Hexachlorobenzene . 55.7. 2 alpha-HCH . 42. 3 beta-HCH . 16. 3 gamma-HCH. 23. 4 gamma-Chlordane . 6.9. 1.6 alpha-Chlordane . 24.4. 1.8Oxychlordane . 11. 1.8trans-Nonachlor . 39. 4Dieldrin. 59. 44,4’-DDE . 0.61 x 103. 0.04 x 1032,4’-DDD . 30. 44,4’-DDD . 0