| 21. | It does this by drawing the air sample through a cascade of progressively finer nozzles.
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| 22. | Clients collect air samples from sites, and then send the samples to Galson for analysis.
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| 23. | The squadron also inherited its secondary role of air sampling from No . 543 Squadron.
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| 24. | The crew will take air samples in higher altitudes to check the pollution-threatened ozone layer.
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| 25. | State officials said air samples had not indicated any radiation releases caused by the blaze.
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| 26. | No companies have yet licensed the air sampling units.
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| 27. | Military experts collected air samples and leaves from the pit for study Sunday and Monday.
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| 28. | Twenty-three of the air samples showed actinolite or tremolite asbestos fibers, the on-scene coordinator said.
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| 29. | Air samples taken in the concourse showed nothing unusual.
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| 30. | In air samples taken during nine brake jobs, analysis found significant amounts of asbestos in six.
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