils." |
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