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Synthetic Organic Chemicals

Synthetic Organic Chemicals. Synthetic Organic Chemicals. Organochlorines. Dioxins Pesticides. Dioxin. Chlordane. PCBs. Cleaning agents. DDT. PBDE. Flame Retardants. Solubility. Organochlorines as well as many other synthetic organic compounds are poorly soluble in water. 0.2 µg/L.

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Synthetic Organic Chemicals

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  1. Synthetic Organic Chemicals

  2. Synthetic Organic Chemicals Organochlorines Dioxins Pesticides Dioxin Chlordane PCBs Cleaning agents DDT PBDE Flame Retardants

  3. Solubility Organochlorines as well as many other synthetic organic compounds are poorly soluble in water

  4. 0.2 µg/L Dioxin PCB 10-31 µg/L (50% Cl) DDT insoluble Principally carbon, hydrogen

  5. Dioxin

  6. Hexane Improving Solubility Organic Solvents Soap/detergents Structural/chemical similarity between the chemical and the solvent.

  7. Bioaccumulation, Lipids and Solubility Structural similarity between the chemical and the solvent.

  8. Solubility A chemical’s solubility in lipids is inversely proportional to its solubility in water. Lipid (Carbon/hydrogen) Carbon/hydrogen water

  9. Zooplankton to fish: 31 x Fish to eagle: 4.8x Bio-Accumulation Water and phytoplankton to zooplankton: 800 x Overall: 120,000 times original concentration

  10. PCBs Spokane River Nov. 2002 Banned in 1979 Smallmouth bass - 1100-1800 ppb    Round gobies - 200-800 ppb    Zebra mussels - 100 ppb

  11. Toxaphene Biomagnification Seawater 0.0003 ppb Arctic cod muscle 14 - 46 ppb Narwhal blubber 2440 - 9160 ppb BAF = 8 million

  12. Mirex: 1959 - 1976 highest levels ever recorded in a living organism.

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