Northwcst_ioanal_ical StudyNo.

Comments on the PFAS Restriction Proposal Japan Chemical Industry Association (JCIA) appreciates the opportunity to provide the following comments in response to the proposal of this PFAS restriction.

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Pilot-Scale Fluoropolymer Incineration Study: Thermal Treatment of a Mixture of Fluoropolymers under Representative European Municipal Waste Combustor Conditions Dr.

AR226-2148 SSG jerator: [\n 1 )i\MJ5 freform F ressure: 5C OOPS1 Date:8-?

AR226-2245 Thompson Collins Watklns Smith Name r9 9 Particulate Vapor Total N Deposition Deposition Deposition O Coordinates (q/m 2/yr) (q/m 2/yr) (g/m2yr) O A A 445213E 0 .00098 0.00008 0 .00106 W 4346090N 443141E 4345753N 443223E 4345847N 443254E 4345888N 0 .00179 0.00193 0.00186 0 .00021 0.00019 0.00018 0 .00200 0.00212 0.00204 Concentrations are from the deposition modeling runs, and Include wet and dry depletion due to deposition Particulate Concentration (ug/m3) Vapor Concentration (ug/m') Total Concentration (ug/m3 0 .02000 0 .03217 0 .05217 0 .03752 0.05854 0 .09606 0.03665 0.05695 0 .09380 0 .03554 0.05587 0 .09141

AR226-2729 E.

AR226-2848 E.

AR226-2905 FOR DU FONT USE ONLY E.

Northwest Bioanalytical A H & 8 l6 - >A I J L Study No.

Arrrg~ iH-sy Jah, 2 99 02: 02p DuPont-Chasbers Werks 609-540-4654 p .2 CC: B.

.Wildlife International Ltd. -1 - Project Number 454A-1Q2 PFOS: A 96-HOUR STATIC ACUTE TOXICITY TEST WITH THE FATHEAD MINNOW (Pimephales promelas) ADDENDUM WILDLIFE INTERNATIONAL, LTD.

AR226-2083 C-8 SAHPLIH6 PROJECT PA6E 1 OF 41 SUHHARY OF SPECIAL C-8 SAMPUN6 PROJECT Jennifer Nichols Environmental Lab LSE 9-16-97 EID093252 KID137016 RJZ021182 '.I C-8 SAMPLING PROJECT PAGE I OF 41 TABLE OF CONTENTS - PASE TITLE PAGE........... .................... ......... 1 TABLE OF CONTENTS.................................. 2 INTRODUCTION ....................................... 3 SUMMARY OF AIR MONITORING........................... 4 SUMMARY OF WIPE SAMPLING............................ 5 ATTACHMENT 1: AIR SAMPLING RESULTS ............ ..... . 6 SUMMARY OF AIR SAMPLING PATHSFORWARD.................. 24 ATTACHMENT 2: INVESTIGATION OF HVAC UNITS............. 26 ATTACHMENT 3: SURFACE WIPE SAMPLING RESULTS ........... 30 WIPE SAMPLING CONCLUSIONS/PATHSFORWARD............... 36 FIGURE 1: ROOF HVAC SAMPLING LOCATIONS (AIR) ........... 37 FIGURE 2: ROOF SAMPLING LOCATIONS (WIPE) ........... 38 FIGURE 3: PERCENT RECOVERY OF WIPE SAMPLES........... 39 FIGURE 4: AVERAGE VALUES AT ROOF LOCATIONS........... 40 REFERENCES ......................................... 41 RJ202J183 EID093253 EID137017 C-8 SAMPLING PROJECT PAGE 3 OP 41 In response to the Summary of 1995 C-8 Blood Testing (Playtls, 1995) results, and subsequent 1996 Industrial Hygiene Follow-up Report (Playtls, 1996), an extensive sampling campaign for C-8 in air and on surfaces (wipe testing) was conducted in Teflon* areas.

AR226-2706 28 AR226-2706 Society of Environmental Toxicology & Chemistry Summary of DuPont Presentations North American World Congress November 13-18, 2004 Portland, OR Biotransformation of ,4C-labeled Fluorotelomer substances by microorganisms from activated sludge or soil.