1.   Boeing established a safety panel to assess the claims of the workers and sampled the air in the composite area.

2.   A system that continuously samples the air could flag a suspicious contaminant in about a half hour.

3.   Carried on an Army Humvee all-terrain vehicle, the system continuously samples the air for microscopic particles of biological agents.

4.   No asbestos was detected in the air-collection cartridges used to sample the air where the miners work.

5.   The agency sent crews around the financial district late last week wearing small devices that sample air and found no significant signs of asbestos.

6.   The unit deployed special gear and sampled the air, making sure the terrorists had released no deadly germs or toxic chemicals.

7.   Monitors have also not been able to maintain chemical sensors that sample air outside factories that could be used to make poison gas.