Document ykqBx6rnK01mRjYQmnp3ZpO7n

s. ' - ' ' ^ FROM 0. L. ROYER PERSONNEL DEPARTMENT CONFIDENTIAL AL-464 . June 21, 1967 . .. . .TO MR. R. E. WHITSON ADM, & TECH. MANAGER Trtsi RE: ENVIRONMENTAL CONDITIONS The following is a liet of problem areas that have come to our attention over the past several years, and are, for the most part, still being pur sued by one or more groups in the organization. The Industrial Hygiene Committee has been involved in most of these areas, POTROOMS & FLOTATION PLANT 1. Vortex tube program 2. Dusts 3. Electrode fumes and blow-outs - automation program in process. SMELTING POWER DEPARTMENT 1. High atmospheric temperatures 2. Excessive exhaust leaks - test program for CO & nitrogen dioxide 3. High noise level - particularly Bldg. #67 4. Fumes from activator reclaim unit REFINING POWERHOUSE 1. High atmospheric temperatures INGOT ~PLAN1T 1. High atmospheric temperatures 2. Dusts from marinite sawing 3. Chlorine fluxing *t * , , ' _ PRECIPITATION 1. High noise levels in tank scaling POT REPAIR ' 1. Noise level - digging machine 2. Dusts ' MACHINE SHOP - R-148 1, Toxity of metallizing operation - particularly wires containing lead 2. Copper and flux poisoning in connection with burning, brazing & soldering CHLOR-ALKALI ' 1. Mercury contamination - test program in progress 2. Chlorine fumes APC 006312 ALCOA r 4SSS-RCV. SOOM 4-S > A FROM 0. L. ROYER Page 2. T0 .MR. R. E, WHITSON AL-464 LABORATORY 1. Ozone level in quantometer room STOREROOM 1. Storage of chemicals requiring close temperature control such as Chlorothene-Nu and Methol Ethyl Keytone. Special storage facilities have been provided. PASTE PLANT " 1. 2. Heat conditions on blender floor. Mixer floor problem has been solved by installation of ventilating system. Coke dusts -r ' 1;' ' ELECTROLYTE 1. Hydrofluoric acid vapors 2. Dusts PAINT DEPARTMENT - 1. Lead poisoning - continuous test program in operation. GENERAL 1. Alumina dust 2. Bauxite dust 8, Toxity of organic solvents in application of epoxy and polyester coatings. . OLRidk 0. L. ROYER O ALCOA / APC 005313 a? 4i<t N(y. aoow 4