Document Details

Inter-Company Correspondence (February 10, 1953)
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Health, Safety and Environment\Worker Health and Safety; Specific Material\Uranium
Document Type:
Publication Date:
1953 Feb 10
Declassification Date:
1996 May 22
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
Y-D4-175/DEL REV
Originating Research Org.:
Carbide and Carbon Chemicals Corporation
OpenNet Entry Date:
1998 Jun 16
This correspondence is concerning a quarterly air analysis report of the Machining and Foundry Operations. There were 3582 samples taken in the Machining and Foundry Areas of Building 9212 during the fourth quarter of 1952. The air contamination levels in the B-1 Foundry showed a decline over those of last quarter. Air analysis results on the eleven operations sampled during both quarters showed a decrease in the uranium in air concentrations on eight of them. The general air results continue their downward trend. The findings at the permanent general air sampler above the crucible burner were above the MPL approximately 14 percent of the time, while findings on the other permanent samplers in this area exceeded the MPL less than .5 percent of the time. The uranium in air concentrations as indicated by the permanent general air sample findings in the Sunflower Shops area were approximately half what they were during the third quarter. The high weighted mean on the hand polishing operation indicated a need for localized ventilation. It is believed that, with proper usage, the new hood installation will eliminate these results. In the Daffodil Shop, the air contamination levels continue to be extremely low. The data included is presented in the block method with a description of the operation listed at the top of block and the sample room or area listed at the bottom of the block.

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