1.   A noxious gas was discovered to be leaking from the pipe.

2.   In many areas of the country black clouds had completely blocked out the sun, and noxious gases were making normal life impossible.

3.   Cranog Jones, who sits on the Cheltenham bench, was charged with administering noxious gas to his estranged wife at their home in Brockhampton in Gloucestershire.

4.   Among the results are dead fish, murky water and noxious gases.

5.   A perhaps fanciful idea would be to deploy sentinel animals, much like the coal mine canaries that died quickly if noxious gases started seeping in.

6.   A sulfur plant was destroyed, mixing noxious gasses with the suffocating smoke.

7.   Cremation pollutes the atmosphere with heavy metals and noxious gases.

8.   Dr. Stephen H. Schneider, a Stanford University biology professor, invoked the image of canaries carried into coal mines to warn of noxious gas.

9.   Is urea formaldehyde foam insulation slowly emitting noxious gas through cracks in the walls?

10.   Koresh and his followers set fire to their Mt. Carmel compound after FBI agents injected noxious CS gas into the structure in an effort to force them to surrender.