Make your brass sparkle without nasty chemicals by using yogurt.

Mr. Smith, a retired chemical engineer who lives here with his wife and dog, admitted making "every nasty chemical there is" during his career.

We ain't got the smell of that ship off: us yet--nasty chemicals.

They terrify patients with a "halimeter," a new gadget that measures a nasty smelling chemical called methyl mercaptan.

Not to mention other nasty chemicals.

And if you really want to have a range of wonderful, different, tastes, with no nasty chemicals added to stop fermentation, clear the wine etc - make your own.

Almost everywhere in the third world, industry keeps costs down by spewing nasty chemicals into the air and water.

The site was once an apple orchard, and those are the nasty chemicals that pre-Kennedy farmers used to kill bugs.

The farmers in your district use all those nasty agricultural chemicals.

If a government taxes, say, the use of nasty chemicals, it may run into problems with its domestic industry, which will complain that foreign competitors escape scot-free.