Hill AFB Beryllium and Cadmium Emission Evaluation.
ENVIRONMENTAL HEALTH LAB MCCLELLAN AFB CALIF
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Stack emissions from a beryllium honing booth used to clean C-5A brakeshoes were measured. Beryllium emissions of 0.55 gday were found. The current federal standard for beryllium stack emissions is 10 gday. Emissions from a vacuum cadmium metalizing unit were also measured. Total emissions from the unit averaged 2000 micrograms cadmium dust per plating cycle. Ambient air concentrations in the work area below the exhaust outlet averaged 0.0001 mgcu m. The current Threshold Limit Value TLV for cadmium dust is 0.05 mgcu m.
- Air Pollution and Control