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HEPTACHLOR (TRADE NAME VELSICOL 104) voluntarily stopped selling heptachlor Heptachlor is an insecticide light tan solid color, smells a bit like camphor originally used for malaria carrying mosquitos has been used for soil crop pest, cotton insects, grasshoppers. Last known use of heptachlor to kill termites in residential buildings in California in 1986 . Military personnel residential buildings. exposure to residues is possible listed as a hazardous air pollutant under section 311 in the 1990 Clean Air Act oxidized form is heptachlor epoxide Several incidents of heptachlor contamination of diary products in Hawaii, Oklahoma, Arkansas, and Missouri when diary cows were fed fodder that had been treated with heptachlor. By legal standards, fodder treated with this pesticide was allowed to be used after a specific waiting period for the compounds to breakdown FDA study -- toddlers and infants greater risk of heptachlor epoxide exposure in Northern central region of US Heptachlor is readily absorbed by intestines, stomach, skin, and lungs. Chronic exposure may affect the liver. Restricted use in the United states, the Soviet union, Italy, Switzerland, and Japan cancellation of most uses of the chemical pesticide in 1978. Chemical Backgrounders-Evironmental Health Center (Environmental Writer) Toxics A to Z (Harte, Holden, Schneider, Shirley)