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