1.   Is dioxin something these guys just keep on hand for moments when they are feeling ugly?

2.   Basically, most dioxins are by-products of burning -- both natural and man-made -- which cling to other materials given off during combustion.

3.   But as new scientific information became available, Dr. Houk said it appeared that dioxin may not be as dangerous at very low levels as initially feared.

4.   Dioxin is stored in fat, so the fatter a person is, the higher his dioxin levels are likely to be.

5.   Dioxin was once a common byproduct of manufacturing and is considered highly toxic.

6.   Dioxins are chemical by-products of industrial processes using chlorine.

7.   Dioxins are highly toxic chemical compounds that are produced as byproducts in combustion and in certain chemical and industrial manufacturing, such as chlorine bleaching of pulp and paper.

8.   Dioxin is a carcinogen.

9.   Dioxin is the pollutant that resulted in the evacuation and eventual razing of Times Beach.

10.   Dioxins are byproducts of incineration, chemical processing, chlorine bleaching of paper and pulp, the burning of diesel fuel and other activities.