U g i l e c Re-assessment under provisions of UN-ECE POPs protocol 1 st meeting of TFPOP, The Hague March 2004

Ugilec 141 formula C 14 H 10 Cl 4 w ater s olubility 5 µg/l (20 °C) v apour p ressure < 10 Pa (20°C) l og K ow 6.03 – 6.44 l og BCF 1.67 – 2.68 l/kg (fish) 4.43 – 5.19 l/kg (mussels) DT50 atmosphere (AOPWIN) 3.1 days

Ugilec 121 or 21 formula C 14 H 2 Cl 2 w ater s olubility < 1 µg/L (20 °C) v apour p ressure Pa (20°C) l og K ow 5.85 (QSAR) log BCF 1.67 – 2.68 l/kg (fish) 4.43 – 5.19 l/kg (mussels) T/2 atmosphere (AOPWIN) 2.3 days

Annex II of UN-ECE protocol on POPs substances scheduled for restrictions on use DDT; HCH; PCB a) a) The Parties agree to reassess under the Protocol by 31 December 2004 the production and use of polychlorinated terphenyls and “ugilec“

Regulatory Action within the EU Directive 76/769/EEC on the approximation of the laws, regulations and adminisrative provisions of the MSs relating to restrictions on themarketing and use of certain dangerous substances and preparations 11th amendment: Council Directive 91/339/EEC  Though less dangerous to man and the environment than the PCBs it was designated to replace …  By virtue of its ecotoxcity, persistence and potential to bio- accumulate Ugilec 141 constitutes a high risk to the environment  Significant environmental contamination has already been documented in the vicinity of mining operations using this substance as a hydraulic fluid

Monitoring (Ugilec 141 in German river sediments) concentrations of Ugilec and PCBs in sediments of river Saar (Germany) peaks indicate vicinity of mining operations- using Ugilec 141 as a hydraulic fluid

Regulatory Action within the EC Council Directive 91/339/EEC – (continued)  In the event of a fire involving any equipment containing this substance highly toxic substances may be given off  This substances (Ugilec 121 or 21) has similar properties and behaviour and was untended for uses similar to that of Ugilec 141 …

Regulatory Action within the EC As from 18 June 1994 the marketing and use of Ugilec 141 and of preparations and products containing this substance shall be prohibited.  Exception in the case (of the maintenance) of plant and machinery already in service on 18 June 1994 until such plant and machinery is disposed of  As from 18 June 1994 the placing on the secondhand market of this substance, preparations containing this substance and plant/machinery containing this substance, shall be prohibited. The marketing and use of Ugilec 121 or Ugilec 21 and of preparations and products containing it shall be prohibited.

Regulatory Action within the EC ( waste disposal ) Council Directive 96/59/EC on disposal of PCBs and PCTs (and Ugilec) obliges Member States to:  Compile inventories of equipment containing more than 0.005% PCBs and mixtures of PCBs, whose volume is in excess of 5 liters  Prohibit separation of PCBs for purpose of re-use  Prohibit the topping up of transformers with PCBs  Safely remove PCBs from transformers containing more than % PCBs (or mixtures with PCBs) by weight  Allow continued use of PCBs containing transformers only if they are in good working order  Destroy waste containing PCBs and equipment containing PCBs as soon as possible (not later than by 2010)  Develop installations for the disposal, decontamination and safe (permanent) storage of PCBs

Regulatory Action within the US and Canada U.S. Not on Toxic Substances Control Act (TSCA) Section 8b Inventory of existing industrial chemicals in commerce. Any intended industrial chemical-type use would require 90-day advance pre-manufacture notification (PMN). No other information found suggesting current or historical domestic production Canada Not on the list of existing substances. Intended uses would be treated as new substance, thus being subject to risk assessment and subsequent risk management measures

Outcome from a questionnaire in 2001  At no time commercially available in the US / Canada  Manufacture and use ceased in Europe from mid 1994 onwards (“unknown“ for Armenia and Khazakhstan)  Lacking information about extent of historical uses ( and possibly ongoing uses ) phasing-out programme in place along with PCBs (EU) subject to specific waste management system (EU)

Socio-economic considerations - Alternatives Liquid alternatives Mineral oils, silicon oils, castor oil etc. Dry insulating insulating inert gases, resin castings, plastics coatings

related compounds... Bis(p-chlorophenyl) methane ( ) intermediate for the synthesis of industrial polymers

related compounds... DBBT (dibromo- diphenyl methane ( ) regulated in the EU along with Ugilec 121 or 21