Samples S x Standard Average Deviation (ppm) (ppm) %> 1 ppm Upper Confidence Limit (x,+ 2*S) Reactor Operator 87 3.5 17.0 24 37.5 General Mechanic 284 3.7 5.6 5 15.0 Chief Operator 47 1.5 2.8 26 7.2 Vinyl Operations Engineer 9 0.4 0.9 11 2.1 Vinyl Shift Supervisor 54 0.4 0.9 9 2.1 Lead Operator 92 .0.2 0.9 2 2.0 Yard Supervisor 8 0.4 0.7 13 1.8 Maintenance Helper 37 0.4 0.7 3 1.7 Instrument Tech. 6 0.4 0.6 17 1.6 Vinyl Operations Supervisor 2 0.6 0.5 0 1.5 Dryer Operator 88 0.2 0.4 1 1.0 Utility Technician 44 0.2 0.4 0 1.0 Painter-Carpenter-Insulator 11 0.3- 0.3 0 0.9 Maintenance Supervisor 32 0.2 0.2 3 0.6 Safety Supervisor 1 0.6 0 0 0.6 Yard Operator 49 0.2 0.2 0 0.5 Lead Warehouse Worker 2 0.2 0.1 0 0.5 Dryer Utility 45 0.2 0.1 0 0.4 Lab Technician 12 0.1 0.1 0 0.3 Lab Lead Technician 3 0.2 0.1 0 0.3 Mechanical Superintendent 10 0.1 0.1 0 0.3 Process Engineer 12 ' 0.1 0.1 0 0.2 Safety Director 1 0.2 0 0 0.2 Receiving Lead 1 0.2 0 0 0.2 Maintenance Superintendent(Mech.)11 0.1 0.03 0 0.2 Storekeeper 3 0.1 0 0 0.1 Contract Supervisor 1 0.1 0 0 - 0.1 Vinyl Operations Supt. 1 0.1 0 0 .0.1 Lab Supervisor 6 0.1 0* .0 0.1

nor asstime that at zero air lead, there would he zero blood lead.

An encapsulant will be introduced shortly to minimize the dissipation of lead particles in the air when a carding brush is used on lead cable.

vii Lead Industries Association v.

vii Lead Industries Association v.

Lead Fair/ Weak Fair Cabot DeGussa Fair Fair Strong Strong Baker Fair/ Weak Fair Leading .

Lead Fair/ Weak Fair Cabot DeGussa Fair Fair Strong Strong Baker Fair/ Weak Fair Leading .

Lead Fair/ Weak Fair Cabot DeGussa Fair Fair Strong Strong Baker Fair/ Weak Fair Leading .

Lead Fair/ Weak Fair Leading .

Lead Fair/ Weak Fair Cabot DeGussa Fair Fair Strong Strong Baker Fair/ Weak Fair Leading .

Lead Fair/ Weak Fair Leading .

Lead Fair/ Weak Fair Cabot DeGussa Fair Fair Strong Strong Baker Fair/ Weak Fair Leading .

This will, particularly in the context of e model with substantial measurement error < the instrument measurement error variance accounts for l&a of the variance of lead, and the inexactitude of blood lead accounting for toxicologically active soft tissue lead probably accounts for a similar fraction of the variance of lead} create a substantial increase in the bias of B.

Lead Industries Association, Inc. 292 Madison Avenue New York.

ABDOO174808 ABERDEEN CHEMICAL PLANT VCM AND LEAD DOSIMETRY SUMMARY -FISCAL YEARS 1985 AND 1986- Number o-f Samples Number o-f Overexposures Number o-f Overexposures Without Respiratory Protection Number of Samples Number of Overexposures Number of Overexposures Without Respiratory Protection FISCAL. 1985 VCM LEAD 1021 190 39 (3.8V.) 5 (2.67.) 20 (2.0`/.) 0 FISCAL. 1986 VCM LEAD 993 215 29 (2.97.) 16 (7.47.) 9 (0.97.) 0 APPROXIMATE INVENTORY LEVELS OF SELECTED MATERIALS VCM - 3 Million Pounds PHTHALLIC ANHYDRIDE - 160,000 Pounds ALFOL ALCOHOLS - 200,000 Pounds