Secretariat of the Stockholm Convention page 1 Annex F Questionnaire (one per chemical) Chemical name (as used by the POPs Review Committee (POPRC)) PFOS (Perfluorooctane Sulfonate) CAS No.: 1763-23-1 (parent sulfonic acid) CAS No. 2795-39-3 (Potassium salt) CAS No. 70225-14-8 (Diethanolamine salt) CAS No. 29081-56-9 (Ammonium salt) CAS No. 29457-72-5 (Lithium salt) Explanatory note: 1. This chemical is undergoing a risk management evaluation. It has already satisfied the screening criteria set out in paragraph 4 (a) of Article 8 of the Convention. A risk profile has also been completed for this chemical in accordance with paragraph 6 of Article 8 and with Annex E to the Convention. Introductory information Name of the submitting Party/observer Germany Contact details (name, telephone, e-mail) of the submitting Party/observer Dr. Steffi Richter Date of submission 07.02.2007 Federal Environment Agency Wörlitzer Platz 1 06844 Dessau Tel: +49 340 2103 3275 FAX: +49 340 2104 3275 steffi.richter@uba.de Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 2 Additional Annex E information - no production in Germany, but import of 20 – 50 t in Germany in 2003 < 22 t in Italy (i) Production data, including quantity and location (Source: Results of survey on production and use of PFOS and PFAO, related Substances and products/mixtures containing these substances, OECD, ENV/JM/MONO 2005, 1 >>> document attached) - PFOS based substances are no longer used in the manufacture of fire fighting foams in Germany. (Source: The Scientific Committee on Health and Environment Risks (SCHER) opinion on RPA´s report “PFOS Risk reduction strategy and analysis of advantages and drwabacks” Final report, 2004.) - Dominating uses in the past: to provide soil, oil and water restistance to textiles, apparels, home furnishings and upholstery, carpets and leather products. According to the informations available from the meeting of the TF of the POPsProtocol under LRATP in 2006, PFOS is not longer used for these applications. (Source: Working Document, “Overview of existing information on PFOS production, use, emissions and pathsways to the environment”.) (ii) Uses - Current uses: in fire fighting foams, photographic industry, photolithography and semiconductors, hydraulic fluids and in metal plating industry. (Source: The Scientific Committee on Health and Environment Risks (SCHER) opinion on RPA´s report “PFOS Risk reduction strategy and analysis of advantages and drwabacks” Final report, 2004.) >>> Further information and overviews on on uses and quantities from PFOS-related substances in the EU are given in the following documents: - RPA & BRE´s report “ Proposal for Regulation on PFOSrealted substances”, September 2004. - The Scientific Committee on Health and Environment Risks (SCHER) opinion on RPA´s report “PFOS Risk reduction strategy and analysis of advantages and drwabacks” Final report, 2004. - sft: Action plan on PFAS and PFOS related substances, Norway, 2005. (iii) Releases, such as discharges, losses and emissions - Currently, no information about releases in Germany available. However, several estimates are avilable for the EU: Metal plating: The Risk reduction strategy assumes 100% release into the environment (RPA´s Report on PFOS, Final report 2004.) industry has calculated a total emission of 517 kg in the EU based from data from a German plant and extrapolation to the European situation Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 3 Fire fighting foams: Estimated to be 570 kg PFOS-acid/year , (In 2005, the accident in Buncefield (UK), might have lead to a much higher release.) Photographic industry: Estimated to be about 6.75 kg PFOSrelated substance /year from film development, and 1.02 kg PFOS-acid/year into waste water and 0.051 kg PFOS-acid/yaer into the air from manufacturing of films. Semiconductor industry: If complete elimination of the use in developers is assumed (as indicated by industry), about 43 kg PFOS-related substances /yaer are estimated to be released to the environment. Aviation industry: Releases into water were estimated to be 3.94 kg PFOS-acid/year, and to soil 9.2 kg PFOS-acid/year. (Source: The Scientific Committee on Health and Environment Risks (SCHER) opinion on RPA´s report “PFOS Risk reduction strategy and analysis of advantages and drwabacks” Final report, 2004.) Explanatory note: 2. This information was requested for preparation of the risk profile in accordance with Annex E of the Convention. The POPRC would like to collect more information on these items. If you have additional or updated information, kindly provide it. A. Efficacy and efficiency of possible control measures in meeting risk reduction goals (provide summary information and relevant references): (i) Describe possible control measures The total production of PFOS has been significantly reduced from 2000 to 2005 due to a phase out by the main producer in the US (see also “uses”). However, by our current knowledge the Italian company Miteni does still produce PFOS. For most uses, more environmental friendly alternatives are available. For some purposes, however, still a phase out is needed and needs to be controlled, e.g. a programme need to be etablished for the destruction of the existing stocks of fire fighting foams containing PFOS. For other uses, e.g. in semi-conductor industry, no alternatives are yet known/explored. here, the scientific research on alternatives need to proceed and the current use (estimated 470 kg/year in the EU) needs to be controlled. The SIA (Semiconductor Industry Association) is cooperating and provided information on the situation and on possible controll measures at the TF-meeting under the POPsProtocol of LRTAP in 2006 (see Document attached). (Sources: Working Documents from the POPs-Protocol TF meeting in 2006). Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention (ii) Technical feasibility page 4 fire fighting foams: Alternatives need to be further investigated; destruction of currents stocks under discussion (RPA & BRE report, 2004). (A lot of the UK stocks have possibly been used after the Buncefield accident in 2005.) - no substitutes known yet for uses in semiconductor industry, photography and avaitaion industry; control in semiconductor industry seems possible: see “SIASEMI U.S. PFAS Mass Balance”, presentation given by SIA at the POPs-Protocol TF in 2006 (document attached). (Sources: - RPA & BRE report, 2004 - Working document on Exploration of management Options of PFOS, POPs-Protocol TF-meeting in 2006) (iii) Costs, including environmental and health costs An evaluation of costs arising when replacing PFOS in different uses has been elaborated by the Swedish expert on POPs, Bo Walström, and presented to the POPs-Protocol TF at it´s last meeting in 2006. Explanatory notes: 3. If relevant, provide information on uses for which there may be no suitable alternative or for which the analysis of socio-economic factors justify the inclusion of an exemption when considering listing decisions under the Convention. Detail the negative impacts on society that could result if no exemption were permitted. 4. “Risk reduction goals” could refer to targets or goals to reduce or eliminate releases from intentional production and use, unintentional production, stockpiles, wastes, and to reduce or avoid risks associated with long-range environment transport. 5. Provide the costs and benefits of implementing the control measure, including environmental and health costs and benefits. 6. Where relevant and possible “costs” should be expressed in US dollars per year. B. Alternatives (products and processes) (provide summary information and relevant references): (i) Describe alternatives An evaluation of costs arising when replacing PFOS in different uses has been elaborated by the Swedish expert on POPs, Bo Walström, and presented to the POPs-Protocol TF at it´s last meeting in 2006. (ii) Technical feasibility - (iii) Costs, including environmental and health costs An evaluation of costs arising when replacing PFOS in different uses has been elaborated by the Swedish expert on POPs, Bo Walström, and presented to the POPs-Protocol TF at it´s last meeting in 2006. (iv) Efficacy Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 5 (v) Risk - (vi) Availability - (vii) Accessibility - Explanatory notes: 7. Provide a brief description of the alternative product or process and, if appropriate, the sector(s), use(s) or user(s) for which it would be relevant. 8. If several alternatives could be envisaged for the chemical under consideration, including non-chemical alternatives, provide information under this section for each alternative. 9. Specify for each proposed alternative whether it has actually been implemented (and give details), whether it has only reached the trial stage (again, with details) or whether it is just a proposal. 10. The evaluation of the efficacy should include any information on the performance, benefits, costs, and limitations of potential alternatives. 11. Specify if the information provided is connected to the specific needs and circumstances of developing countries. 12. The evaluation of the risk of the alternative should include any information on whether the proposed alternative has been thoroughly tested or evaluated in order to avoid inadvertently increasing risks to human health and the environment. The evaluation should include any information on potential risks associated with untested alternatives and any increased risk over the life-cycle of the alternative, including manufacture, distribution, use, maintenance and disposal. 13. If the alternative has not been tried or tested, information on projected impacts may also be useful. 14. Information or comments on improving the availability and accessibility of alternatives may also be useful. C. Positive and/or negative impacts on society of implementing possible control measures (provide summary information and relevant references): (i) Health, including public, environmental and occupational health A positive impact on human health and on the environment can be expected from a ban of PFOS on a global scale. The stablishment of further controll measures for those uses of PFOS, where no substitution is yet possible, will presumedly contribute positively to human health and the environment, especially concerning reprotoxicity and blood values. (ii) Agriculture, including aquaculture and forestry A positive impact on human health and on the environment can be expected from a ban of PFOS on a global scale. The stablishment of further controll measures for those uses of PFOS, where no substitution is yet possible, will presumedly contribute positively to nature. \ (iii) Biota (biodiversity) As the persistent, bioaccumulative and toxic properties of PFOS were shown under the POPs-Protocol and under the Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 6 Stockholm Convention, a positive impact on biota from a ban/restriction of the substance can be expected. (iv) Economic aspects An evaluation of costs arising when replacing PFOS in different uses has been elaborated by the Swedish expert on POPs, Bo Walström, and presented to the POPs-Protocol TF at it´s last meeting in 2006. (v) Movement towards sustainable development As the persistent, bioaccumulative and toxic properties of PFOS as well as it´s potential for a long-range transboundary transport were shown under the POPs-Protocol and under the Stockholm Convention, a positive impact on a globally sustainable development from a ban/restriction of the substance is be expected. (vi) Social costs - Explanatory notes: 15. Socio-economic considerations could include: Any information on the impact (if any), costs and benefits to the local, national and regional economy, including the manufacturing sector and industrial and other users (e.g., capital costs and benefits associated with the transition to the alternatives); and impacts on agriculture and forestry; Any information on the impact (if any) on the wider society, associated with the transition to alternatives, including the negative and positive impacts on public, environmental, and occupational health. Consideration should also be given to the positive and negative impacts on the natural environment and biodiversity. Information should be provided on how control measures fit within national sustainable development strategies and plans. D. Waste and disposal implications (in particular, obsolete stocks of pesticides and clean-up of contaminated sites) (provide summary information and relevant references): (i) Technical feasibility Although PFOS is not used for the manufacturing of fire fighting foams anymore, there are still stocks of ca. 122 tonnes in the EU (estimated in 2004). (Source: Working Document of the POPS-Protocol TF-mmeting in June 2006) (ii) Costs According to the Swedish expert on POPs, the low cost of destruction of fire fighting foam (1,000 EUR per ton) and the replacement costs of new foam (5,000 EUR per ton) makes it rational to destroy all fire fighting foams. It is cost-effective to destroy tzhe stock when comparing with emission reduction options from other uses. (Source: Working Document of the POPS-Protocol TF-mmeting in June 2006) Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention Explanatory note: 16. Specify if the information provided is connected to the specific needs and circumstances of developing countries. E. Access to information and public education (provide summary information and relevant references): Information can be obtained by everybody from the official websides of the Stockholm Convention and POPs-Protocol as well as from websides and helpdesks of national authorities dealing with chemicals. Explanatory note: 17. Please provide details here of access to information and public education with respect to both control measures and alternatives. F. Status of control and monitoring capacity (provide summary information and relevant references): Explanatory note: 18. With regard to control capacity, the information required is on legislative and institutional frameworks for the chemical under consideration and their enforcement. With regard to monitoring capacity, the information required is on the technical and institutional infrastructure for the environmental monitoring and biomonitoring of the chemical under consideration, not monitoring capacity for alternatives. G. Any national or regional control actions already taken, including information on alternatives, and other relevant risk management information: POP-Protocol, LRTAP (UNECE): PFOS is currently undergoing track-B of the evaluation under the POPs Protocol. - OSPAR: PFOS is included in the List of chemicals of priority action. PFOS is also on the List of Substances of Possible Concern. (www.ospar.org) EU: - The EU Comission has proposed a ban on marketing and use on PFOS in metal salt, halide, amide, and other derivates including polymers fer certain uses (i.e., Proposal for a directive of TheEuropean Parliament and of the Council, relating to restrictions on the marketing and use of the perfluoroctane sulphonates (amendment on Council Directive 76/769/EEC), European Comission, 2005. Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland page 7 Secretariat of the Stockholm Convention page 8 Explanatory notes: 19. Actions or measures taken could include prohibitions, phase-outs, restrictions, cleanup of contaminated sites, waste disposal, economic incentives, and other non-legally binding initiatives. 20. Information could include details on whether these control actions have been cost-effective in providing the desired benefits and have had a measurable impact on reducing levels in the environment and contributed to risk reduction. H. Other relevant information for the risk management evaluation: Explanatory notes: 21. The above list of items is only indicative. Any other relevant information for the risk management evaluation should also be provided. I. Other information requested by the POPRC: [Note to the Secretariat] ___________________ Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 9 Annex III UK Draft List of Compounds Potentially Degrading to PFOS in the Environment RPA & BRE, 2004. Risk & Policy Analysts Limited in association with BRE Environment, Perfluorooctane Sulfonate – Risk reduction strategy and analysis of advantages and drawbacks, Final Report prepared for Department for Environment, Food and Rural Affairs and the Environment Agency for England and Wales Table A1.1: Draft List of Compounds Potentially Degrading to PFOS in the Environment Ref PFOS related substance CAS Number No. 1 307-35-7 1-Octanesulphonyl fluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 2 376-14-7 2-Propenoic acid, 2-methyl-, 2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl ester 3 383-07-3 2-Propenoic acid, 2-[butyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl ester 4 423-82-5 2-Propenoic acid, 2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl ester 5 423-86-9 1-Octanesulphonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-2-propenyl- 6 754-91-6 1-Octanesulphonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 7 1652-63-7 1-Propanaminium, 3-[[(heptadecafluorooctyl)sulphonyl]amino]-N,N,N-trimethyl-, iodide 8 1691-99-2 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)- 9 1763-23-1 1-Octanesulphonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 10 1869-77-8 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulphonyl]-, ethyl ester 11 2250-98-8 1-Octanesulphonamide, N,N',N''- [phosphinylidynetris(oxy-2,1-ethanediyl)]tris[N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 12 2263-09-4 1-Octanesulphonamide, N-butyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)- 13 2795-39-3 1-Octanesulphonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt 14 2991-50-6 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulphonyl]- 15 2991-51-7 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulphonyl]-, potassium salt 16 3820-83-5 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-[2-(phosphonooxy)ethyl]- 17 3871-50-9 Glycine, N-ethyl-N-[(heptadecafluorooctyl)sulphonyl]-, sodium salt 18 4151-50-2 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 19 13417-01-1 1-Octanesulphonamide, N-[3-(dimethylamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 20 14650-24-9 2-Propenoic acid, 2-methyl-, 2- [[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl ester Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 10 Table A1.1: Draft List of Compounds Potentially Degrading to PFOS in the Environment Ref CAS Number PFOS related substance 21 24448-09-7 1-Octanesulphonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-N-methyl- 22 24924-36-5 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-2-propenyl- 23 25268-77-3 2-Propenoic acid, 2-[[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl ester 24 29081-56-9 1-Octanesulphonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, ammonium salt 25 29117-08-6 Poly(oxy-1,2-ethanediyl), .alpha.-[2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl]-.omega.-hydroxy- 26 29457-72-5 1-Octanesulphonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, lithium salt 27 30295-51-3 1-Octanesulphonamide, N-[3-(dimethyloxidoamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro- 28 30381-98-7 1-Octanesulphonamide, N,N'-[phosphinicobis(oxy-2,1-ethanediyl)]bis[N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, ammonium salt 29 31506-32-8 1-Octanesulphonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-methyl- 30 38006-74-5 1-Propanaminium, 3-[[(heptadecafluorooctyl)sulphonyl]amino]-N,N’,N’’-trimethyl-, chloride 31 50598-29-3 1-Octanesulphonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(phenylmethyl)- 32 52550-45-5 Poly(oxy-1,2-ethanediyl), α-[2-[[(heptadecafluorooctyl)sulphonyl]propylamino]ethyl]-ω -hydroxy- 33 56773-42-3 Ethanaminium, N,N’,N’’-triethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-1-octanesulphonic acid (1:1) 34 57589-85-2 Benzoic acid, 2,3,4,5-tetrachloro-6-[[[3- [[(heptadecafluorooctyl)sulphonyl]oxy]phenyl]amino]carbonyl]-, monopotassium salt 35 58920-31-3 2-Propenoic acid, 4-[[(heptadecafluorooctyl)sulphonyl]methylamino]butyl ester 36 61577-14-8 2-Propenoic acid, 2-methyl-, 4-[[(heptadecafluorooctyl)sulphonyl]methylamino]butyl ester 37 61660-12-6 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-[3-(trimethoxysilyl)propyl]- 38 67939-42-8 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-[3-(trichlorosilyl)propyl]- 39 67969-69-1 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-[2-(phosphonooxy)ethyl]-, diammonium salt 40 67939-88-2 41 68081-83-4 42 68298-11-3 43 68329-56-6 44 68239-73-6 No. 1-Octanesulphonamide, N-[3-(dimethylamino)propyl]- 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, monohydrochloride Carbamic acid, (4-methyl-1,3-phenylene)bis-, bis[2-[ethyl[(perfluoro-C4-8-alkyl)sulphonyl]amino]ethyl] ester 1-Propanaminium, 3-[[(heptadecafluorooctyl)sulphonyl](3-sulphopropyl)amino]-N-(2hydroxyethyl)-N,N-dimethyl-, hydroxide, inner salt 2-Propenoic acid, eicosyl ester, polymer with 2-[[(heptadecafluorooctyl)sulphonyl] methylamino]ethyl 2-propenoate, hexadecyl 2-propenoate, 2[methyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2-propenoate, 2-[methyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-propenoate, 2[methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2-propenoate, 2-[methyl[(undecafluoropentyl)sulphonyl]amino]ethyl 2-propenoate and octadecyl 2-propenoate 1-Octanesulphonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(4-hydroxybutyl)-N-methylOffice location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 11 Table A1.1: Draft List of Compounds Potentially Degrading to PFOS in the Environment Ref CAS Number PFOS related substance 45 68310-75-8 1-Propanaminium, 3-[[(heptadecafluorooctyl)sulphonyl]amino]-N,N’,N’’-trimethyl-, iodide, ammonium salt 46 68541-80-0 47 68555-90-8 48 68555-91-9 49 68555-92-0 50 68608-14-0 2-Propenoic acid, polymer with 2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate and octadecyl 2-propenoate 2-Propenoic acid, butyl ester,polymer with 2-[[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl 2-propenoate, 2-[methyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2-propenoate, 2-[methyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-propenoate, 2-[methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2-propenoate and 2[methyl[(undecafluoropentyl)sulphonyl]amino]ethyl 2-propenoate 2-Propenoic acid, 2-methyl-, 2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl ester, polymer with 2-[ethyl[(nonafluorobutyl)sulphonyl]amino] ethyl 2-methyl2-propenoate, 2-[ethyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate, 2-[ethyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2-methyl-2propenoate, 2- [ethyl[(undecafluoropentyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate and octadecyl 2-methyl-2-propenoate 2-Propenoic acid, 2-methyl-, 2-[[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl ester, polymer with 2- [methyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2methyl-2-propenoate, 2- [methyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate, 2- [methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2methyl-2-propenoate, 2- [methyl[(undecafluoropentyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate and octadecyl 2-methyl-2-propenoate Sulphonamides, C4-8-alkane, perfluoro, N-ethyl-N-(hydroxyethyl), reaction products with 1,1'-methylenebis[4-isocyanatobenzene] No. 51 68649-26-3 52 68867-60-7 53 68877-32-7 54 68891-96-3 55 68909-15-9 56 68958-61-2 1-Octanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, reaction products with N-ethyl-1,1,2,2,3,3,4,4,4-nonafluoroN-(2-hydroxyethyl)-1-butanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2-hydroxyethyl)- 1-heptanesulphonamide, N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-(2-hydroxyethyl)-1-hexanesulphonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-(2-hydroxyethyl)-1pentanesulphonamide, polymethylenepolyphenyleneisocyanate and stearyl alc. 2-Propenoic acid, 2-[[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl ester, polymer with 2-[methyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2-propenoate, 2[methyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-propenoate, 2- [methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2-propenoate, 2[methyl[(undecafluoropentyl)sulphonyl]amino]ethyl 2-propenoate and.alpha.-(1-oxo-2-propenyl)-.omega.-methoxypoly(oxy-1,2-ethanediyl) 2-Propenoic acid, 2-methyl-, 2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl ester, polymer with 2-[ethyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2-methyl2-propenoate, 2-[ethyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate, 2-[ethyl[(tridecafluoro-hexyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate, 2[ethyl[(undecafluoro-pentyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate and 2-methyl-1,3-butadiene Chromium, diaquatetrachloro[.mu.-[N-ethyl-N- [(heptadecafluorooctyl)sulphonyl] glycinato-.kappa.O:.kappa.O']]-.mu.-hydroxybis(2-methylpropanol)di2-Propenoic acid, eicosyl ester, polymers with branched octylacrylate, 2- [[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl acrylate, 2-[methyl [(nonafluorobutyl)sulphonyl]amino]ethyl acrylate, 2- [methyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl acrylate, 2[methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl acrylate, 2- [methyl[(undecafluoropentyl)sulphonyl]amino]ethyl acrylate, polyethylene glycol acrylate Me ether and stearyl acrylate Poly(oxy-1,2-ethanediyl), .alpha.-[2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl]-.omega.-methoxy- 57 70225-14-8 1-Octanesulphonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, compd. with 2,2'-iminobis[ethanol] (1:1) 58 70776-36-2 59 71463-78-0 2-Propenoic acid, 2-methyl-, octadecyl ester, polymer with 1,1-dichloroethene, 2-[[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl 2-propenoate, N(hydroxymethyl)-2-propenamide, 2-[methyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2-propenoate, 2-[methyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2propenoate, 2-[methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2-propenoate and 2-[methyl[(undecafluoropentyl)sulphonyl]amino]ethyl 2-propenoate Phosphonic acid, [3-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]propyl]- 60 71463-80-4 Phosphonic acid, [3-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]propyl]-, diethyl ester Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 12 Table A1.1: Draft List of Compounds Potentially Degrading to PFOS in the Environment Ref No. CAS Number PFOS related substance 2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethenylbenzene, 2-[[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl 2-propenoate, 2[methyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2-propenoate, 2- [methyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-propenoate, 2[methyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2-propenoate, 2- [methyl[(undecafluoropentyl)sulphonyl]amino]ethyl 2-propenoate and 2-propenoic acid Sulphonamides, C4-8-alkane, perfluoro, N-(hydroxyethyl)-N-methyl, reaction products with epichlorohydrin, adipates (esters) 61 71487-20-2 62 91081-99-1 63 92265-81-1 64 94133-90-1 Ethanaminium, N,N,N-trimethyl-2-[(2-methyl-1-oxo-2-propenyl)oxy]-, chloride, polymer with 2-ethoxyethyl 2-propenoate, 2-[[(heptadecafluorooctyl)sulphonyl] methylamino]ethyl 2-propenoate and oxiranylmethyl 2-methyl-2-propenoate 1-Propanesulphonic acid, 3-[[3-(dimethylamino)propyl][(heptadecafluorooctyl) sulphonyl]amino]-2-hydroxy-, monosodium salt 65 94313-84-5 Carbamic acid, [5-[[[2-[[(heptadecafluorooctyl)sulphonyl]methylamino]ethoxy]carbonyl]amino]-2-methylphenyl]-, 9-octadecenyl ester, (Z)- 66 98999-57-6 67 127133-66-8 Sulphonamides, C7-8-alkane, perfluoro, N-methyl-N-[2-[(1-oxo-2-propenyl)oxy]ethyl], polymers with 2-ethoxyethyl acrylate, glycidyl methacrylate and N,N,Ntrimethyl-2-[(2-methyl-1-oxo-2-propenyl)oxy]ethanaminium chloride 2-Propenoic acid, 2-methyl-, polymers with Bu methacrylate, lauryl methacrylate and 2-[methyl[(perfluoro-C4-8-alkyl)sulphonyl]amino]ethyl methacrylate 68 129813-71-4 Sulphonamides, C4-8-alkane, perfluoro, N-methyl-N-(oxiranylmethyl) 69 148240-78-2 Fatty acids, C18-unsatd., trimers, 2-[[heptadecafluorooctyl)sulphonyl]methylamino]ethyl esters 70 148684-79-1 Sulphonamides, C4-8-alkane, perfluoro, N-(hydroxyethyl)-N-methyl, reaction products with 1,6-diisocyanatohexane homopolymer and ethylene glycol 71 160901-25-7 Sulphonamides, C4-8-alkane, perfluoro, N-ethyl-N-(hydroxyethyl), reaction products with 2-ethyl-1-hexanol and polymethylenepolyphenylene isocyanate 72 178094-69-4 73 178535-22-3 74 182700-90-9 1-Octanesulphonamide, N-[3-(dimethyloxidoamino)propyl]-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-,potassium salt Sulphonamides, C4-8-alkane, perfluoro, N-ethyl-N-(hydroxyethyl)-, polymers with 1,1'-methylenebis[4-isocyanatobenzene] and polymethylenepolyphenylene isocyanate, 2-ethylhexyl esters, Me Et ketone oxime-blocked 1-Octanesulphonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-methyl-, reaction products with benzene-chlorine-sulphur chloride (S2Cl2) reaction products chlorides 75 76 L-92-0151 (US Premanufacture notice) P-94-2205 (US Premanufacture notice) 2-Propenoic acid, 2-methyl-, butyl ester, polymer with 2-[ethyl[(heptadecafluorooctyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate, 2[ethyl[(nonafluorobutyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate, 2- [ethyl[(pentadecafluoroheptyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate, 2[ethyl[(tridecafluorohexyl)sulphonyl]amino]ethyl 2-methyl-2-propenoate and 2-propenoic acid Polymethylenepolyphenylene isocyanate and bis(4-NCO-phenyl)methane reaction products with 2-ethyl-1-hexanol, 2-butanone, oxime, N-ethyl-N-(2- hydroxyethyl)1-C4-C8 perfluoroalkanesulphonamide 77 192662-29-6 Sulphonamides, C4-8-alkane, perfluoro, N-[3-(dimethylamino)propyl], reaction products with acrylic acid 78 251099-16-8 1-Decanaminium, N-decyl-N,N-dimethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-1-octanesulphonic acid (1:1) 79 306973-46-6 Fatty acids, linseed-oil, dimers, 2- [[(heptadecafluorooctyl)sulphonyl]methylamino]ethyl esters 80 306973-47-7 Sulphonamides, C4-8-alkane, perfluoro, N-(hydroxyethyl)-N-methyl, reaction products with 12-hydroxystearic acid and 2,4-TDI, ammonium salts Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland Secretariat of the Stockholm Convention page 13 Table A1.1: Draft List of Compounds Potentially Degrading to PFOS in the Environment Ref CAS Number PFOS related substance 81 306974-19-6 Sulphonamides, C4-8-alkane, perfluoro, N-methyl-N-[(3-octadecyl-2-oxo-5-oxazolidinyl)methyl] 82 306974-28-7 83 306974-45-8 Siloxanes and Silicones, di-Me, mono[3-[(2-methyl-1-oxo-2-propenyl)oxy]propylgroup] -terminated, polymers with 2-[methyl[(perfluoro-C4-8alkyl)sulphonyl]amino]ethyl acrylate and stearyl methacrylate Sulphonic acids, C6-8-alkane, perfluoro, compounds with polyethylene-polypropylene glycol bis(2-aminopropyl) ether 84 306974-63-0 Fatty acids, C18-unsatd.,dimers, 2-[methyl[(perfluoro-C4-8-alkyl)sulphonyl]amino] ethyl esters 85 306975-56-4 86 306975-57-5 87 306975-62-2 88 306975-84-8 89 306975-85-9 90 306976-25-0 91 306976-55-6 92 306977-58-2 93 306978-04-1 Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,6-diisocyanatohexane, N-(hydroxyethyl)-N-methyl perfluoro C4-8-alkane sulphonamidesblocked 2-Propenoic acid, 2-methyl-, dodecyl ester, polymers with N-(hydroxymethyl)-2-propenamide, 2-[methyl[(perfluoro-C4-8-alkyl)sulphonyl]amino]ethyl methacrylate, stearyl methacrylate and vinylidene chloride 1-Hexadecanaminium, N,N-dimethyl-N-[2-[(2-methyl-1-oxo-2-propenyl)oxy]ethyl]-, bromide, polymers with Bu acrylate, Bu methacrylate and 2-[methyl[(perfluoroC4-8-alkyl)sulphonyl]amino]ethyl acrylate 2-Propenoic acid, 2-methyl-, 2-methylpropyl ester, polymer with 2,4-diisocyanato-1-methylbenzene, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 2-propenoic acid, N-ethyl-N-(hydroxyethyl)perfluoro-C4-8-alkanesulphonamides-blocked 2-Propenoic acid, 2-methyl-, 3-(trimethoxysilyl)propyl ester, polymers with acrylic acid, 2-[methyl[(perfluoro-C4-8-alkyl)sulphonyl]amino]ethyl acrylate and propylene glycol monoacrylate, hydrolysed, compounds with 2,2'-(methylimino)bis[ethanol] 2-Propenoic acid, butyl ester, polymers with acrylamide, 2-[methyl[(perfluoro-C4-8-alkyl)sulphonyl]amino]ethyl acrylate and vinylidene chloride 94 306978-65-4 Hexane, 1,6-diisocyanato-, homopolymer, N-(hydroxyethyl)-N-methyl perfluoro-C4-8-alkane sulphonamides- and stearyl alc.-blocked 95 306979-40-8 Poly(oxy-1,2-ethanediyl), .alpha.-[2-(methylamino)ethyl]-.omega.-[(1,1,3,3-tetramethylbutyl)phenoxy]-, N-[(perfluoro-C4-8-alkyl)sulphonyl] 96 306980-27-8 Sulphonamides, C4-8-alkane, perfluoro, N,N'-[1,6-hexanediylbis[(2-oxo-3,5-oxazolidinediyl)methylene]]bis[N-methyl- No. Propanoic acid, 3-hydroxy-2- (hydroxymethyl)-2-methyl-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and N,N',2-tris(6isocyanatohexyl)imidodicarbonic diamide, reaction products with N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-1octanesulphonamide and N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2-hydroxyethyl)-1-heptanesulphonamide, compounds with triethylamine Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer with 1,1'-methylenebis[4- isocyanatobenzene] and 1,2,3-propanetriol, reaction products with Nethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-1-octanesulphonamide and N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro-N-(2hydroxyethyl)-1-heptanesulphonamide, compounds with morpholine 2-Propenoic acid, 2-methyl-, dodecyl ester, polymers with 2- [methyl[(perfluoro-C4-8-alkyl)sulphonyl]amino]ethyl acrylate and vinylidene chloride Sources: US EPA (2002a); US EPA (2002b); Environment Agency (2001); Consultation with Environment Canada (note that RPA reviewed a confidential draft list of PFOS precursors that was provided by Environment Canada. This was developed from the 182 PFAS that were listed in a June 2000 survey to Canadian industry (Environment Canada, 2000). The draft list will be available as an appendix in the draft screening assessment report on PFOS and its Precursors that the Departments of Environment and Health Canada will release for public comment in early 2004 (Windle, 2003)). Office location: International Environment House, 11-13 chemin des Anémones, Châtelaine, 1219, Geneva, Switzerland