You can see the advantages because there is no potentially toxic residues left.

Some members worried that the rug-cleaning business might leave behind toxic residue.

This process produced a toxic residue that was a danger to the local birdlife.

He also rejected their contention that a cleanup of toxic residues would be needed to make the city safe to live in.

But, like a toxic residue, the feeling he'd picked up at the river went with him.

Also, toxic residue in food may contribute to a child's exposure to a certain pesticide.

The cost of removing all the toxic residue from the 370-acre site is estimated to be about twice that amount.

By then, fears of toxic residues in the environment had begun to recede.

No toxic residue is left in the crop or the environment.

All of them polluted the river, a toxic residue that adds to the city's troubles.