What's in Household Dust? You Don't Want to Know

What's in Household Dust? You Don't Want to Know
http://www.time.com/time/printout/0,8816,1966870,00.html

"It's hard to get too worked up about dust. Yes, it's a nuisance, but it's hardly one that causes us much anxiety — and our language itself suggests as much. We call those clumps of the stuff under the bed dust bunnies, after all, not, say, dust vermin.

But there's a higher ick factor to dust than you might think. And there's a science to how it gets around — a science that David Layton and Paloma Beamer, professors of environmental policy at the University of Arizona, are exploring. (See the top 10 scientific discoveries of 2009.)"