Document r6q7JMdg84e876RMDQZE1gnmG

m u G??fj/j 77 000721 Chemical: PFOA DATA SUMMARY Site: Chambers Works Date of Monitoring: 2004 Matrix: Human Biood Serum Operation: Telomers Job Title Entire Cohort Males Females Operators Males Females Mechanics Males Females Laboratorians Males Females Supervision M a les Females Number Sampled 38 36 2 18 18 0 11 11 0 0 0 0 9 7 2 Minimum Concentration- 10.6 10.6 25 34.80 34.80 - 13.3 13.3 - - - - 10.6 10.6 25 Mean' 135.82 123.67 354.5 179.37 179.37 - 85.95 85.95 - - - 109.66 39,71 354.5 Median 82.85 82.85 354.5 150.75 150.75 - 78.8 ,78.8 - - - 25 17.5 354.5 Maximum . Concentration 720 720 684 720 720 Standard I ''Deviation 158.13 131.70 465.98 161.16 161.16 -- 193 60.35 193 60.35 -- -- -- -- 684 217.82 111 37.11 684 465.98 Comments: Analysis by Exygen Where duplicate samples were run, averages of two were used for statistical analysis Descriptive statistics calculated using Microsoft Excel O O Prepared by: Barbara J. Dawson, CIH, C S P O Date of Preparation: December 9, 2004 N DuPont Company PF A in Blood Chambers Works 2004 Telomers Count M in Avg M e d ia n Max Std Dev Operators Male 158 140.5 185 720 400 224 141 266 153.5 50 163 85.5 44.25 159 148 34.8 75.9 80.2 18 34.80 179.37 150.75 720.00 161.16 M echanics Male 49.1 35.1 13.3 78.8 141 134 193 38.9 79 28.3 155 11 13.30 85.95 78.80 193.00 60.35 S u p e rv isio n Male Female 111 25 50.85 684 14.3 10.6 59.8 13.9 17.5 7 10.60 39.71 17.50 111.00 37.11 2 25.00 354.50 354.50 684.00 465.98 Prepared December 9,2004 Barbara J. Dawson, CIH, C S P 000723 DuPont Company PFO A in Blood Chambers W orks 2004 Telomers Summary Count M in Avg M edian Max Std Dev All All Male All Su p 158 158 25 140.5 140.5 684 185 185 111 720 720 50.85 400 400 14.3 224 224 10.6 141 141 59.8 266 266 13.9 153.5 153.5 17.5 50 50 163 163 85.5 85.5 44,25 44.25 159 159 148 148 34.8 34.8 75.9 75.9 80.2 80.2 49.1 49.1 35.1 35.1 13.3 13.3 78.8 78.8 141 141 134 134 193 193 38.9 38.9 79 79 28.3 28.3 155 155 111 111 50.85 50.85 14.3 14.3 10.6 10.6 59.8 59.8 13.9 13.9 17.5 17.5 25 684 38 36 9 10.60 10.60 10.60 135.82 123.67 109.66 82.85 82.85 25.00 720.00 720.00 684.00 158.13 131.70 217.82 Prepared December 9,2004 Barbara J. Dawson, CIH, C SP 000724