Lec20_POP_bioaccumulation

Lec20_POP_bioaccumulation - Lecture 20: Persistent Organic...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 20: P ersistent O rganic P ollutants and Bioaccumulation CHEM/ENVS 380 May 6, 2010 Compound Type Aldrin Organochlorine pesticide Chlordane Organochlorine pesticide DDT Organochlorine pesticide Dieldrin Organochlorine pesticide Eldrin Organochlorine pesticide Heptachlor Organochlorine pesticide Hexachlorobenzene Organochlorine pesticide, industrial chemical, byproduct Mirex Organochlorine pesticide Toxaphene Organochlorine pesticide PCBs industrial chemical, byproduct Doxins byproduct Furans byproduct More info available at: http://www.chem.unep.ch/Pops/default.htm http://www.pesticideinfo.org/ UN Environment Program POPs
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Molecular Structures of Some Organochlorine Insecticides
Background image of page 2
Major Properties of POPs? Chemically stable Low water solubility and high lipid solubility facilitates _______________ Toxic Linked to birth defects, cancers, immune and nervous system damage
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
DDT ( para -dichlorodiphenyltrichloroethane) The very first of modern chemical pesticides. 1945: “Miraculous” (Sir Winston Churchill) 1962: “Elixir of Death” (Rachel Carson, Silent Spring) Bioaccumulates Devastating effect on fish-eating birds Ecosystem-wide effects (e.g., Borneo 1960’s: mosquitoes geckos village cats rat population boom bubonic plague) 1973: Banned in the US Campbell and Reece (2002) Biology, 6 th ed., Benjamin Cummings.
Background image of page 4
DDT and DDE DDE: a metabolite of DDT very persistent does not have insecticidal properties Most “DDT” in our body is in fact the metabolite DDE. DDE interferes with Ca
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/23/2011 for the course CHEM 380 taught by Professor Staff during the Spring '11 term at S.F. State.

Page1 / 22

Lec20_POP_bioaccumulation - Lecture 20: Persistent Organic...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online