CD 21 — AR226-2111-3000

EPA administrative record segment: CD-21--AR226-2111-3000 (887 documents).

Page 8 of 9 — 887 documents
Title / Summary Year AR226 Docket Hash ID Pages
This document is a final report validating the use of liquid chromatography tandem mass spectrometry (LC/MS/MS) for analyzing perfluorooctanoic acid (PFOA) in groundwater and surface waters from the Chambers Works wastewater treatment facility. AR226-2617 0qxeBknY2KpEV9jeDLQZMyr1J 17
This document is a final report analyzing perfluorooctanoic acid (PFOA) in wastewater samples from the Chambers Works wastewater treatment facility, detailing the results of the analyses conducted using liquid chromatography tandem mass spectrometry (LC/MS/MS). AR226-2618 ByqNO1N02p1qdnRVrdYr10rLL 12
The document is an environmental assessment report from DuPont regarding PFOA levels in air and water at their Telomer manufacturing sites, specifically focusing on data analysis, air dispersion modeling, and groundwater sampling. AR226-2614 LKEZOpomexyaL1840mDQOo195 80
This document is a final report evaluating carbon adsorption isotherms for perfluorooctanoic acid (PFOA) in samples from the Chambers Works wastewater treatment facility, indicating that the activated carbon used effectively adsorbs PFOA. AR226-2619 Vj5BVQVo69oL4q6q0E2Va94qg 24
The document provides supplemental data on PFOS levels from groundwater and river water sampling near DuPont's Chambers Works facility, indicating that PFOS was detected at low levels in specific monitoring wells, while no PFOS was found in interior wells and there is no history of PFOS manufacturing at the site. AR226-2620 LJ8RaGdvxpZLZyqJvDqwwjJj7 13
This document details the use of the ISC3 model to calculate ambient air concentrations of C8 emissions from the Chambers Works site, including modeling methodology and emission source information. AR226-2622 nkpv55qdp1B3yqVx9np6Drko8 12
This document appears to be a sampling report detailing various surface water samples collected on multiple dates in June 2003, including analyses for PFOS and other analytes. AR226-2621 qaYJK8VbVy9jaJeNgkQ02KzYk 20
The document outlines the dispersion modeling of APFO emissions from a stack at the Circleville site using the U.S. EPA's Screen3 model, detailing the emission parameters and the methodology for determining the impact of building downwash on dispersion. AR226-2623 pBJkgMmVae3kGnrbX8E5pwDoD 4
In July 2004, groundwater and effluent samples were collected at the DuPont Circleville Plant in Ohio to establish baseline concentrations of perfluorooctanoate ion (PFOA) from two recovery wells, three production wells, and two outfalls. AR226-2624 ZnyK0rv5xox451ObzzZ4Vba2O 5
On August 30, 2004, groundwater samples from the Earnhart Hills Public Water System in Circleville, Ohio, were tested for perfluorooctanoic acid (PFOA), and all results were non-detectable at concentrations below 0.01 µg/L. AR226-2625 DDY06EyzNgeGvG7j472xm0Gp5 10
This document contains analytical results for various water samples collected in July and August 2004, specifically measuring the presence of FC-143, with results reported in ng/L. AR226-2626 2GV643KLq3OxVJaadjopV51R 5
The document reports groundwater and surface water sampling results for perfluorinated compounds (C8) near the Mer9ede River, indicating varying concentrations and suggesting the need for an action plan to reduce emissions from DuPont. AR226-2627 Rw4Lgn42mLjx21zvYZvZ6Q1X 5
The document presents chemical analysis data of PFOA concentrations in groundwater from DuPont monitoring wells over the period from 1993 to 1996, indicating varying levels of contamination. AR226-2628 qaKOno4b45p6Yb6Y38xd5NzRM 2
The document details the modeling methodology and results for ambient air concentrations of PFOA emissions from a DuPont facility in Dordrecht, indicating a maximum concentration of 0.057 µg/m³, which is significantly below the regulatory goal of 1.0 µg/m³. AR226-2630 253y6qZGw6a191bzr20Zg2M5 5
The document summarizes groundwater sampling results from the Dordrecht Works in March 2003, revealing varying concentrations of PFOA in multiple monitoring wells, with the highest recorded level at 7,430 µg/L. AR226-2629 NEp25NNY1rgNB5VvRRa9QYE2y 14
The document details the modeling methodology and results for PFOA emissions from a DuPont site in the Netherlands, using the ISCST3 model to estimate ambient air concentrations based on specific stack parameters and emission rates. AR226-2631 bZr0JBXOjLXk7x3OqB9Gq7QZ 6
The document details groundwater sampling results from March 2003, indicating high concentrations of perfluorinated compound FC-143, with values reaching up to 7,430,000 ng/L in various samples. AR226-2632 JJDr4582x5jkaweD3BMoL2rnB 5
The document details the January 2003 baseline sampling of groundwater and wastewater at the DuPont Fayetteville Works in North Carolina to establish initial conditions for the production of APFO (C-8), including the methodology for sampling and monitoring well conditions. AR226-2634 6BQ1gGdaLj8Y5qbRbvyNDM4Y3 6
The document details an air quality dispersion modeling analysis of ammonium perfluorooctanoate (C8) emissions from the DuPont Fayetteville facility, conducted in accordance with U.S. EPA guidelines, utilizing five years of meteorological data to assess the impact of emissions. AR226-2635 JNqO31x4zxNEbLqDQy3gzvkma 7
The document details the March 2003 groundwater and wastewater sampling conducted at the DuPont Fayetteville Works to establish baseline conditions during the initial activation of APFO (C-8) production, including the collection of samples from four monitoring wells and Outfall-002. AR226-2636 wznZRXO0LXLGLK0rRQ0xxgjD 5
This document appears to be a sampling report for Project Fay, detailing various groundwater and surface water samples collected between January and July 2004, including specific sample identifiers and types. AR226-2638 wDk2re7weyr0OLEpM52eMjjw6 5
The document discusses water sampling data related to the production of Forfac telomer at DuPont, revealing that samples taken during plant production contained PFOA at levels ranging from 1 to 9 ppb, while bench scale simulations showed levels up to 449 ppb. AR226-2639 j8Kmb45V6dXjjrLxn77rG58O 5
The document presents groundwater sampling results from Shimizu Works conducted between August 5-7, 2002, detailing the analytical findings of various volatile organic compounds (VOCs) and metals, with specific concentrations noted for several contaminants, including significant levels of tetrachloroethylene. AR226-2640 wqr1BpVpD3koGpB9nJ1KkV9yD 5
The document outlines the modeling methodology and results for ambient air concentrations of pollutants, specifically focusing on emissions from DuPont's Shimizu site, using the Industrial Source Complex Short Term 3 (ISCST3) model to assess PFOA emissions based on various operational parameters. AR226-2641 ExEG2V5xpnNOjG4x5GazRD97L 6
The document presents modeling results for perfluorooctanoic acid (PFOA) concentrations at the Shimizu plant for the years 1997 to 1999 under various scenarios, indicating maximum annual average concentrations occurring at the plant fenceline. AR226-2642 kDYG15nxz8bEYo1jD6qO8M79n 11
The document is a Phase I Supplemental RCRA Facility Investigation Report for DuPont Fayetteville Works in Fayetteville, North Carolina, focusing on the assessment of environmental conditions related to the facility's operations, including the management of perfluorinated compounds like PFOA and PFOS. AR226-2637 3QwkL2RQxyB572y9Mkejeg4D3 59
This document reports groundwater sampling results from multiple wells conducted on August 6, 2002, indicating varying concentrations of FC-143 (a perfluorinated compound) with the highest concentration recorded at 1,540,000 NG/L. AR226-2643 6w8YdYMbQRjrzgybkxEkVx0D9 4
This document outlines the sampling procedures for analyzing C8 (PFOA) in wastewater samples from the Spruance Teflon process and wastewater treatment system, detailing specific sampling locations and coordination with laboratory personnel to ensure sample integrity. AR226-2644 Z2Ekp8bep1gZVXzypkOEVm3V 5
The document details the processing and disposal of C8 (PFOA) during yarn production, indicating that 5% of C8 evaporates during sintering, with 80% of that being captured by exhaust scrubbing and sent to the process sewer. AR226-2645 g2Bdm8X1LrBzXrDwpv0O6jzye 3
The document discusses Calgon Carbon's adsorption isotherm test results for ammonium perfluorooctanoate (C-8) and outlines plans by DuPont to use carbon adsorption technology for removing C-8 from wastewater. AR226-2647 qddvMzkakyjxX6jMaGL1eJb2K 13
The document is a technical report from DuPont detailing the concentration of perfluoro octanoic acid (C8) in wastewater, indicating that the company's Community Exposure Guideline is set at 1 ppb, with an average expected concentration in the James River of 0.1 ppb, potentially exceeding the guideline only during extreme low flow conditions. AR226-2646 jyGdvDn6oOJgD4LVkZYy5wrRR 29
This report details the dispersion modeling of PFOA emissions at the DuPont Washington Works site, utilizing EPA's ISC3 model to support interim updates to permits and address previously omitted emission points. AR226-2650 v1pLzjka2Xp60D6bXM5aGxjvE 7
The document details the use of the ISC3 model to calculate ambient air concentrations and deposition rates of C8 emissions from the Washington Works site, incorporating data from a Consent Order and additional emission points, with specific focus on vapor and particle phase emissions. AR226-2649 9JJ6qEeZYgey4qn2Bz1o38Zmp 13
This document outlines a verification study plan for air dispersion modeling and ambient air sampling of perfluorooctoanoic acid (PFOA) at the E. I. DuPont manufacturing facility in Washington, West Virginia, aiming to compare modeled predictions with actual measured concentrations. AR226-2651 OEXOyYx7ZR2a469kgBkYyq871 15
DuPont conducted an air dispersion modeling analysis of APFO emissions from its Washington Works facility in Parkersburg, West Virginia, to predict long-term ambient air concentrations based on actual emissions from September 2002 to August 2003. AR226-2652 NGEBVY8YL6EZ7Y51bVr9RzZn8 9
This report details dispersion modeling for the DuPont Washington Works facility to demonstrate compliance with the C-8 assessment of toxicity for PFOA emissions, ensuring they do not exceed the recommended airborne screening level of 1.0 µg/m³ at the property line. AR226-2653 NGzNb8aYzgqBmmyJwGXq7y0r8 7
This report details dispersion modeling conducted for the DuPont Washington Works facility to ensure compliance with the C-8 assessment of toxicity airborne screening level for PFOA emissions, demonstrating that the modified emission limits meet the required standard of 1.0 µg/m³ at the property line. AR226-2654 2j5QEDDoJk3DDoweMVzQMB7N 7
This report details the dispersion modeling conducted for the DuPont Washington Works facility to ensure compliance with the airborne screening level of 1.0 µg/m³ for perfluorooctanoic acid (PFOA) emissions as per the C-8 assessment of toxicity, incorporating revised stack parameters and modeling methodologies. AR226-2655 QgVK4188QvjZqyqjLZB238xV7 7
This technical report submitted to Du Pont Company details the in-situ treatment of surfactant-contaminated aquifers using electrochemical processes, focusing on groundwater quality analysis related to the treatment. AR226-2648 O3vMYMk6zM39pYj6B4QM7644X 163
This report details dispersion modeling conducted for the DuPont Washington Works facility to ensure compliance with the C-8 assessment of toxicity airborne screening level for PFOA emissions, incorporating revised stack parameters and reflecting changes due to a modified fenceline along the Ohio River. AR226-2656 zz9m0Nwazyap9MqxKBg2XZM2R 7
This report details the dispersion modeling of APFO emissions conducted at the DuPont Washington Works site to support updates to R13 permits 1953A and 2365B, utilizing EPA's ISC3 model and incorporating building downwash effects. AR226-2657 qkZ0V859jmJ62Dvb9QRnx2gNk 7
The document is an analytical report from Exygen Research detailing the air sampling program conducted by DuPont Corporation, specifically analyzing samples for Perfluorooctanoic Acid (PFOA) using liquid chromatography/mass spectrometry (LCMS). AR226-2658 GKaxkq2m8Q68vr1nJnrNMNwv7 19
This analytical report details the air sampling program conducted by DuPont at their Washington Works facility, where seven air samples were analyzed for Perfluorooctanoic Acid (PFOA) using liquid chromatography/mass spectrometry (LCMS). AR226-2659 O14Yaqg6Z3ybr0zjgqE8dk12e 18
This analytical report details the air sampling program conducted by DuPont Corporation, where seven air samples were analyzed for Perfluorooctanoic Acid (PFOA) using liquid chromatography/mass spectrometry (LCMS) by Exygen Research. AR226-2660 eLJvJxkp10rwzzgEEg8w4Kry 18
The document is an analytical report from Exygen Research detailing the air sampling program for Perfluorooctanoic Acid (PFOA) conducted by DuPont Corporation, which includes sample collection and analysis methods, with one sample reported as having collection issues. AR226-2661 3JnDm8eVdk2zYzYe9nadG5KDO 18
The document is an air sampling report from Exygen Research analyzing samples collected from DuPont Washington Works for Perfluorooctanoic Acid (PFOA) using liquid chromatography mass spectrometry, noting that one sample had collection issues and no results were reported for it. AR226-2662 r60Goa9wkRaOq4yXYB4Q5mNRV 18
The document reports on a study conducted by Haskell Laboratory for Toxicology and Industrial Medicine, which found that ammonium perfluorooctanoate (APFO) did not demonstrate teratogenic potential in rats, although maternal toxicity and some adverse effects were observed at the highest exposure levels. AR226-2818 5DxMZv2w1N5rwdra0gmLdEkw4 34
The document is a report from Haskell Laboratory for Toxicology and Industrial Medicine evaluating the toxicity of a substance, likely related to PFOA or PFOS, in male rats and rabbits, indicating that the tested compound does not classify as a class "B" poison under ICC regulations. AR226-2819 QkXKZQ4qzGdaro6yRY24nNM6E 1
The document reports on a subacute oral toxicity study of PFOA conducted by E. I. du Pont de Nemours and Company, indicating that doses of 5,000 mg/kg/day resulted in mortality and toxic signs such as weight loss and diarrhea in test rats. AR226-2820 gDDLzjJ6LYa4pVjb1B3ep3DKG 3
The document reports on the results of subacute oral tests and acute tests on rats and rabbits using test materials H-3824 and H-3825, indicating slight toxicity signs and weight changes in rats and no mortality in rabbits at high doses, suggesting a low acute toxicity profile for the tested perfluorinated compounds. AR226-2821 995rQwrdegkRXNwrgNoL29goD 3
The document reports on toxicity testing of a perfluorinated compound mixture, revealing that exposure to concentrations of 40,000 ppm resulted in high mortality and significant respiratory distress in rats, while lower concentrations showed varying survival rates and clinical signs of toxicity. AR226-2822 zQ5bLadpX8EGd09V3M9KBXgr3 5
The document is a laboratory report detailing the results of an acute oral toxicity study on a suspension containing a perfluorinated compound, indicating nonlethal effects at various doses, with observed symptoms including diarrhea and weight loss at higher doses. AR226-2826 x5K23QqOxwkqpqO47o097G0rb 3
The document reports on an acute inhalation toxicity study conducted by E. I. du Pont de Nemours and Company at Haskell Laboratory, which evaluated the effects of a test material on male rats, revealing varying mortality rates and clinical signs such as irregular respiration and convulsions, with specific concentrations of the test material measured during exposure. AR226-2827 XwDY6XrObE78q90pV1e840Ky 2
The document reports on an acute oral toxicity test of an unspecified organic chemical, likely related to PFOA or PFOS, conducted by Haskell Laboratory, which found that the approximate lethal dose (ALD) for young adult male rats is 17,000 mg/kg when administered by intragastric intubation. AR226-2828 1gvz2bNOkYLzvygxRd3L0NvQm 2
The Haskell Laboratory Report No. 244-71 presents results from acute and subacute oral toxicity tests on a perfluorinated compound, indicating no mortality or significant organ changes in young adult rats at various doses, with liver weights measured post-dosing. AR226-2829 k9v1eONYB8Gv0XzLvLbKeR3wE 3
The document reports on acute oral toxicity testing of a test material submitted by E. I. du Pont de Nemours and Company, indicating that no clinical signs were observed in young adult ChR-CD male rats after administration of various doses, with liver weights recorded post-sacrifice. AR226-2830 NGrk5d2VvjQgMgOrmwjVk7M8b 3
The document reports on acute and subacute oral toxicity tests of a test material, likely related to PFOA or PFOS, administered to rats, indicating no mortality and no compound-related abnormalities in various organs after dosing. AR226-2831 reMkbqe0qE1zm7K9ZZdKG2E4r 3
The document is a report from Haskell Laboratory detailing primary skin irritation and sensitization tests on guinea pigs using a test material, likely related to PFOA or PFOS, which showed no sensitization or significant irritation at the concentrations tested. AR226-2835 dn0eERezYv2aJjDzOpVE8aeB5 2
This is a Haskell Laboratory report (No. 275-73) detailing primary skin irritation and sensitization tests conducted on guinea pigs for E. I. du Pont de Nemours and Company. AR226-2836 Bym8ON3npEz4xyZ2OXn344Ob8 2
This analytical report details the air sampling program conducted by DuPont Washington Works, where seven air samples were analyzed for Perfluorooctanoic Acid (PFOA) using liquid chromatography/mass spectrometry, with one sample excluded due to collection issues. AR226-2663 GmkE943qGRX1XJ2d62wgr9Xkm 18
The document is an analytical report from Exygen Research detailing the air sampling program conducted by DuPont Washington Works, specifically analyzing samples for Perfluorooctanoic Acid (PFOA) using liquid chromatography/mass spectrometry (LCMS). AR226-2664 9JbvQ0dj2V3D2aXe1ok1Rd1w6 21
This analytical report details the air sampling program conducted by DuPont at their Washington Works facility, specifically analyzing samples for Perfluorooctanoic Acid (PFOA) using liquid chromatography/mass spectrometry (LCMS), with one sample excluded due to a sampler malfunction. AR226-2665 NG4rrKj5JKyoGO8D8eLnjRbo8 18
This analytical report details the air sampling program conducted by DuPont at the Washington Works facility, specifically analyzing samples for Perfluorooctanoic Acid (PFOA) using liquid chromatography/mass spectrometry (LCMS). AR226-2666 GKwN0jdVnX3zZvdxqdpzGVa84 17
This document outlines a draft test plan for measuring the particle size distribution of airborne PFOA and APFO emissions from the E. I. DuPont manufacturing facility in Parkersburg, West Virginia, to understand their transport in ambient air. AR226-2667 r67YaZwMrEOm9Nwj5Rq1j86pa 14
The document summarizes a particle size distribution (PSD) analysis of PFOA in ambient air conducted at the DuPont Washington Works site, revealing an average PSD and 72-hour average ambient air concentrations that compare favorably with previous measurements, indicating acceptable precision in the sampling methodology. AR226-2668 91NEyNaq90ovy5VwKNVLRVMeV 22
DuPont submitted air monitoring data related to PFOA from their Washington Works facility in West Virginia to the EPA, including intermediate results from an Air Modeling Verification Study and particle size distribution analysis for PFOA in ambient air. AR226-2670 g2mgjaam89Ga43MwRqopg63yq 8
The document is a revised air dispersion modeling analysis of APFO emissions conducted by DuPont at its Washington Works facility in Parkersburg, West Virginia, covering the period from September 2002 to August 2003, and includes updates to stack parameters based on testing results. AR226-2669 6RpkZ1oQpqpVq8y5Z7eezEjm 10
to analyze the vertical mobility of PFOA through soil columns to understand its leaching behavior in response to artificial rain, as part of a study conducted by DuPont in August 2004. AR226-2671 6RxveXvNpMmvn7Dr4bwG2XVm6 42
The document reports on a primary irritation test conducted on guinea pigs using a 50% concentration of an unspecified perfluorinated compound, indicating no sensitization reactions were observed in the test subjects. AR226-2837 N2jVZNzRLzXyonKkdKqK4gw58 2
This is a laboratory report detailing the acute toxicity bioassay of compound 8230 on rainbow trout, conducted by Bionomics, Inc. in Wareham, Massachusetts, with results indicating a TL^0 value greater than 1000 mg/l for both 24-hour and 96-hour exposure periods. AR226-2838 060r2ELLxD42rM7yR21nNL4oV 7
The Haskell Laboratory Report No. 372-73 details an acute oral toxicity test of a perfluorinated compound in young adult ChR-CD male rats, finding it to be slightly toxic with an approximate lethal dose of 1,500 mg/kg and causing liver enlargement at doses of 450 mg/kg and above. AR226-2841 RpMQx38Ng90xMxpJZpEX2wpYv 2
The document reports on eye irritation tests conducted on a sample identified as H-8524 for E. I. Du Pont de Nemours & Company, indicating that both washed and unwashed eyes of albino rabbits showed minimally irritating effects with maximum irritation scores of 11.0 and 15.0, respectively. AR226-2844 bJvX8x8n8LmD4vXVRxd4xbEO 10
The document is a Haskell Laboratory report detailing an eye irritation test conducted on rabbits using a test material identified as Haskell No. 9805, which is associated with E. I. du Pont, de Nemours and Company, and shows mild ocular effects such as redness and swelling. AR226-2845 pp4YR6nz3Zn4QG58DxZvo1MMD 2
The document reports on primary skin irritation and sensitization tests conducted by Du Pont de Nemours and Company on a test material, indicating that the substance produced mild reactions in guinea pigs. AR226-2846 OEn9L6n81LMDvjNMmLDKYo8Bv 2
The document reports on an acute oral toxicity test conducted by Haskell Laboratory for Toxicology and Industrial Medicine, detailing the lethal and non-lethal effects of a substance (likely PFOA or PFOS) at various doses, with findings of mortality and clinical signs such as lethargy and diarrhea at doses as low as 5,000 mg/kg. AR226-2847 gE2ogg0yZa6aRJqogNxXn0N39 3
The document reports on a study conducted by E. I. du Pont de Nemours and Company at the Haskell Laboratory, which involved exposing ten healthy male beagle dogs to a test mixture containing PFOA, with the aim of monitoring their electrocardiograms and analyzing air samples for PFOA concentration. AR226-2848 2RywbD2Qqv8xDg1maaYmbqVpL 2
The Haskell Laboratory Report No. 68-73 details a ninety-day feeding study of PFOA in rats and dogs, revealing no significant toxicity at lower levels, but indicating that higher dietary levels (750 and 2,500 ppm) resulted in decreased erythrocyte counts and organ weight changes, particularly in male rats, with some reversible histological changes observed in the livers of those AR226-2832 LprRmjzRN257gLqrJ2GJ1bJkq 95
This document contains analytical results for PFOA from air sampling conducted in 2003 and 2004, with multiple samples reporting concentrations below detection limits. AR226-2673 baran79BGNqQNr8dpBBOGxEZg 7
The document reports on a study evaluating the biodegradability of a perfluorinated compound using the closed bottle test, conducted by DuPont and completed in 1995. AR226-2680 bBXVLJ7kxB21x5raj1oMdgJ16 9
This document appears to be a data summary for various water and soil samples analyzed for FC-143, detailing sample dates, types, and concentrations, but lacks a clear report format. AR226-2674 ppNxBQBwwqgawab5rg0rm2Gb7 60
This document contains analytical results for C8 sampling conducted in 1996-2001, detailing various surface water and groundwater samples with measurements of FC-143 concentrations from multiple outfalls and outlets. AR226-2675 150vwe7Ydjxw7vjByKyEVzb95 45
This document appears to be a summary of groundwater sampling results for various wells, including data from multiple years, with a focus on C8 compounds, specifically FC-143. AR226-2672 m4Gazd17779o7drYOQK1ay64 108
The document discusses the biodegradation of C-8 (perfluorooctanoic acid, PFOA) in groundwater, detailing its concentration levels, hydrogeological context, and methods for analyzing its degradation rates and transport in the Lubeck well field. AR226-2682 6byrZ5EM0k6EVXj6QBGzq5DK6 19
This document appears to be a summary of annual C8 sampling results from 1997 to 2000, detailing various groundwater and leachate samples analyzed for the presence of FC-143 by an unspecified laboratory. AR226-2677 jgRaQ5daGegZv16e2Dq92LeO 39
This document appears to be a summary of annual C8 sampling results from various locations, including Lower Pond and Upper Pond, spanning multiple years from 1991 to 2000, but lacks specific analytical content. AR226-2676 1g7Xqmrv9bD95kaQB92Bmnadq 48
This is a report from Huntingdon Life Sciences detailing a preliminary test on abiotic degradation through hydrolysis as a function of pH, including compliance with good laboratory practice standards and quality assurance statements. AR226-2683 b5D8NVv66oGmoVDYOy3nnwozg 13
The document reports on adsorption-desorption screening studies of ammonium perfluorooctanoate (APFO) conducted by E. I. du Pont de Nemours and Company, finding that five out of nine tested materials significantly adsorbed APFO, with most of the adsorbed APFO not desorbing after washing. AR226-2684 G6gagDvZ5RpN5RpZq1dwNrzbq 17
The document discusses the thermal stability of PTFE and FEP, highlighting that previous estimates of HFP and TFA production from PTFE pyrolysis at 500°C were significantly overestimated, necessitating further research to provide accurate data for internal and external inquiries regarding these fluorinated compounds. AR226-2685 a13BnXDbgMm8gVwXV0v9qEp2N 8
The document reports the results of analyses for perfluorooctanoic acid (PFOA) in soil and groundwater samples collected from the E. I. DuPont de Nemours and Company facility in Parkersburg, West Virginia, indicating PFOA concentrations ranging from 49 to 53 ppb in groundwater samples. AR226-2681 KR18a5onYxMJwpxMm2B26p9gX 127
The Haskell Laboratory report No. 825-76 details an eye irritation test conducted on rabbits using a test material from E. I. du Pont de Nemours and Company, which resulted in temporary mild ocular effects, including slight corneal opacity and conjunctivitis, with full recovery observed within 7 days. AR226-2852 a1pOVKYN05gqoQyRv400N2R99 2
The Haskell Laboratory Report No. 1003-76 indicates that the tested material (Haskell No. 10,642) produced no irritation or significant sensitization in male albino guinea pigs when applied at 100% concentration and as a 10% aqueous solution, although it may be considered a very weak sensitizer based on the observed reactions. AR226-2854 0gnoYEdQoZBn3KywJV43dRRzm 2
The document is a laboratory report from Haskell Laboratory detailing a skin irritation and sensitization test conducted on guinea pigs using a textile fiber material, with findings indicating varying levels of negative reactions to different concentrations of the test substance. AR226-2857 g2Er9MNJLLbdzNdgKN5rwrGQa 2
The document is a report from Haskell Laboratory regarding a skin irritation study involving textile fibers treated with a substance, indicating potential irritation and sensitization risks for PFOA when applied to human skin, suggesting further testing before commercialization. AR226-2858 r6yL792yK1d34x3MbYaYM277 1
The document reports on a mutagenicity assay conducted by E. I. du Pont de Nemours and Company at the Haskell Laboratory, testing a perfluorinated compound using the Salmonella/microsome assay to evaluate its potential toxicity. AR226-2859 rXdmQXaYKLnRdG4oQKG2bwer 4
This document is a laboratory report from DuPont's Haskell Laboratory detailing skin irritation and sensitization tests conducted on guinea pigs using a substance, likely related to PFOA or PFOS, with results indicating no significant irritation or sensitization responses observed in the test subjects. AR226-2862 xzpDb7poO0ZQDZDbG8ExdpoD0 2
The document is a report from E. I. du Pont de Nemours and Company detailing an eye irritation test conducted on rabbits using Haskell No. I1336, which showed no significant ocular effects on the cornea and mild conjunctival redness and discharge after treatment. AR226-2861 omo5gr7gJvYy2nR97OJ7EYvXR 2
This document reports on an acute oral toxicity test conducted by Du Pont de Nemours and Company on a substance, likely PFOA, indicating that lethal doses resulted in lethargy and prostration, with an approximate lethal dose (ALD) greater than 350 mg/kg. AR226-2863 mBe8Mj1YYEedj32gm7DLBq6NB 3
The document reports that the oral toxicity study of a substance, likely PFOA, administered to young adult ChR-CD male rats resulted in an LD50 greater than 25,000 mg/kg, with observed clinical signs of prostration and weight loss. AR226-2864 85KkjNzjQ5K99gG6wqxq1wv1B 1
The document reports on acute oral toxicity tests of a substance (unspecified) conducted by IFREB on rats, indicating no toxicological risk (LD50 > 20 g/kg), and tolerance tests on rabbits showing the substance as an ocular irritant but non-irritant for primary cutaneous irritation. AR226-2856 LeXN0RdGwge4Zr7p7D75gQNw 48
The document reports on an oral LD50 toxicity test conducted by E. I. du Pont de Nemours and Company on a test material, revealing that the LD50 value for the substance was determined to be 13,792 mg/kg based on mortality data from young adult ChR-CD male rats. AR226-2866 ExBZ1MV6Lww11VN5yoDyBQ9dV 3