And the literature has described the hell shrub, with pictures, as giving off dangerous vapors.

It became clear that American combat engineers had blown up an Iraqi weapons depot that contained chemical weapons, making it likely that dangerous vapors had escaped.

Boeing said that it was now researching possible ways of reducing the accumulation of dangerous vapors in fuel tanks.

"Here dangerous malarial vapours during October to December."

A special exhaust system was provided to dispose of dangerous atomic vapors.

But today, the manufacturer said that that approach was not sufficient and that it was researching possible ways of reducing the accumulation of dangerous vapors in fuel tanks.

Victims on the ground scrabbled desperately out of the way as the dangerous vapour stabbed out, screaming at them to stop shooting.

FOR instance, most chemistry research now is done under hoods that whisk away any dangerous vapors; the old building had fewer than 60, but the new one will have more than 230.

The inspector general said he could not substantiate workers' accusations about contractors' tampering with medical records and hiding information about dangerous vapors from nuclear waste tanks.

The investigators announced in December that the 12,890-gallon center fuel tank was primed for an explosion because air conditioning packs below it had heated the small amount of fuel, producing dangerous vapors.