1.   A big offender is chlorine gas used for bleaching wood pulp.

2.   In cases where it is preferable to use new paper, such as coffee filters and sanitary products look for paper which has not been bleached with chlorine gas.

3.   And what would have happened if the train was carrying nuclear waste or chlorine gas?

4.   But the chlorine dioxide gas that will be used in the Senate office buildings in Washington will allow documents to survive decontamination intact.

5.   Chlorine dioxide gas, the method chosen for the Senate offices, kills the bacteria in a completely different way, working from the outside in.

6.   Doctors initially diagnosed phosgene gas, a chlorine gas developed in World War I, but later backed away from that.

7.   ECF pulp does not use chlorine gas in bleaching, but does use chlorine dioxide, which is thought to be less environmentally damaging.

8.   If tests show that parts of the structure are still contaminated after the current cleanup effort is completed, officials might reconsider using the chlorine oxide gas.

9.   In the other, workers were exposed to chlorine gas.