. Introduction These technical guide lines prov ide guidance for the environmentally sound management(ESm)of wastes consisting of, containing or contaminated with the pesticides aldrin, chlordane, dieldrin, endrin, heptachlor, hexachlorobenzene(HCB), mirex or toxaphene(abbreviated as"Pesticide POPs")in accordance with decisions V/8. V1/23 and vIl/13 of the Conference of the parties to the basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal, decisions OEWG-1/4, OEWG-11710 and oEwG-111/8 of the Open-ended Working Group of the Basel Convention, and taking into account Resolution 5 of the Conference of Plenipotentiaries on the Stockholm Convention on Persistent Organic Pollutants and decisions INC-675 and INC-7/6 of the Intergovemmental Negotiating Committee for International Legally Binding Instrument for Implementing Intermational Action on Certain Persistent Organic Pollutants. The Conference of the Parties to the Stockholm Convention on Persistent Organic Pollutants may consider these guidelines in accordance with article 6.2 of that convention 2 In these technical guidelines all pesticides listed as Persistent Organic Pollutants(POPs) in Annex A of the Stockholm Convention are addressed. Dichloro-diphenyl-trichloroethane(dDt) has been addressed separately in Annex B of the Stockholm Convention and is addressed in separate technical guidelines owing to its importance for malaria vector control in many tropicalcountries HCB as an unintentionally produced POP and as an industrial chemical is not covered by thes guidelines. HCB as an unintentionally produced POP will be addressed in technical guidelines for the environmentally sound management of wastes consisting of, conta ining or contam inated with PCDDs, PCDFs or unintentionally produced PCBs or HCB HCB asan industrial chemical will be addressed in technical guidelines for the env ironmenta lly sound management of wastes consisting of, conta ining or contaminated /ith HCb as an industrial chem ical 4. This document should be used in conjunction with the General Technical Guidelines for Environmentally Sound Management of Wastes Consisting of, Containing or Contaminated with Persistent nature and occurrence of wastes consisting of, conta iningor contaminated with pesticide POPs(exceptIon Organic Pollutants(General Technical Guidelines). This document provides more detailed information on the for purposes of their identification and management B. Description, production, use and wastes Aldrin Aldrin are white, odourless crystals, when they are pure. Technical grades are tan to dark brown with a mild chem ical odour(Ritter, year). Aldrin contains no less than 95%1, 2, 3, 4, 10, 10-hexachloro 1, 4, 4a, 5, 8, 8a-hexahydro-exo-1, 4-endo-5, 8-dimethanonaphtalene(HHDN). HHDN is a white, crystalline odourless solid with a melting point of 104 to 1045C. Technical aldrin is a tan to dark brown solid with a melting range from 49 to 60C. It is practically insoluble in water, moderately soluble in petroleum oil and stable to heat alkali and mild acids(ATSDR, 2002; IPCS, no date, WHO-FAO, 1979). Pure a ldrin is stable at <200C and between a pH-range from 4 to 8, however, oxidizing agents and concentrated acids attack the unchlorinated ring under any conditions. Aldrin is non-corrosive or slightly corrosive to metals because of the slow formation of hydrogen chloride on storage. Aldrin and Dieldrin are the common names oftwo insecticides, which are chem ically closely related. Aldrin is readily converted to dieldrin in the environment ( Global Pesticides Release Database, Environment Canada, no date). See annex I for examples of trade names (a) Production condensation was usually performed at approx ima tely 120C and atatmospheric pressure Excel ctured by Aldrin was first synthesized as a pesticide in the United States in 1948. Aldrin was manufa the Diels-Alder reaction of hexachlorocyclopentadiene with bicyclo[2. 2. 11-2, 5-heptadiene. The fin bicyclohepta diene was removed by distillation. The final product was usually further purified by recrystallization. Aldrin has been manufactured commercially since the 1950, and used throughout the world up to the early 1970s(ATSDR 2002, UNEP 2003 d) April 2005 5[Document Number] April 2005 5 I. Introduction A. Scope 1. These technical guidelines provide guidance for the environmentally sound management (ESM) of wastes consisting of, containing or contaminated with the pesticides aldrin, chlordane, dieldrin, endrin, heptachlor, hexachlorobenzene (HCB), mirex or toxaphene (abbreviated as “Pesticide POPs”) in accordance with decisions V/8, VI/23 and VII/13 of the Conference of the Parties to the Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal, decisions OEWG-I/4, OEWG-II/10 and OEWG-III/8 of the Open-ended Working Group of the Basel Convention, and taking into account Resolution 5 of the Conference of Plenipotentiaries on the Stockholm Convention on Persistent Organic Pollutants and decisions INC-6/5 and INC-7/6 of the Intergovernmental Negotiating Committee for an International Legally Binding Instrument for Implementing International Action on Certain Persistent Organic Pollutants. The Conference of the Parties to the Stockholm Convention on Persistent Organic Pollutants may consider these guidelines in accordance with article 6.2 of that convention. 2. In these technical guidelines all pesticides listed as Persistent Organic Pollutants (POPs) in Annex A of the Stockholm Convention are addressed. Dichloro-diphenyl-trichloroethane (DDT) has been addressed separately in Annex B of the Stockholm Convention and is addressed in separate technical guidelines owing to its importance for malaria vector control in many tropical countries. 3. HCB as an unintentionally produced POP and as an industrial chemical is not covered by these guidelines. HCB as an unintentionally produced POP will be addressed in technical guidelines for the environmentally sound management of wastes consisting of, containing or contaminated with PCDDs, PCDFs or unintentionally produced PCBs or HCB. HCB as an industrial chemical will be addressed in technical guidelines for the environmentally sound management of wastes consisting of, containing or contaminated with HCB as an industrial chemical. 4. This document should be used in conjunction with the General Technical Guidelinesfor Environmentally Sound Management of Wastes Consisting of, Containing or Contaminated with Persistent Organic Pollutants (General Technical Guidelines). This document provides more detailed information on the nature and occurrence of wastes consisting of, containing or contaminated with pesticide POPs (except DDT) for purposes of their identification and management. B. Description, production, use and wastes 1. Aldrin (a) Description 5. Aldrin are white, odourless crystals, when they are pure. Technical grades are tan to dark brown with a mild chemical odour (Ritter, year). Aldrin contains no less than 95 % 1,2,3,4,10,10-hexachloro, 1,4,4a,5,8,8a -hexahydro-exo-1,4-endo-5,8-dimethanonaphtalene (HHDN). HHDN is a white, crystalline, odourless solid with a melting point of 104 to 104.5 °C. Technical aldrin is a tan to dark brown solid with a melting range from 49 to 60 °C. It is practically insoluble in water, moderately soluble in petroleum oil and stable to heat alkali and mild acids (ATSDR, 2002; IPCS, no date; WHO-FAO, 1979). Pure aldrin is stable at < 200 °C and between a pH-range from 4 to 8, however, oxidizing agents and concentrated acids attack the unchlorinated ring under any conditions. Aldrin is non-corrosive or slightly corrosive to metals because of the slow formation of hydrogen chloride on storage. Aldrin and Dieldrin are the common names of two insecticides, which are chemically closely related. Aldrin is readily converted to dieldrin in the environment (Global Pesticides Release Database, Environment Canada, no date). See annex I for examples of trade names. (a) Production 6. Aldrin was first synthesized as a pesticide in the United States in 1948. Aldrin was manufactured by the Diels-Alder reaction of hexachlorocyclopentadiene with bicyclo[2.2.1]-2,5-heptadiene. The final condensation was usually performed at approximately 120 °C and at atmospheric pressure. Excess bicycloheptadiene was removed by distillation. The final product was usually further purified by recrystallization. Aldrin has been manufactured commercially since the 1950, and used throughout the world up to the early 1970s (ATSDR 2002, UNEP 2003 d)