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Volatility Of Pesticides

  1. Alan W. Taylor

Published Online: 15 APR 2003

DOI: 10.1002/047126363X.agr239

Encyclopedia of Agrochemicals

Encyclopedia of Agrochemicals

How to Cite

Taylor, A. W. 2003. Volatility Of Pesticides. Encyclopedia of Agrochemicals. .

Author Information

  1. College Park, Maryland

Publication History

  1. Published Online: 15 APR 2003

Abstract

Volatilization and chemical degradation are the principal causes of the loss of pesticide residues from target areas after application. Except in very special circumstances, the total seasonal losses in surface runoff and movement in eroding soil rarely exceed 5 or 10% of the total applied and the fraction removed by leaching is much less. Volatilization rates depend upon complex interactions between the chemical properties of the individual compounds, the properties of the soil or plant tissue on which they are adsorbed, and the weather, and—not least—they way in which they are applied and how the crop receiving them is managed.

Keywords:

  • volatilization;
  • pesticides;
  • reside distribution effects;
  • fugacity relationships;
  • Henry's Law;
  • chemical degradation;
  • pesticide residue