MOVEMENT OF PESTICIDES IN SOILS

WITH THE INCREASING USE OF SYNTHETIC ORGANIC PESTICIDES A KNOWLEDGE OF HOW THE CHEMICALS MOVE THROUGH THE SOIL BECOMES NECESSARY. IN ORDER TO EVALUATE POTENTIAL POLLUTION OF GROUND WATER SUPPLIES AN INVESTIGATION WAS UNDERTAKEN TO DETERMINE THE TYPE OF INFORMATION NEEDED FOR SATISFACTORY PREDICTION OF THIS MOVEMENT. IT WAS FOUND THAT THE ADSORPTION OF THE CHEMICALS COULD BE RELATED TO THE CLAY CONTENT OF THE SOILS, WHICH MAY BE DESCRIBED BY A FREUNDLICH TYPE ISOTHERM. THE RATE OF MOVEMENT IS INVERSELY RELATED TO THE ADSORPTION. THE EFFECT OF REPEATED APPLICATIONS OF BIODEGRADABLE CHEMICALS UPON THE MICROBIOLOGICAL CLIMATE MUST BE CONSIDERED, AS THE RESISTANCE OF THE SOIL BIOTA TO THE CHEMICALS CAN BE SERIOUSLY WEAKENED IN THE COURSE OF TIME. /AUTHOR/

  • Supplemental Notes:
    • Part 1, pp 156-171
  • Corporate Authors:

    Purdue University

    /Industrial Waste Conference Prog
    ,   USA 
  • Authors:
    • Mccarty, P L
    • King, P H
  • Publication Date: 1966-5

Subject/Index Terms

Filing Info

  • Accession Number: 00234059
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 1 1994 12:00AM