ABSTRACT
Air sampling programs should be designed to meet the following objectives: (1) where needed, provide real-time monitoring of air concentrations and alarm if the levels exceed the preset and/or desired warning limits, (2) estimate exposure levels when appropriate, and of importance to this chapter (3), test the effectiveness of aerosol connement and ventilation (Marshall and Stevens, 1980). Protection of workers from dispersible radioactive material requires that ventilation-driven airow is used and that it is sufcient for containment and control. Airow is a highly effective tool for preventing dispersible material from escaping containment structures such as glove boxes and chemical hoods, and if released into a room, directed air ow can prevent the unwanted spread of the radioactive material into other areas of the facility resulting in unwarranted spread of contamination and worker exposures.
