Are my pressure-treated raised vegetable beds permanently toxic? [more inside]
posted by MtDewd on May 21, 2009 - 9 answers

How is it possible to detect arsenic in soil from a satellite? [more inside]
posted by destro on May 15, 2008 - 3 answers

Sanding a Deck: How little can I get away with? [more inside]
posted by HK10036 on Apr 24, 2006 - 8 answers